Infleqtion

Lead the development and productization of software systems interfacing with quantum and embedded hardware. Oversee global software development efforts and ensure adherence to best practices. | Candidates should have a Bachelor's or Master's degree in Computer Science or related fields and at least 4 years of professional software engineering experience. Proficiency in Python and JavaScript/TypeScript, along with experience in modern development workflows, is essential. | Description Infleqtion is on a mission to commercialize atom-based quantum technologies that deliver orders-of-magnitude improvements in sensing and computing applications. As a deep-tech startup, we embrace a results-driven, fast-paced, and customer-focused approach to innovation. We are seeking a Senior Software Engineer to lead the development and productization of our software systems that interface with cutting-edge quantum and embedded hardware. This role focuses on full-stack software engineering, team leadership, and the establishment of strong software engineering practices. While a physics background is not required, familiarity with physical systems or scientific instrumentation will be helpful. The ideal candidate is a software engineer first, with strong embedded systems awareness and proven leadership in modern software development environments. Role and responsibilities Leadership & Coordination of global software development efforts for quantum sensing products Serve as technical lead for the software engineering team, guiding day-to-day operations and development priorities. Collaborate with project managers and technical leads to plan and execute development milestones. Lead daily stand-up meetings, manage the Jira board, and ensure timely completion of sprint goals. Oversee and enforce software engineering best practices, including code reviews, testing standards, documentation, and CI/CD processes. Act as the liaison between the software engineering team and the broader multidisciplinary project team. Software Development Lead development of the frontend application built with React/Next.js, ensuring high performance, maintainability, and scalability. Own the backend REST API written in Python (FastAPI), ensuring robust integration with hardware control and middleware layers. Contribute to integration with Rust-based middleware and/or driver software used for device control. Collaborate with embedded systems engineers to ensure seamless interaction between software and hardware components. Participate in architecture discussions and contribute to technical design documentation. Support the transition of projects from prototype to production-ready systems. Required Qualifications Bachelor’s or Master’s degree in Computer Science, Software Engineering, or equivalent experience. 4+ years of professional software engineering experience. Expert-level proficiency in Python and JavaScript/TypeScript. Strong experience with React and Next.js frontend frameworks. Experience with FastAPI or similar modern Python web frameworks. Familiarity with embedded software concepts (device drivers, low-level APIs, hardware communication protocols). Demonstrated experience leading software development teams or acting as a technical lead. Deep understanding of modern development workflows (Git, Jira, CI/CD pipelines, automated testing). Desired Qualifications Experience with Rust (especially in middleware or systems contexts). Exposure to or interest in scientific instrumentation, hardware control, or physics-related systems. Familiarity with Docker, Kubernetes, or other containerized deployment systems. Experience in startups or R&D-focused environments. Note This position may require access to information protected under U.S. export control laws and regulations for quantum sensing technology. Please note that any offer for employment may be conditioned on authorization to receive software or technology controlled under these U.S. export control laws and regulations without sponsorship for an export license. Working Conditions and Physical Requirements Work will normally be performed in an office and laboratory environment and around technical equipment including computers and lasers. We ask that candidates be able to efficiently use automated office equipment such as laptops, copiers, and printers; able to effectively engage in communications (via phone, computer, or in-person). Any required Personal Protective Equipment will be provided and must be properly used in accordance with company requirements. Travel Up to 10% travel may be required. Benefits Salary range: 106,000 to 141,000 USD/year 100% company-paid medical, dental, vision, short/long-term disability Employer-funded Health Savings Account Unlimited PTO 401(k) match Company-paid Life and AD&D Insurance Flexible Savings Account Paid FMLA, Maternity/Paternity Leave Employee Assistance Program Student Loan Repayment Equity Program

Lead full-cycle recruiting for specialized technical roles, partnering with leadership to develop sourcing strategies, manage hiring processes, and provide data-driven insights. | 5+ years recruiting complex technical/scientific roles, experience managing global searches, proficiency with sourcing tools, strong communication skills, bachelor's degree, and willingness to travel up to 10%. | About Infleqtion Infleqtion harnesses the power of quantum to expand human potential. We design, build, and sell quantum computers, precision sensors, and software, commercializing atom–based quantum products that deliver orders-of-magnitude improvement in computing, sensing, and timing applications. Our technologies support breakthroughs across artificial intelligence, national security, energy optimization, scientific discovery, material science, and space exploration. As the world’s only full-spectrum quantum company, Infleqtion operates at the intersection of science and scalability. Our teams in Boulder, Chicago, Madison, Oxford, and Melbourne are building quantum systems that transform research into reality and accelerate the world’s quantum advantage. At Infleqtion, we’re building the quantum future one atom at a time. The Opportunity We’re looking for a Senior Technical Recruiter who can lead from the front - someone who knows how to attract and select brilliant minds that change industries. This role partners closely with leadership across engineering, research, and operations to build the teams driving our global quantum mission. You’ll own full-cycle recruiting for highly specialized and technical roles, designing and executing strategies that meet aggressive growth goals while maintaining a best-in-class candidate experience. You’ll bring both vision and hustle - building strategy, relationships, and results in equal measure If you thrive in environments where ambition meets precision, and where your work directly shapes the future of technology, you’ll fit right in. This is a hands-on, high-impact role for someone who thrives on ownership. You’ll lead end-to-end recruiting, supported by a collaborative executive team and cross-functional partners. The right person will balance strategy and execution with equal energy from designing sourcing plans to closing world-class talent. Primary Responsibilities: Partner with business leaders across multiple time zones to define hiring priorities and deliver on high-impact technical searches. Develop and execute sourcing strategies for niche and competitive talent pools — from quantum physicists to embedded systems engineers. Manage the full recruiting lifecycle: sourcing, outreach, interviewing, negotiation, and onboarding. Build trusted partnerships with hiring managers, influencing decisions through market insight and data-driven guidance. Champion Infleqtion’s employer brand by showcasing our mission, technology, and people across global markets. Provide leadership with regular analytics and hiring metrics to drive strategy and continuous improvement. Ensure alignment with employment laws globally. Required Skills and Qualifications: At least 5 years of experience recruiting for complex technical or scientific roles, ideally within quantum, semiconductor, deep-tech, or advanced hardware/software industries. Demonstrated success managing multiple searches across global locations and disciplines. Strong command of sourcing tools (LinkedIn Recruiter, Workable, etc.) and modern recruiting strategies. Excellent communication and influence skills, comfortable engaging both PhDs and executives. A growth mindset and the ability to thrive in a high-velocity, high-accountability environment. Bachelor’s degree in human resources, Business Administration, or related field. Willingness to travel domestically and internationally up to 10%. Preferred Qualifications: Professional recruiting certification (SHRM-CP, AIRS, or LinkedIn Certified Recruiter). Prior experience recruiting in quantum, photonics, or advanced R&D environments. Familiarity with global employer branding and talent marketing strategies. Benefits Salary range: 105,000 to 135,000 USD/year 100% company-paid medical, dental, vision, short/long-term disability Employer-funded Health Savings Account Unlimited PTO 401(k) match Company-paid Life and AD&D Insurance Flexible Savings Account Paid FMLA, Maternity/Paternity Leave Employee Assistance Program Student Loan Repayment Equity Package

Lead all SEC financial reporting, technical accounting, internal controls, and audit processes for a public company. | CPA license, 10+ years accounting experience including 3-5 years public company SEC reporting, strong leadership, and knowledge of U.S. GAAP. | Infleqtion is a global leader in neutral-atom quantum technology. We design and build quantum computers, precision sensors, and quantum software for governments, enterprises, and research institutions. Our commercial portfolio includes quantum computers as well as quantum RF systems, quantum clocks, and inertial navigation solutions. Infleqtion is the partner of choice for governments and commercial customers seeking cutting-edge quantum capabilities Position Overview Infleqtion is poised for significant growth as we prepare for our transition to a publicly traded company. We are seeking a highly accomplished and strategic Director, Financial Reporting to lead our financial reporting function. This individual will be responsible for managing all aspects of the company’s SEC reporting, technical accounting, and internal controls. This is a unique opportunity for a proven leader to build a world-class public company reporting infrastructure in a dynamic, high-growth environment. Key Responsibilities • Lead the preparation and filing of all external financial reports, including Form 10-K and Form 10-Q, ensuring accuracy, timeliness, and compliance with all SEC requirements. • Manage the technical accounting research and implementation of new accounting standards and complex transactions in accordance with U.S. GAAP. • Direct the month-end, quarter-end, and year-end close processes, providing leadership and guidance to the broader accounting team. • Serve as the primary point of contact for external auditors, managing the annual audit process and all related requests. • Oversee and ensure compliance with Sarbanes-Oxley (SOX) internal control requirements. • Partner with cross-functional teams, including legal, investor relations, and FP&A, to support public company initiatives. • Drive continuous process improvements to enhance efficiency, accuracy, and control within the financial reporting function. Location & Work Arrangement This is a full-time, hybrid position in Louisville, CO. Requirements Qualifications • Bachelor’s degree in accounting or finance; CPA license is required. • 10+ years of progressive experience in accounting and financial reporting, with a minimum of 3-5 years in a public company setting. • Extensive experience with SEC reporting (Form 10-K and 10-Q) and deep knowledge of U.S. GAAP. • Experience in a public accounting firm (e.g., Big 4) is highly preferred. • Demonstrated leadership ability to manage and develop a team. • Exceptional attention to detail and strong organizational skills with the ability to manage competing priorities in a fast-paced environment. • Excellent communication and interpersonal skills, with the ability to build effective relationships across all levels of the organization. Important Note Regarding U.S. Export Controls This position may require access to information protected under U.S. export control laws and regulations, including the Export Administration Regulations (EAR) and the International Traffic in Arms Regulations (ITAR). This role requires that you do not need sponsorship, or a work visa transfer. Please note that any offer for employment may be conditioned on authorization to receive software or technology controlled under these U.S. export control laws and regulations without sponsorship for an export license. Benefits The targeted salary range for this role is $150,000 - $185,000 depending on experience, plus eligibility to participate in our annual incentive plan. In addition to your base compensation, we offer a generous Total Rewards program which includes: • 100% company-paid employee coverage for Medical, Dental, Vision, and Short/Long Term Disability insurance programs. • Employer-funded Health Savings Account. • Unlimited Paid Time Off. • 401(k) safe harbor contribution. • Company paid Life and AD&D Insurance. • Flexible Savings Account. • Paid FMLA Leave. • Paid Maternity/Paternity Leave. • Employer Assistance Program. • Student Loan Repayment. • Equity Opportunity

Develop analog and mixed signal designs for quantum systems and sensors. Collaborate with a team to ensure the successful integration and testing of custom circuits. | A Bachelor's degree in Electrical Engineering is required along with functional knowledge of schematic capture and layout software. Candidates should have experience with circuit noise analysis and the ability to work safely with high voltage circuits. | Infleqtion is a global quantum technology company solving the world’s most challenging problems. The company harnesses quantum mechanics to build and integrate quantum computers, sensors, and networks. From fundamental physics to leading edge commercial products, Infleqtion enables “quantum everywhere” through our ecosystem of devices and platforms. Position Summary We are seeking an Associate Electrical Engineer to develop analog and mixed signal designs as part of our Emerging Technology team. This individual will be a key contributor in the electrical design, integration, test, and qualification of custom circuits and control system subsystems for operation of deployed quantum systems and sensors in space, terrestrial, and lab-based environments. Initially, this role will be in support of a technology demonstration mission in collaboration with NASA JPL/Goddard that will demonstrate a first-of-its-kind quantum gravity gradient (QGG) sensor on a dedicated satellite. The successful candidate will collaborate with an extended team of electrical engineers, physicists, mechanical engineers, embedded systems engineers, and systems engineers to develop high performance, low noise, radiation tolerant and robust circuits critical to the operation of this exciting new quantum sensing capability demonstrator. Key Responsibilities Execute engineering projects and deliver them on time and budget Learn from other engineers to facilitate personal training and professional growth Develop analog circuits, including design, schematic capture, PCB layout, prototyping build, test, validation, and troubleshooting Design, model, and simulate analog circuits and validate circuit performance through bench testing Preferred focus on low noise and low drift circuit design Design control loops in the analog and digital domains Collaborate with engineers, physicists, and technicians to troubleshoot, debug, and rework existing circuit boards in use Perform quality and performance analysis on new and legacy electrical systems Work with other engineering disciplines on electrical, mechanical, and thermal interface requirements and design Summarize data and report on test results Other duties or projects as assigned to ensure mission success About the Team You’ll join a passionate and experienced team developing one of the world's first space-deployable quantum gravity sensors. This effort is foundational to future navigation, earth science, and resource exploration missions. Travel Up to 10% local travel may be required. Minimum Qualifications Bachelor’s degree in Electrical Engineering Functional knowledge of schematic capture and layout software, e.g. OrCAD, Altium, PADS, etc. Demonstrated capability to employ and/or learn circuit noise analysis and analog circuit analysis, as well as signal-integrity, power integrity and EMI/EMC requirements Experience with component derating and PCB-level thermal mitigation Ability to work safely with high voltage and/or high current circuits and test equipment Proficient in MS Office Good verbal and written communication skills, able to effectively share information with technical and non-technical staff Good collaboration skills, able to work in a team environment where engagement and participation are an expected part of successful job performance This position may require access to information protected under U.S. export control laws and regulations, including the Export Administration Regulations (EAR) and the International Traffic in Arms Regulations (ITAR). Please note that any offer for employment may be conditioned on authorization to receive software or technology controlled under these U.S. export control laws and regulations without sponsorship for an export license Preferred Qualifications Working knowledge of control systems and signal processing Experience in circuit simulation using SPICE software Experience with high and ultra-high vacuum system environments Experience with Contract Electronic Manufacturing Experience with power electronics including DC-DC converters, filters, and high power (<1kW) amplifiers Working Conditions and Physical Requirements This position may require access to information protected under U.S. export control laws and regulations, including the Export Administration Regulations (EAR) and the International Traffic in Arms Regulations (ITAR). Please note that any offer for employment may be conditioned on authorization to receive software or technology controlled under these U.S. export control laws and regulations without sponsorship for an export license Work will normally be performed in an office and laboratory environment and around technical equipment including computers and lasers. Able to sit, stand, bend, lift and carry up to 40 pounds without assistance. Able to efficiently use automated office equipment such as laptops, copiers, and printers; able to effectively engage in communications (via phone, computer, or in-person). Any required Personal Protective Equipment will be provided and must be properly used in accordance with company requirements. The targeted salary range for this role is 75,000 to 95,000 USD on an annualized basis plus eligibility to participate in our annual incentive plan. In addition to your base compensation, we offer a generous Total Rewards program which includes: 100% company paid Employee coverage for Medical, Dental, Vision, and Short/Long Term Disability insurance programs Employer funded Health Savings Account Unlimited Paid Time Off 401(k) Matching Programs Company paid Life and AD&D Insurance Flexible Healthcare Savings Account Paid FMLA Leave Paid Maternity/Paternity Leave Employer Assistance Program Student Loan Repayment Equity Opportunity

The Senior Electrical Engineer will execute engineering projects, ensuring timely and budget-conscious delivery while collaborating with a diverse team to troubleshoot and debug existing systems. They will also manage and mentor junior engineers to ensure project success. | Candidates must have a bachelor's or master's degree in Embedded Systems Engineering or Electrical Engineering and at least four years of relevant experience. Proficiency in embedded system firmware development and FPGA development is highly preferred. | We are seeking a Senior Electrical Engineer specializing in embedded system firmware and software to join our Emerging Technology team. This individual will be a key contributor in the development of embedded control systems design, build, integration, test, and qualification for operation of deployed quantum systems and sensors in space, terrestrial, and lab-based environments. Initially, this role will be in support of a technology demonstration mission in collaboration with NASA JPL/Goddard that will demonstrate a first-of-its-kind quantum gravity gradient (QGG) sensor on a dedicated satellite. The successful candidate will collaborate with an extended team of electrical engineers, physicists, mechanical engineers, embedded systems engineers, systems engineers, and sub vendors to develop high performance, radiation tolerant, and robust circuits critical to the operation of this exciting new quantum sensing capability demonstrator. Key Responsibilities Execute engineering projects and deliver them on time and budget Collaborate with engineers, physicists, and technicians to troubleshoot and debug existing circuit boards and control systems in use Perform quality and performance analysis on new and legacy electrical systems Work with other engineering disciplines on electrical, mechanical, and thermal interface requirements and design Summarize data and report on test results Provide estimates of resources needed to deliver successful projects on schedule and budget. Manage and mentor peers and more junior team members to ensure project success Communicating with key stakeholders on progress, barriers, and status Other duties or projects as assigned to ensure mission success About the Team You’ll join a passionate and experienced team developing one of the world's first space-deployable quantum gravity sensors. This effort is foundational to future navigation, earth science, and resource exploration missions. Travel Up to 10% local travel may be required. Minimum Qualifications Bachelors or master’s degree in Embedded Systems Engineering, Electrical Engineering, or equivalent At least four years of experience in a relevant industry or field Highly proficient in at least one of the two following areas, proficiency in both areas preferred: Embedded system firmware development in Rust. If you have relevant expertise but with C/C++, you may still be successful in this role if you have interest in Rust and have some idea of how Rust can be used to rapidly develop safe and performant systems FPGA development, specifically with Xilinx FPGAs, along with experience creating testbenches and verifying complex designs. Experience with Microblaze processors, or high-level synthesis/testing languages like SpinalHDL or cocotb is a plus. Proficient in MS Office Good verbal and written communication skills, able to effectively share information with technical and non-technical staff Good collaboration skills, able to work in a team environment where engagement and participation are an expected part of successful job performance Experience mentoring and managing more junior engineers This position may require access to information protected under U.S. export control laws and regulations, including the Export Administration Regulations (EAR) and the International Traffic in Arms Regulations (ITAR). Please note that any offer for employment may be conditioned on authorization to receive software or technology controlled under these U.S. export control laws and regulations without sponsorship for an export license Preferred Qualifications Experience with space-deployed systems and the associated challenging vibration, thermal, and radiation environment Experience with Contract Electronic Manufacturing Experience mentoring and managing more junior engineers Working Conditions and Physical Requirements Work will normally be performed in an office and laboratory environment and around technical equipment including computers and lasers. Able to sit, stand, bend, lift and carry up to 40 pounds without assistance. Able to efficiently use automated office equipment such as laptops, copiers, and printers; able to effectively engage in communications (via phone, computer, or in-person). Any required Personal Protective Equipment will be provided and must be properly used in accordance with company requirements. The targeted salary range for this role is $120,000 to 150,000 on an annualized basis plus eligibility to participate in our annual incentive plan. In addition to your base compensation, we offer a generous Total Rewards program which includes: 100% company paid Employee coverage for Medical, Dental, Vision, and Short/Long Term Disability insurance programs Employer funded Health Savings Account Unlimited Paid Time Off 401(k) Matching Programs Company paid Life and AD&D Insurance Flexible Healthcare Savings Account Paid FMLA Leave Paid Maternity/Paternity Leave Employer Assistance Program Student Loan Repayment Equity Opporutnity Equal Opportunity Here you have freedom to embrace your whole self: who you love, your gender identity and expression, skin color, age, appearance, disability, neurodiversity, DNA, military/veteran status, citizenship, and other factors that make up who you are. Your uniqueness is valued, welcomed, and appreciated here. We are dedicated to providing a positive workplace and base all employment decisions on your qualifications, performance, merits, as well as business needs. We are proud to be an Equal Employment Opportunity Employer. Contact Information If this opportunity interests you and you fit the job description, please submit an application. If you need assistance or an accommodation due to disability, please feel free to contact us at hr@coldquanta.com.

The Senior Electrical Engineer will manage engineering projects and develop analog circuits for quantum systems and sensors. This role includes collaboration with various engineering disciplines to ensure successful project delivery. | Candidates must have a bachelor's degree in electrical engineering and at least four years of experience in low noise analog circuit designs. Proficiency in circuit simulation and a good understanding of circuit noise analysis are also required. | Infleqtion is a global quantum technology company solving the world’s most challenging problems. The company harnesses quantum mechanics to build and integrate quantum computers, sensors, and networks. From fundamental physics to leading edge commercial products, Infleqtion enables “quantum everywhere” through our ecosystem of devices and platforms. Position Summary We are seeking a Senior Electrical Engineer specializing in analog and mixed signal designs to join our Emerging Technology team. This individual will be a key contributor in the electrical design, integration, test, and qualification of custom circuits and control system subsystems for operation of deployed quantum systems and sensors in space, terrestrial, and lab-based environments. Initially, this role will be in support of a technology demonstration mission in collaboration with NASA JPL/Goddard that will demonstrate a first-of-its-kind quantum gravity gradient (QGG) sensor on a dedicated satellite. The successful candidate will collaborate with an extended team of electrical engineers, physicists, mechanical engineers, embedded systems engineers, systems engineers, and sub vendors to develop high performance, low noise, radiation tolerant and robust circuits critical to the operation of this exciting new quantum sensing capability demonstrator. Key Responsibilities Manage engineering projects and deliver them on time Develop analog circuits, including design, schematic capture, PCB layout, prototyping build, test, validation, and troubleshooting Design, model, and simulate analog circuits and validate circuit performance through bench testing Preferred focus on low noise and low drift circuit design Design control loops in the analog and digital domains Collaborate with engineers, physicists, and technicians to troubleshoot, debug, and rework existing circuit boards in use Perform quality and performance analysis on new and legacy electrical systems Work with other engineering disciplines on electrical, mechanical, and thermal interface requirements and design Manage and mentor peers and more junior team members to ensure project success Summarize data and report on test results Providing estimates of resources needed to deliver successful projects on schedule and budget Communicating with key stakeholders on progress, barriers, and status Other duties or projects as assigned to ensure mission success About the Team You’ll join a passionate and experienced team developing one of the world's first space-deployable quantum gravity sensors. This effort is foundational to future navigation, earth science, and resource exploration missions. Travel Up to 10% local travel may be required. Minimum Qualifications Bachelor's degree in electrical engineering At least four years of experience in low noise analog circuit designs and analog to digital mixed-signal designs Working knowledge of OrCAD, Altium, PADS, etc. Experience in circuit simulation using SPICE software A good understanding of circuit noise analysis and analog circuit analysis, as well as signal-integrity, power integrity and EMI/EMC requirements Experience with component derating and PCB-level thermal mitigation Ability to work safely with high voltage and/or high current circuits and test equipment Proficient in MS Office Good verbal and written communication skills, able to effectively share information with technical and non-technical staff Good collaboration skills, able to work in a team environment where engagement and participation are an expected part of successful job performance This position may require access to information protected under U.S. export control laws and regulations, including the Export Administration Regulations (EAR) and the International Traffic in Arms Regulations (ITAR). Please note that any offer for employment may be conditioned on authorization to receive software or technology controlled under these U.S. export control laws and regulations without sponsorship for an export license Preferred Qualifications Experience with space-deployed systems and the associated challenging vibration, thermal, and radiation environment Experience in power electronics or RF Working knowledge of control systems and signal processing Experience with high and ultra-high vacuum system environments Experience with Contract Electronic Manufacturing Experience mentoring and managing more junior engineers Experience with power electronics including DC-DC converters, filters, and high power (<1kW) amplifiers Working Conditions and Physical Requirements This position may require access to information protected under U.S. export control laws and regulations, including the Export Administration Regulations (EAR) and the International Traffic in Arms Regulations (ITAR). Please note that any offer for employment may be conditioned on authorization to receive software or technology controlled under these U.S. export control laws and regulations without sponsorship for an export license Work will normally be performed in an office and laboratory environment and around technical equipment including computers and lasers. Able to sit, stand, bend, lift and carry up to 40 pounds without assistance. Able to efficiently use automated office equipment such as laptops, copiers, and printers; able to effectively engage in communications (via phone, computer, or in-person). Any required Personal Protective Equipment will be provided and must be properly used in accordance with company requirements. The targeted salary range for this role is 120,000 to 150,000 USD on an annualized basis plus eligibility to participate in our annual incentive plan. In addition to your base compensation, we offer a generous Total Rewards program which includes: 100% company paid Employee coverage for Medical, Dental, Vision, and Short/Long Term Disability insurance programs Employer funded Health Savings Account Unlimited Paid Time Off 401(k) Matching Programs Company paid Life and AD&D Insurance Flexible Healthcare Savings Account Paid FMLA Leave Paid Maternity/Paternity Leave Employer Assistance Program Student Loan Repayment Equity Opportunity

Lead a team of software developers and DevOps engineers to build control system software for quantum computers. Develop and execute a technical roadmap for software deliverables while maintaining high standards in software development processes. | Candidates must have a bachelor's degree in a relevant field and at least 8 years of experience, with a strong background in software engineering and leadership in a deep-tech startup environment. Expertise in Python, systems engineering principles, and experience with Linux and containerization technologies are essential. | Infleqtion is on a mission to commercialize atom-based quantum technologies that deliver orders-of-magnitude improvements in sensing and computing applications. We are seeking self-motivated, energetic individuals with exceptional problem-solving and technical skills to help drive our Quantum Computing mission forward. At Infleqtion we embrace a startup mentality driven by results, urgency, and customer-focused innovation: We break down barriers between disciplines, stepping in wherever we can make the biggest impact. We thrive in uncertainty, embracing challenges as opportunities. We move quickly to prototype while never losing sight of the critical importance of systems engineering process and attention to detail. We take bold, calculated risks to drive progress. We are seeking a Director of Software Engineering to lead the team building the control system software for Infleqtion’s quantum computers. The ideal candidate brings strong expertise in designing and delivering robust and scalable software services, along with proven experience leading software teams in developing those services. Your vision will chart the course for innovation, setting the technical direction and architectural foundation of our software systems. Job Responsibilities The duties and responsibilities outlined below include essential functions of the role. Depending on business needs, this role may perform a combination of some or all of the following duties. Duties, responsibilities, and activities may change, or new ones may be assigned at any time. Manage, develop, build, and lead a team of software developers & DevOps engineers. Mentor and guide direct reports, fostering their growth and enhancing the team's technical expertise Develop, communicate, and enforce software development standards and processes Maintain a comprehensive understanding of the Infleqtion quantum computing software systems, their operational principles, their requirements, the broad technical stack, etc.; architect and design control system software; hands-on application of deep subject matter expertise in building software systems In collaboration with programmatic leadership and adjacent engineering disciplines, develop and execute a technical roadmap for software deliverables across the control stack to support given high-level quantum computing performance targets and system deliverables Communicate software feature roadmaps and resource needs between the control software team, adjacent stakeholders, and executive management Bachelor's degree in Computer Science, Applied Mathematics, Physics or related field and a minimum of 8 years prior work experience Demonstrated success in a technical leadership role in a deep-tech startup environment Deep expertise in Python and at least one compiled language, with enthusiasm for learning and developing in Rust Command of systems engineering principles and their application to requirements-driven software engineering Extensive experience with Linux and modern containerization and virtualization technologies Comfortable working with hardware and embedded engineers to architect, design, and build high performance, real time control systems Excellent verbal and written communication skills, able to effectively share information with technical and non-technical staff and external parties Eagerness to expand knowledge beyond core area of expertise Experience with industry standard Dev Ops workflows Experience with modern development methodologies such as agile and scrum Preferred Experience PhD in relevant technical area (computer science, physics, etc) Domain expertise in quantum information science; demonstrated success in a technical leadership role in the quantum field Experience managing software engineering teams Experience leading aspects of product development with highly complex dependencies in system and project plan Experience with Numpy, Scipy, and GPU acceleration libraries Experience optimizing Python packages using C or Rust extensions Familiarity with quantum error correction and its implied requirements for control software and hardware elements Experience with databases (relational and non-relational) including but not limited to timeseries data, SQL, and ETL processes Location: Boulder, CO; Chicago, IL; or Madison, WI This position may require access to information protected under U.S. export control laws and regulations, including the Export Administration Regulations (EAR) and the International Traffic in Arms Regulations (ITAR). Please note that any offer for employment may be conditioned on authorization to receive software or technology controlled under these U.S. export control laws and regulations without sponsorship for an export license. The targeted salary range for this role is $175,000 to $220,000 on an annualized basis plus eligibility to participate in our annual incentive plan. In addition to your base compensation, we offer a generous Total Rewards program which includes: 100% company paid Employee coverage for Medical, Dental, Vision, and Short/Long Term Disability insurance programs Employer funded Health Savings Account Unlimited Paid Time Off Relocation assistance 401(k) Matching Programs Company paid Life and AD&D Insurance Flexible Healthcare Savings Account Paid FMLA Leave Paid Maternity/Paternity Leave Employer Assistance Program Student Loan Repayment Equal Opportunity Here you have freedom to embrace your whole self: who you love, your gender identity and expression, skin color, age, appearance, disability, neurodiversity, DNA, military/veteran status, citizenship, and other factors that make up who you are. Your uniqueness is valued, welcomed, and appreciated here. We are dedicated to providing a positive workplace and base all employment decisions on your qualifications, performance, merits, as well as business needs. We are proud to be an Equal Employment Opportunity Employer.

Manage and lead a team of software developers and DevOps engineers while developing and enforcing software development standards. Collaborate with leadership to create a technical roadmap for software deliverables supporting quantum computing performance targets. | A bachelor's degree in a relevant field and a minimum of 8 years of experience are required. The ideal candidate should have deep expertise in Python, experience in technical leadership, and familiarity with systems engineering principles. | Infleqtion is on a mission to commercialize atom-based quantum technologies that deliver orders-of-magnitude improvements in sensing and computing applications. We are seeking self-motivated, energetic individuals with exceptional problem-solving and technical skills to help drive our Quantum Computing mission forward. At Infleqtion we embrace a startup mentality driven by results, urgency, and customer-focused innovation: We break down barriers between disciplines, stepping in wherever we can make the biggest impact. We thrive in uncertainty, embracing challenges as opportunities. We move quickly to prototype while never losing sight of the critical importance of systems engineering process and attention to detail. We take bold, calculated risks to drive progress. We are seeking a Director of Software Engineering to lead the team building the control system software for Infleqtion’s quantum computers. The ideal candidate brings strong expertise in designing and delivering robust and scalable software services, along with proven experience leading software teams in developing those services. Your vision will chart the course for innovation, setting the technical direction and architectural foundation of our software systems. Job Responsibilities The duties and responsibilities outlined below include essential functions of the role. Depending on business needs, this role may perform a combination of some or all of the following duties. Duties, responsibilities, and activities may change, or new ones may be assigned at any time. Manage, develop, build, and lead a team of software developers & DevOps engineers. Mentor and guide direct reports, fostering their growth and enhancing the team's technical expertise Develop, communicate, and enforce software development standards and processes Maintain a comprehensive understanding of the Infleqtion quantum computing software systems, their operational principles, their requirements, the broad technical stack, etc.; architect and design control system software; hands-on application of deep subject matter expertise in building software systems In collaboration with programmatic leadership and adjacent engineering disciplines, develop and execute a technical roadmap for software deliverables across the control stack to support given high-level quantum computing performance targets and system deliverables Communicate software feature roadmaps and resource needs between the control software team, adjacent stakeholders, and executive management Bachelor's degree in Computer Science, Applied Mathematics, Physics or related field and a minimum of 8 years prior work experience Demonstrated success in a technical leadership role in a deep-tech startup environment Deep expertise in Python and at least one compiled language, with enthusiasm for learning and developing in Rust Command of systems engineering principles and their application to requirements-driven software engineering Extensive experience with Linux and modern containerization and virtualization technologies Comfortable working with hardware and embedded engineers to architect, design, and build high performance, real time control systems Excellent verbal and written communication skills, able to effectively share information with technical and non-technical staff and external parties Eagerness to expand knowledge beyond core area of expertise Experience with industry standard Dev Ops workflows Experience with modern development methodologies such as agile and scrum Preferred Experience PhD in relevant technical area (computer science, physics, etc) Domain expertise in quantum information science; demonstrated success in a technical leadership role in the quantum field Experience managing software engineering teams Experience leading aspects of product development with highly complex dependencies in system and project plan Experience with Numpy, Scipy, and GPU acceleration libraries Experience optimizing Python packages using C or Rust extensions Familiarity with quantum error correction and its implied requirements for control software and hardware elements Experience with databases (relational and non-relational) including but not limited to timeseries data, SQL, and ETL processes Location: Boulder, CO; Chicago, IL; or Madison, WI This position may require access to information protected under U.S. export control laws and regulations, including the Export Administration Regulations (EAR) and the International Traffic in Arms Regulations (ITAR). Please note that any offer for employment may be conditioned on authorization to receive software or technology controlled under these U.S. export control laws and regulations without sponsorship for an export license. The targeted salary range for this role is $175,000 to $220,000 on an annualized basis plus eligibility to participate in our annual incentive plan. In addition to your base compensation, we offer a generous Total Rewards program which includes: 100% company paid Employee coverage for Medical, Dental, Vision, and Short/Long Term Disability insurance programs Employer funded Health Savings Account Unlimited Paid Time Off Relocation assistance 401(k) Matching Programs Company paid Life and AD&D Insurance Flexible Healthcare Savings Account Paid FMLA Leave Paid Maternity/Paternity Leave Employer Assistance Program Student Loan Repayment Equal Opportunity Here you have freedom to embrace your whole self: who you love, your gender identity and expression, skin color, age, appearance, disability, neurodiversity, DNA, military/veteran status, citizenship, and other factors that make up who you are. Your uniqueness is valued, welcomed, and appreciated here. We are dedicated to providing a positive workplace and base all employment decisions on your qualifications, performance, merits, as well as business needs. We are proud to be an Equal Employment Opportunity Employer.

Lead and develop scalable backend services and control systems for quantum computers while managing a small team and collaborating with interdisciplinary engineers. | 5+ years experience, bachelor's degree in related field, strong Python and compiled language skills, leadership experience, Linux and Docker familiarity, and ability to work with hardware engineers. | Infleqtion is on a mission to commercialize atom-based quantum technologies that deliver orders-of-magnitude improvements in sensing and computing applications. We are seeking self-motivated, energetic individuals with exceptional problem-solving and technical skills to help drive our Quantum Computing mission forward. At Infleqtion we embrace a startup mentality driven by results, urgency, and customer-focused innovation: We break down barriers between disciplines, stepping in wherever we can make the biggest impact. We thrive in uncertainty, embracing challenges as opportunities. We move quickly to prototype while never losing sight of the critical importance of systems engineering process and attention to detail. We take bold, calculated risks to drive progress. We are seeking a Software Technical Lead to join the team building the control system software for Infleqtion’s quantum computers as both an individual contributor and manager for a handful of other engineers on the team. The ideal candidate is an experienced backend engineer with a strong background in creating robust and scalable scientific applications who also has an interest in people management to help their team-mates achieve their potential. You will play a crucial leadership role in designing, building, and maintaining backend services and control systems that drive our neutral atom quantum processors. JOB RESPONSIBILITIES The duties and responsibilities outlined below include essential functions of the role. Depending on business needs, this role may perform a combination of some or all of the following duties. Duties, responsibilities, and activities may change, or new ones may be assigned at any time. Design, develop, and deploy reliable, maintainable, scalable, and fault-tolerant backend services and frameworks that control and calibrate our neutral atom quantum computers. Mentor and guide software engineers as direct reports, fostering their growth and enhancing the team's technical expertise. Lead code and design reviews, upholding engineering best practices and promoting a culture of quality and collaboration. Collaborate with interdisciplinary teams, including scientists, opto-mechanical engineers, and electrical engineers, to solve complex problems and deliver high-quality software solutions. Empower interdisciplinary teams to create the tools they need by teaching engineering and programming best practices. Support and debug all layers of the control stack from real-time embedded kernels to distributed services. Advocate for and implement innovative software development methodologies and tools to improve team efficiency and product quality. Bachelor's degree in Computer Science, Applied Mathematics, Physics or related field and a minimum of 5 years prior work experience Experience with Python and at least one compiled language, with a desire to learn and work in Rust Desire to manage a handful of software engineers and software engineering projects Comfortable working with hardware and embedded engineers to design and build high performance, real-time control systems Experience with Linux and virtualization technologies like Docker Good verbal and written communication skills, able to effectively share information with technical and non-technical staff Good collaboration skills, able to work in a team environment where engagement and participation are an expected part of successful job performance Skilled in typical software engineering disciplines: testing, debugging, revision control, error-handling, readability, documentation, general code health, etc.; familiar with industry standard Dev Ops workflows Desire to constantly improve and learn inside and outside of expertise PREFERRED EXPERIENCE: Experience managing software engineers and software engineering projects Experience with Numpy, Scipy, Pytorch, and QPU-acceleration libraries Experience with image analysis, emphasis on realtime object detection Experience with databases (relational and non-relational) including but not limited to timeseries data, SQL, and ETL processes Experience creating CI/CD pipelines, and Python package creation with C or Rust extensions Location: Boulder, CO; Chicago, IL; or Madison, WI This position may require access to information protected under U.S. export control laws and regulations, including the Export Administration Regulations (EAR) and the International Traffic in Arms Regulations (ITAR). Please note that any offer for employment may be conditioned on authorization to receive software or technology controlled under these U.S. export control laws and regulations without sponsorship for an export license. The targeted salary range for this role is $155,000 to $185,000 on an annualized basis plus eligibility to participate in our annual incentive plan. In addition to your base compensation, we offer a generous Total Rewards program which includes: 100% company paid Employee coverage for Medical, Dental, Vision, and Short/Long Term Disability insurance programs Employer funded Health Savings Account Unlimited Paid Time Off Relocation assistance 401(k) Matching Programs Company paid Life and AD&D Insurance Flexible Healthcare Savings Account Paid FMLA Leave Paid Maternity/Paternity Leave Employer Assistance Program Student Loan Repayment Equal Opportunity Here you have freedom to embrace your whole self: who you love, your gender identity and expression, skin color, age, appearance, disability, neurodiversity, DNA, military/veteran status, citizenship, and other factors that make up who you are. Your uniqueness is valued, welcomed, and appreciated here. We are dedicated to providing a positive workplace and base all employment decisions on your qualifications, performance, merits, as well as business needs. We are proud to be an Equal Employment Opportunity Employer.

Design, develop, and deploy backend services for quantum computers while mentoring software engineers. Collaborate with interdisciplinary teams to deliver high-quality software solutions. | Bachelor's degree in a relevant field and a minimum of 5 years of experience are required. Candidates should have experience with Python, backend engineering, and a desire to manage software engineering projects. | Infleqtion is on a mission to commercialize atom-based quantum technologies that deliver orders-of-magnitude improvements in sensing and computing applications. We are seeking self-motivated, energetic individuals with exceptional problem-solving and technical skills to help drive our Quantum Computing mission forward. At Infleqtion we embrace a startup mentality driven by results, urgency, and customer-focused innovation: We break down barriers between disciplines, stepping in wherever we can make the biggest impact. We thrive in uncertainty, embracing challenges as opportunities. We move quickly to prototype while never losing sight of the critical importance of systems engineering process and attention to detail. We take bold, calculated risks to drive progress. We are seeking a Software Technical Lead to join the team building the control system software for Infleqtion’s quantum computers as both an individual contributor and manager for a handful of other engineers on the team. The ideal candidate is an experienced backend engineer with a strong background in creating robust and scalable scientific applications who also has an interest in people management to help their team-mates achieve their potential. You will play a crucial leadership role in designing, building, and maintaining backend services and control systems that drive our neutral atom quantum processors. JOB RESPONSIBILITIES The duties and responsibilities outlined below include essential functions of the role. Depending on business needs, this role may perform a combination of some or all of the following duties. Duties, responsibilities, and activities may change, or new ones may be assigned at any time. Design, develop, and deploy reliable, maintainable, scalable, and fault-tolerant backend services and frameworks that control and calibrate our neutral atom quantum computers. Mentor and guide software engineers as direct reports, fostering their growth and enhancing the team's technical expertise. Lead code and design reviews, upholding engineering best practices and promoting a culture of quality and collaboration. Collaborate with interdisciplinary teams, including scientists, opto-mechanical engineers, and electrical engineers, to solve complex problems and deliver high-quality software solutions. Empower interdisciplinary teams to create the tools they need by teaching engineering and programming best practices. Support and debug all layers of the control stack from real-time embedded kernels to distributed services. Advocate for and implement innovative software development methodologies and tools to improve team efficiency and product quality. Bachelor's degree in Computer Science, Applied Mathematics, Physics or related field and a minimum of 5 years prior work experience Experience with Python and at least one compiled language, with a desire to learn and work in Rust Desire to manage a handful of software engineers and software engineering projects Comfortable working with hardware and embedded engineers to design and build high performance, real-time control systems Experience with Linux and virtualization technologies like Docker Good verbal and written communication skills, able to effectively share information with technical and non-technical staff Good collaboration skills, able to work in a team environment where engagement and participation are an expected part of successful job performance Skilled in typical software engineering disciplines: testing, debugging, revision control, error-handling, readability, documentation, general code health, etc.; familiar with industry standard Dev Ops workflows Desire to constantly improve and learn inside and outside of expertise PREFERRED EXPERIENCE: Experience managing software engineers and software engineering projects Experience with Numpy, Scipy, Pytorch, and QPU-acceleration libraries Experience with image analysis, emphasis on realtime object detection Experience with databases (relational and non-relational) including but not limited to timeseries data, SQL, and ETL processes Experience creating CI/CD pipelines, and Python package creation with C or Rust extensions Location: Boulder, CO; Chicago, IL; or Madison, WI This position may require access to information protected under U.S. export control laws and regulations, including the Export Administration Regulations (EAR) and the International Traffic in Arms Regulations (ITAR). Please note that any offer for employment may be conditioned on authorization to receive software or technology controlled under these U.S. export control laws and regulations without sponsorship for an export license. The targeted salary range for this role is $155,000 to $185,000 on an annualized basis plus eligibility to participate in our annual incentive plan. In addition to your base compensation, we offer a generous Total Rewards program which includes: 100% company paid Employee coverage for Medical, Dental, Vision, and Short/Long Term Disability insurance programs Employer funded Health Savings Account Unlimited Paid Time Off Relocation assistance 401(k) Matching Programs Company paid Life and AD&D Insurance Flexible Healthcare Savings Account Paid FMLA Leave Paid Maternity/Paternity Leave Employer Assistance Program Student Loan Repayment Equal Opportunity Here you have freedom to embrace your whole self: who you love, your gender identity and expression, skin color, age, appearance, disability, neurodiversity, DNA, military/veteran status, citizenship, and other factors that make up who you are. Your uniqueness is valued, welcomed, and appreciated here. We are dedicated to providing a positive workplace and base all employment decisions on your qualifications, performance, merits, as well as business needs. We are proud to be an Equal Employment Opportunity Employer.

Design, develop, and deploy backend services and frameworks for quantum computers. Collaborate with interdisciplinary teams to deliver high-quality software solutions. | Bachelor's degree in a relevant field and a minimum of 5 years of experience required. Strong background in backend engineering and scientific applications is essential. | Infleqtion is on a mission to commercialize atom-based quantum technologies that deliver orders-of-magnitude improvements in sensing and computing applications. We are seeking self-motivated, energetic individuals with exceptional problem-solving and technical skills to help drive our Quantum Computing mission forward. At Infleqtion we embrace a startup mentality driven by results, urgency, and customer-focused innovation: We break down barriers between disciplines, stepping in wherever we can make the biggest impact. We thrive in uncertainty, embracing challenges as opportunities. We move quickly to prototype while never losing sight of the critical importance of systems engineering process and attention to detail. We take bold, calculated risks to drive progress. We are seeking a Senior Software Engineer to join the team building the control system software for Infleqtion’s quantum computers. The ideal candidate is an experienced backend engineer with a strong background in creating robust and scalable scientific applications. You will play a crucial role in designing, building, and maintaining backend services and control systems that drive our neutral atom quantum machines. JOB RESPONSIBILITIES The duties and responsibilities outlined below include essential functions of the role. Depending on business needs, this role may perform a combination of some or all of the following duties. Duties, responsibilities, and activities may change, or new ones may be assigned at any time. Design, develop, and deploy reliable, maintainable, scalable, and fault-tolerant backend services and frameworks that control and calibrate our neutral atom quantum computers. Collaborate with interdisciplinary teams, including scientists, opto-mechanical engineers, and electrical engineers, to solve complex problems and deliver high-quality software solutions. Empower interdisciplinary teams to create the tools they need by teaching engineering and programming best practices. Mentor and guide junior engineers, fostering their growth and enhancing the team's technical expertise. Lead code and design reviews, upholding engineering best practices and promoting a culture of quality and collaboration. Support and debug all layers of the control stack from real-time embedded kernels to distributed services. Advocate for and implement innovative software development methodologies and tools to improve team efficiency and product quality. Bachelor's degree in Computer Science, Applied Mathematics, Physics or related field and a minimum of 5 years prior work experience Experience with Python and at least one compiled language, with a desire to learn and work in Rust Experience with Linux and virtualization technologies like Docker Good verbal and written communication skills, able to effectively share information with technical and non-technical staff Good collaboration skills, able to work in a team environment where engagement and participation are an expected part of successful job performance Skilled in typical software engineering disciplines: testing, debugging, revision control, error-handling, readability, documentation, general code health, etc. Desire to constantly improve and learn inside and outside of expertise PREFERRED EXPERIENCE: Domain-specific experience in statistics, machine learning, or AMO physics Experience with Numpy, Scipy, and Pytorch Experience with image analysis, emphasis on realtime object detection Experience with databases (relational and non-relational) including but not limited to timeseries data, SQL, and ETL processes Experience creating CI/CD pipelines, and Python package creation with C or Rust extensions The targeted salary range for this role is $106,000 to $141,000 on an annualized basis plus eligibility to participate in our annual incentive plan. In addition to your base compensation, we offer a generous Total Rewards program which includes: 100% company paid Employee coverage for Medical, Dental, Vision, and Short/Long Term Disability insurance programs Employer funded Health Savings Account Unlimited Paid Time Off 401(k) Matching Programs Company paid Life and AD&D Insurance Flexible Healthcare Savings Account Paid FMLA Leave Paid Maternity/Paternity Leave Employer Assistance Program Student Loan Repayment Equal Opportunity Here you have freedom to embrace your whole self: who you love, your gender identity and expression, skin color, age, appearance, disability, neurodiversity, DNA, military/veteran status, citizenship, and other factors that make up who you are. Your uniqueness is valued, welcomed, and appreciated here. We are dedicated to providing a positive workplace and base all employment decisions on your qualifications, performance, merits, as well as business needs. We are proud to be an Equal Employment Opportunity Employer.

The role involves collaborating with physicists and engineers to develop embedded software solutions for quantum applications. Responsibilities include developing reliable software, supporting tuning and troubleshooting, and participating in design and code reviews. | Candidates must have a bachelor's degree in engineering or computer science and at least 8 years of experience. Proficiency in Rust or compiled languages like C/C++, along with knowledge of embedded Linux development, is required. | Infleqtion is on a mission to commercialize atom-based quantum technologies that deliver orders-of-magnitude improvements in sensing and computing applications. As a deep-tech startup, we embrace a results-driven, fast-paced, and customer-focused approach to innovation. We are seeking self-motivated, energetic individuals with exceptional problem-solving and technical skills to help drive our Quantum Computing mission forward. We encourage applications from engineers with expertise in real-time embedded software applications, particularly those with experience in precision, high-performance, control systems. At Infleqtion we embrace a startup mentality driven by results, urgency, and customer-focused innovation: We break down barriers between disciplines, stepping in wherever we can make the biggest impact. We thrive in uncertainty, embracing challenges as opportunities. We move quickly to prototype while never losing sight of the critical importance of systems engineering process and attention to detail. We take bold, calculated risks to drive progress. JOB RESPONSIBILITIES The duties and responsibilities outlined below include essential functions of the role. Depending on business needs, this role may perform a combination of some or all of the following duties. Duties, responsibilities, and activities may change, or new ones may be assigned at any time with or without notice. Collaborate with physicists and across electrical, software, and opto-mechanical engineering domains to deliver optimal embedded software solutions for quantum applications Develop reliable and robust embedded software that leverages high test coverage and CI pipelines to facilitate smooth collaboration with peers and deploy with confidence Support hands on tuning and troubleshooting in laboratory and test bench environments Build thorough documentation and mathematical models to demonstrate that algorithms, approaches, and signal processing technique meet critical architecture requirements Participate in design, code, and data reviews Bachelor's degree in engineering, computer science or related field and a minimum of 8 years prior work experience. Experience with Rust or experience with compiled languages (C/C++) and desire to learn and work in Rust Experience with interpreting datasheets and schematics Knowledge of Embedded Linux development in user and kernel space Good verbal and written communication skills, able to effectively share information with technical and non-technical staff Good collaboration skills, able to work in a team environment where engagement and participation are an expected part of successful job performance Skilled in typical software engineering disciplines: testing, revision control, error-handling, readability, documentation, general code health, etc. Desire to constantly improve and learn inside and outside of expertise PREFERRED EXPERIENCE: Developing for programmable logic targets (especially Xilinx Zynq MPSOC) Comfort with low-level development on several processor architectures (ARM Cortex, ARM Application, RISC-V, etc.) Embedded Linux OS distribution builds (nix, Yocto, or Buildroot) High-performance real time development (bare metal / RTOS) Familiarity with common electrical test equipment like oscilloscopes and spectrum analyzers Familiarity with programmable logic / FPGAs and working with hardware descriptive languages Control system architecture and design The targeted salary range for this role is $131,000 to $175,000 on an annualized basis plus eligibility to participate in our annual incentive plan. In addition to your base compensation, we offer a generous Total Rewards program which includes: 100% company paid Employee coverage for Medical, Dental, Vision, and Short/Long Term Disability insurance programs Employer funded Health Savings Account Unlimited Paid Time Off 401(k) Matching Programs Company paid Life and AD&D Insurance Flexible Healthcare Savings Account Paid FMLA Leave Paid Maternity/Paternity Leave Employer Assistance Program Student Loan Repayment Equal Opportunity Here you have freedom to embrace your whole self: who you love, your gender identity and expression, skin color, age, appearance, disability, neurodiversity, DNA, military/veteran status, citizenship, and other factors that make up who you are. Your uniqueness is valued, welcomed, and appreciated here. We are dedicated to providing a positive workplace and base all employment decisions on your qualifications, performance, merits, as well as business needs. We are proud to be an Equal Employment Opportunity Employer. Contact Information If this opportunity interests you and you fit the job description, please submit an application. If you need assistance or an accommodation due to disability, please feel free to contact us at hr@coldquanta.com.

Design, build, and maintain scalable backend services and control systems for quantum computers while managing and mentoring a small engineering team. | 5+ years experience, bachelor's degree in CS or related, Python and compiled language skills, management experience, Linux and Docker familiarity, and collaboration with hardware teams. | Infleqtion is on a mission to commercialize atom-based quantum technologies that deliver orders-of-magnitude improvements in sensing and computing applications. We are seeking self-motivated, energetic individuals with exceptional problem-solving and technical skills to help drive our Quantum Computing mission forward. At Infleqtion we embrace a startup mentality driven by results, urgency, and customer-focused innovation: We break down barriers between disciplines, stepping in wherever we can make the biggest impact. We thrive in uncertainty, embracing challenges as opportunities. We move quickly to prototype while never losing sight of the critical importance of systems engineering process and attention to detail. We take bold, calculated risks to drive progress. We are seeking a Software Technical Lead to join the team building the control system software for Infleqtion’s quantum computers as both an individual contributor and manager for a handful of other engineers on the team. The ideal candidate is an experienced backend engineer with a strong background in creating robust and scalable scientific applications who also has an interest in people management to help their team-mates achieve their potential. You will play a crucial leadership role in designing, building, and maintaining backend services and control systems that drive our neutral atom quantum processors. JOB RESPONSIBILITIES The duties and responsibilities outlined below include essential functions of the role. Depending on business needs, this role may perform a combination of some or all of the following duties. Duties, responsibilities, and activities may change, or new ones may be assigned at any time. Design, develop, and deploy reliable, maintainable, scalable, and fault-tolerant backend services and frameworks that control and calibrate our neutral atom quantum computers. Mentor and guide software engineers as direct reports, fostering their growth and enhancing the team's technical expertise. Lead code and design reviews, upholding engineering best practices and promoting a culture of quality and collaboration. Collaborate with interdisciplinary teams, including scientists, opto-mechanical engineers, and electrical engineers, to solve complex problems and deliver high-quality software solutions. Empower interdisciplinary teams to create the tools they need by teaching engineering and programming best practices. Support and debug all layers of the control stack from real-time embedded kernels to distributed services. Advocate for and implement innovative software development methodologies and tools to improve team efficiency and product quality. Bachelor's degree in Computer Science, Applied Mathematics, Physics or related field and a minimum of 5 years prior work experience Experience with Python and at least one compiled language, with a desire to learn and work in Rust Desire to manage a handful of software engineers and software engineering projects Comfortable working with hardware and embedded engineers to design and build high performance, real-time control systems Experience with Linux and virtualization technologies like Docker Good verbal and written communication skills, able to effectively share information with technical and non-technical staff Good collaboration skills, able to work in a team environment where engagement and participation are an expected part of successful job performance Skilled in typical software engineering disciplines: testing, debugging, revision control, error-handling, readability, documentation, general code health, etc.; familiar with industry standard Dev Ops workflows Desire to constantly improve and learn inside and outside of expertise PREFERRED EXPERIENCE: Experience managing software engineers and software engineering projects Experience with Numpy, Scipy, Pytorch, and QPU-acceleration libraries Experience with image analysis, emphasis on realtime object detection Experience with databases (relational and non-relational) including but not limited to timeseries data, SQL, and ETL processes Experience creating CI/CD pipelines, and Python package creation with C or Rust extensions Location: Boulder, CO; Chicago, IL; or Madison, WI This position may require access to information protected under U.S. export control laws and regulations, including the Export Administration Regulations (EAR) and the International Traffic in Arms Regulations (ITAR). Please note that any offer for employment may be conditioned on authorization to receive software or technology controlled under these U.S. export control laws and regulations without sponsorship for an export license. The targeted salary range for this role is $155,000 to $185,000 on an annualized basis plus eligibility to participate in our annual incentive plan. In addition to your base compensation, we offer a generous Total Rewards program which includes: 100% company paid Employee coverage for Medical, Dental, Vision, and Short/Long Term Disability insurance programs Employer funded Health Savings Account Unlimited Paid Time Off Relocation assistance 401(k) Matching Programs Company paid Life and AD&D Insurance Flexible Healthcare Savings Account Paid FMLA Leave Paid Maternity/Paternity Leave Employer Assistance Program Student Loan Repayment Equal Opportunity Here you have freedom to embrace your whole self: who you love, your gender identity and expression, skin color, age, appearance, disability, neurodiversity, DNA, military/veteran status, citizenship, and other factors that make up who you are. Your uniqueness is valued, welcomed, and appreciated here. We are dedicated to providing a positive workplace and base all employment decisions on your qualifications, performance, merits, as well as business needs. We are proud to be an Equal Employment Opportunity Employer.

Lead and manage a software engineering team to design and deliver control system software for quantum computers, set technical direction, and collaborate across disciplines. | 8+ years experience with technical leadership, expertise in Python and compiled languages (Rust preferred), systems engineering, Linux, containerization, DevOps, and experience working with hardware/embedded engineers. | Infleqtion is on a mission to commercialize atom-based quantum technologies that deliver orders-of-magnitude improvements in sensing and computing applications. We are seeking self-motivated, energetic individuals with exceptional problem-solving and technical skills to help drive our Quantum Computing mission forward. At Infleqtion we embrace a startup mentality driven by results, urgency, and customer-focused innovation: We break down barriers between disciplines, stepping in wherever we can make the biggest impact. We thrive in uncertainty, embracing challenges as opportunities. We move quickly to prototype while never losing sight of the critical importance of systems engineering process and attention to detail. We take bold, calculated risks to drive progress. We are seeking a Director of Software Engineering to lead the team building the control system software for Infleqtion’s quantum computers. The ideal candidate brings strong expertise in designing and delivering robust and scalable software services, along with proven experience leading software teams in developing those services. Your vision will chart the course for innovation, setting the technical direction and architectural foundation of our software systems. Job Responsibilities The duties and responsibilities outlined below include essential functions of the role. Depending on business needs, this role may perform a combination of some or all of the following duties. Duties, responsibilities, and activities may change, or new ones may be assigned at any time. Manage, develop, build, and lead a team of software developers & DevOps engineers. Mentor and guide direct reports, fostering their growth and enhancing the team's technical expertise Develop, communicate, and enforce software development standards and processes Maintain a comprehensive understanding of the Infleqtion quantum computing software systems, their operational principles, their requirements, the broad technical stack, etc.; architect and design control system software; hands-on application of deep subject matter expertise in building software systems In collaboration with programmatic leadership and adjacent engineering disciplines, develop and execute a technical roadmap for software deliverables across the control stack to support given high-level quantum computing performance targets and system deliverables Communicate software feature roadmaps and resource needs between the control software team, adjacent stakeholders, and executive management Bachelor's degree in Computer Science, Applied Mathematics, Physics or related field and a minimum of 8 years prior work experience Demonstrated success in a technical leadership role in a deep-tech startup environment Deep expertise in Python and at least one compiled language, with enthusiasm for learning and developing in Rust Command of systems engineering principles and their application to requirements-driven software engineering Extensive experience with Linux and modern containerization and virtualization technologies Comfortable working with hardware and embedded engineers to architect, design, and build high performance, real time control systems Excellent verbal and written communication skills, able to effectively share information with technical and non-technical staff and external parties Eagerness to expand knowledge beyond core area of expertise Experience with industry standard Dev Ops workflows Experience with modern development methodologies such as agile and scrum Preferred Experience PhD in relevant technical area (computer science, physics, etc) Domain expertise in quantum information science; demonstrated success in a technical leadership role in the quantum field Experience managing software engineering teams Experience leading aspects of product development with highly complex dependencies in system and project plan Experience with Numpy, Scipy, and GPU acceleration libraries Experience optimizing Python packages using C or Rust extensions Familiarity with quantum error correction and its implied requirements for control software and hardware elements Experience with databases (relational and non-relational) including but not limited to timeseries data, SQL, and ETL processes Location: Boulder, CO; Chicago, IL; or Madison, WI This position may require access to information protected under U.S. export control laws and regulations, including the Export Administration Regulations (EAR) and the International Traffic in Arms Regulations (ITAR). Please note that any offer for employment may be conditioned on authorization to receive software or technology controlled under these U.S. export control laws and regulations without sponsorship for an export license. The targeted salary range for this role is $175,000 to $220,000 on an annualized basis plus eligibility to participate in our annual incentive plan. In addition to your base compensation, we offer a generous Total Rewards program which includes: 100% company paid Employee coverage for Medical, Dental, Vision, and Short/Long Term Disability insurance programs Employer funded Health Savings Account Unlimited Paid Time Off Relocation assistance 401(k) Matching Programs Company paid Life and AD&D Insurance Flexible Healthcare Savings Account Paid FMLA Leave Paid Maternity/Paternity Leave Employer Assistance Program Student Loan Repayment Equal Opportunity Here you have freedom to embrace your whole self: who you love, your gender identity and expression, skin color, age, appearance, disability, neurodiversity, DNA, military/veteran status, citizenship, and other factors that make up who you are. Your uniqueness is valued, welcomed, and appreciated here. We are dedicated to providing a positive workplace and base all employment decisions on your qualifications, performance, merits, as well as business needs. We are proud to be an Equal Employment Opportunity Employer.

Lead and mentor a software engineering team to design, develop, and deliver control system software for quantum computers, setting technical direction and collaborating with cross-functional teams. | Bachelor's degree with 8+ years experience in technical leadership, expertise in Python and compiled languages, systems engineering, Linux, containerization, DevOps workflows, and agile methodologies, with preferred quantum computing domain knowledge and experience managing software teams. | Infleqtion is on a mission to commercialize atom-based quantum technologies that deliver orders-of-magnitude improvements in sensing and computing applications. We are seeking self-motivated, energetic individuals with exceptional problem-solving and technical skills to help drive our Quantum Computing mission forward. At Infleqtion we embrace a startup mentality driven by results, urgency, and customer-focused innovation: • We break down barriers between disciplines, stepping in wherever we can make the biggest impact. • We thrive in uncertainty, embracing challenges as opportunities. • We move quickly to prototype while never losing sight of the critical importance of systems engineering process and attention to detail. • We take bold, calculated risks to drive progress. We are seeking a Director of Software Engineering to lead the team building the control system software for Infleqtion’s quantum computers. The ideal candidate brings strong expertise in designing and delivering robust and scalable software services, along with proven experience leading software teams in developing those services. Your vision will chart the course for innovation, setting the technical direction and architectural foundation of our software systems. Job Responsibilities The duties and responsibilities outlined below include essential functions of the role. Depending on business needs, this role may perform a combination of some or all of the following duties. Duties, responsibilities, and activities may change, or new ones may be assigned at any time. • Manage, develop, build, and lead a team of software developers & DevOps engineers. Mentor and guide direct reports, fostering their growth and enhancing the team's technical expertise • Develop, communicate, and enforce software development standards and processes • Maintain a comprehensive understanding of the Infleqtion quantum computing software systems, their operational principles, their requirements, the broad technical stack, etc.; architect and design control system software; hands-on application of deep subject matter expertise in building software systems • In collaboration with programmatic leadership and adjacent engineering disciplines, develop and execute a technical roadmap for software deliverables across the control stack to support given high-level quantum computing performance targets and system deliverables • Communicate software feature roadmaps and resource needs between the control software team, adjacent stakeholders, and executive management Requirements • Bachelor's degree in Computer Science, Applied Mathematics, Physics or related field and a minimum of 8 years prior work experience • Demonstrated success in a technical leadership role in a deep-tech startup environment • Deep expertise in Python and at least one compiled language, with enthusiasm for learning and developing in Rust • Command of systems engineering principles and their application to requirements-driven software engineering • Extensive experience with Linux and modern containerization and virtualization technologies • Comfortable working with hardware and embedded engineers to architect, design, and build high performance, real time control systems • Excellent verbal and written communication skills, able to effectively share information with technical and non-technical staff and external parties • Eagerness to expand knowledge beyond core area of expertise • Experience with industry standard Dev Ops workflows • Experience with modern development methodologies such as agile and scrum Preferred Experience • PhD in relevant technical area (computer science, physics, etc) • Domain expertise in quantum information science; demonstrated success in a technical leadership role in the quantum field • Experience managing software engineering teams • Experience leading aspects of product development with highly complex dependencies in system and project plan • Experience with Numpy, Scipy, and GPU acceleration libraries • Experience optimizing Python packages using C or Rust extensions • Familiarity with quantum error correction and its implied requirements for control software and hardware elements • Experience with databases (relational and non-relational) including but not limited to timeseries data, SQL, and ETL processes Location: Boulder, CO; Chicago, IL; or Madison, WI This position may require access to information protected under U.S. export control laws and regulations, including the Export Administration Regulations (EAR) and the International Traffic in Arms Regulations (ITAR). Please note that any offer for employment may be conditioned on authorization to receive software or technology controlled under these U.S. export control laws and regulations without sponsorship for an export license. Benefits The targeted salary range for this role is $175,000 to $220,000 on an annualized basis plus eligibility to participate in our annual incentive plan. In addition to your base compensation, we offer a generous Total Rewards program which includes: • 100% company paid Employee coverage for Medical, Dental, Vision, and Short/Long Term Disability insurance programs • Employer funded Health Savings Account • Unlimited Paid Time Off • Relocation assistance • 401(k) Matching Programs • Company paid Life and AD&D Insurance • Flexible Healthcare Savings Account • Paid FMLA Leave • Paid Maternity/Paternity Leave • Employer Assistance Program • Student Loan Repayment Equal Opportunity Here you have freedom to embrace your whole self: who you love, your gender identity and expression, skin color, age, appearance, disability, neurodiversity, DNA, military/veteran status, citizenship, and other factors that make up who you are. Your uniqueness is valued, welcomed, and appreciated here. We are dedicated to providing a positive workplace and base all employment decisions on your qualifications, performance, merits, as well as business needs. We are proud to be an Equal Employment Opportunity Employer.

Lead planning, implementation, and maintenance of enterprise IT infrastructure including on-premises and cloud systems, ensuring reliability, security, and performance with hands-on systems and network administration. | Bachelor's degree and 7+ years of experience in systems/network administration and IT security with knowledge of cloud platforms, virtualization, networking, security frameworks, and project management. | Description Infleqtion is a global quantum technology company solving the world's most challenging problems. The company harnesses quantum mechanics to build and integrate quantum computers, sensors, and networks. From fundamental physics to leading edge commercial products, Infleqtion enables "quantum everywhere" through our ecosystem of devices and platforms. Location Infleqtion has 6 office locations, operating out of Boulder/Louisville, CO; Madison, WI; Chicago, IL; Oxford, UK; and Melbourne, AU. This position is a full-time, hybrid position which will be located in our Louisville, CO office. Position Summary Infleqtion is seeking a highly skilled and experienced IT Infrastructure Manager to lead the planning, implementation, and maintenance of our enterprise IT infrastructure. This role will oversee on-premises and cloud-based systems, ensuring reliability, scalability, security, and performance across all technology platforms. The successful candidate will operate with a security-first mindset and will be hands-on with critical systems administration and engineering tasks. Key Responsibilities • Infrastructure Management • Oversee the design, implementation, management, and maintenance of both on-premise and cloud infrastructure (servers, storage, network infrastructure, etc) • Manage enterprise backup and disaster recovery solutions • Ensure high availability and performance of mission-critical systems • Transform existing solutions and services into streamlined and standardized approaches • Systems and Network Administration • Perform systems administration activities, including management of Active Directory and Microsoft 365 tenants • Maintain appropriate and regular patch management cycles, system monitoring, and performance optimization tasks • Maintain robust identity and access management practices • Security and Compliance • Manage aspects of general IT security administration, including endpoint protection and monitoring • Remain up to date and informed of active threats in the cybersecurity landscape • Respond to and manage security incidents effectively • Collaboration and Support • Work closely with the IT Service Desk and DevOps teams to ensure seamless delivery of Infleqtion's IT services • Identify areas of opportunity and drive the implementation of intuitive solutions that demonstrate measurable improvements • Highly attentive to detail, including regular review and contribute to meticulous documentation Working Conditions And Physical Requirements This position may require access to information protected under U.S. export control laws and regulations, including the Export Administration Regulations (EAR) and the International Traffic in Arms Regulations (ITAR). Please note that any offer for employment may be conditioned on authorization to receive software or technology controlled under these U.S. export control laws and regulations without sponsorship for an export license. Work will normally be performed in an office and laboratory environment and around technical equipment including computers and lasers. Able to sit, stand, bend, lift and carry up to 40 pounds without assistance. Able to efficiently use automated office equipment such as laptops, copiers, and printers; able to effectively engage in communications (via phone, computer, or in-person). Any required Personal Protective Equipment will be provided and must be properly used in accordance with company requirements. Travel Up to 10% travel may be required Requirements Minimum Qualifications • Bachelor's degree in Computer Science, Information Technology, or related field • 7+ years of progressive experience in Systems Administration, Systems Engineering, Network Administration, Network Engineering, and IT Security Administration • Proven experience managing both on-premise and cloud-based infrastructure • Strong knowledge of: • Microsoft Windows and Linux operating systems • Virtualization technologies (VMware, Hyper-V, etc) • Cloud Platforms (Azure, AWS, GCP) • Networking topologies, protocols, and concepts (LAN, WAN, SDWAN, VPN, DHCP, DNS, LDAP, etc) • IT security frameworks and compliance standards (ISO, NIST, SOC, HIPAA, etc) • Demonstrated project management skills • Familiarity with ITIL or other service management frameworks • Exceptional organizational, problem-solving, and communication skills Preferred Qualifications • Mix of technical and management certifications, such as Azure/AWS/Google Cloud certifications, CompTIA Network+, CompTIA Security+, CCNA, CISSP, ITIL, Project Management Professional (PMP) Benefits We offer a generous Total Rewards program which includes: • 100% company paid Employee coverage for Medical, Dental, Vision, and Short/Long Term Disability insurance programs • Employer funded Health Savings Account • Unlimited Paid Time Off • 401(k) Matching Programs • Company paid Life and AD&D Insurance • Flexible Healthcare Savings Account • Paid FMLA Leave • Paid Maternity/Paternity Leave • Employer Assistance Program • Student Loan Repayment Equal Opportunity Here you have freedom to embrace your whole self: who you love, your gender identity and expression, skin color, age, appearance, disability, neurodiversity, DNA, military/veteran status, citizenship, and other factors that make up who you are. Your uniqueness is valued, welcomed, and appreciated here. We are dedicated to providing a positive workplace and base all employment decisions on your qualifications, performance, merits, as well as business needs. We are proud to be an Equal Employment Opportunity Employer.

Design and develop scalable backend services for quantum computers, lead and mentor engineers, collaborate with interdisciplinary teams, and support control stack debugging. | Bachelor's degree with 5+ years experience, strong Python and compiled language skills, leadership experience, Linux and virtualization knowledge, and collaboration skills. | Infleqtion is on a mission to commercialize atom-based quantum technologies that deliver orders-of-magnitude improvements in sensing and computing applications. We are seeking self-motivated, energetic individuals with exceptional problem-solving and technical skills to help drive our Quantum Computing mission forward. At Infleqtion we embrace a startup mentality driven by results, urgency, and customer-focused innovation: • We break down barriers between disciplines, stepping in wherever we can make the biggest impact. • We thrive in uncertainty, embracing challenges as opportunities. • We move quickly to prototype while never losing sight of the critical importance of systems engineering process and attention to detail. • We take bold, calculated risks to drive progress. We are seeking a Software Technical Lead to join the team building the control system software for Infleqtion’s quantum computers as both an individual contributor and manager for a handful of other engineers on the team. The ideal candidate is an experienced backend engineer with a strong background in creating robust and scalable scientific applications who also has an interest in people management to help their team-mates achieve their potential. You will play a crucial leadership role in designing, building, and maintaining backend services and control systems that drive our neutral atom quantum processors. JOB RESPONSIBILITIES The duties and responsibilities outlined below include essential functions of the role. Depending on business needs, this role may perform a combination of some or all of the following duties. Duties, responsibilities, and activities may change, or new ones may be assigned at any time. • Design, develop, and deploy reliable, maintainable, scalable, and fault-tolerant backend services and frameworks that control and calibrate our neutral atom quantum computers. • Mentor and guide software engineers as direct reports, fostering their growth and enhancing the team's technical expertise. • Lead code and design reviews, upholding engineering best practices and promoting a culture of quality and collaboration. • Collaborate with interdisciplinary teams, including scientists, opto-mechanical engineers, and electrical engineers, to solve complex problems and deliver high-quality software solutions. • Empower interdisciplinary teams to create the tools they need by teaching engineering and programming best practices. • Support and debug all layers of the control stack from real-time embedded kernels to distributed services. • Advocate for and implement innovative software development methodologies and tools to improve team efficiency and product quality. • Bachelor's degree in Computer Science, Applied Mathematics, Physics or related field and a minimum of 5 years prior work experience • Experience with Python and at least one compiled language, with a desire to learn and work in Rust • Desire to manage a handful of software engineers and software engineering projects • Comfortable working with hardware and embedded engineers to design and build high performance, real-time control systems • Experience with Linux and virtualization technologies like Docker • Good verbal and written communication skills, able to effectively share information with technical and non-technical staff • Good collaboration skills, able to work in a team environment where engagement and participation are an expected part of successful job performance • Skilled in typical software engineering disciplines: testing, debugging, revision control, error-handling, readability, documentation, general code health, etc.; familiar with industry standard Dev Ops workflows • Desire to constantly improve and learn inside and outside of expertise PREFERRED EXPERIENCE: • Experience managing software engineers and software engineering projects • Experience with Numpy, Scipy, Pytorch, and QPU-acceleration libraries • Experience with image analysis, emphasis on realtime object detection • Experience with databases (relational and non-relational) including but not limited to timeseries data, SQL, and ETL processes • Experience creating CI/CD pipelines, and Python package creation with C or Rust extensions Location: Boulder, CO; Chicago, IL; or Madison, WI This position may require access to information protected under U.S. export control laws and regulations, including the Export Administration Regulations (EAR) and the International Traffic in Arms Regulations (ITAR). Please note that any offer for employment may be conditioned on authorization to receive software or technology controlled under these U.S. export control laws and regulations without sponsorship for an export license. The targeted salary range for this role is $155,000 to $185,000 on an annualized basis plus eligibility to participate in our annual incentive plan. In addition to your base compensation, we offer a generous Total Rewards program which includes: • 100% company paid Employee coverage for Medical, Dental, Vision, and Short/Long Term Disability insurance programs • Employer funded Health Savings Account • Unlimited Paid Time Off • Relocation assistance • 401(k) Matching Programs • Company paid Life and AD&D Insurance • Flexible Healthcare Savings Account • Paid FMLA Leave • Paid Maternity/Paternity Leave • Employer Assistance Program • Student Loan Repayment Equal Opportunity Here you have freedom to embrace your whole self: who you love, your gender identity and expression, skin color, age, appearance, disability, neurodiversity, DNA, military/veteran status, citizenship, and other factors that make up who you are. Your uniqueness is valued, welcomed, and appreciated here. We are dedicated to providing a positive workplace and base all employment decisions on your qualifications, performance, merits, as well as business needs. We are proud to be an Equal Employment Opportunity Employer.

Lead and manage a software engineering team to design, develop, and deliver scalable control system software for quantum computers while setting technical direction and collaborating with cross-functional teams. | Bachelor's degree with 8+ years experience in technical leadership, expertise in Python and compiled languages, systems engineering, Linux, containerization, DevOps, agile methodologies, and ability to work with hardware teams; preferred quantum computing domain knowledge and advanced degrees. | Infleqtion is on a mission to commercialize atom-based quantum technologies that deliver orders-of-magnitude improvements in sensing and computing applications. We are seeking self-motivated, energetic individuals with exceptional problem-solving and technical skills to help drive our Quantum Computing mission forward. At Infleqtion we embrace a startup mentality driven by results, urgency, and customer-focused innovation: • We break down barriers between disciplines, stepping in wherever we can make the biggest impact. • We thrive in uncertainty, embracing challenges as opportunities. • We move quickly to prototype while never losing sight of the critical importance of systems engineering process and attention to detail. • We take bold, calculated risks to drive progress. We are seeking a Director of Software Engineering to lead the team building the control system software for Infleqtion’s quantum computers. The ideal candidate brings strong expertise in designing and delivering robust and scalable software services, along with proven experience leading software teams in developing those services. Your vision will chart the course for innovation, setting the technical direction and architectural foundation of our software systems. Job Responsibilities The duties and responsibilities outlined below include essential functions of the role. Depending on business needs, this role may perform a combination of some or all of the following duties. Duties, responsibilities, and activities may change, or new ones may be assigned at any time. • Manage, develop, build, and lead a team of software developers & DevOps engineers. Mentor and guide direct reports, fostering their growth and enhancing the team's technical expertise • Develop, communicate, and enforce software development standards and processes • Maintain a comprehensive understanding of the Infleqtion quantum computing software systems, their operational principles, their requirements, the broad technical stack, etc.; architect and design control system software; hands-on application of deep subject matter expertise in building software systems • In collaboration with programmatic leadership and adjacent engineering disciplines, develop and execute a technical roadmap for software deliverables across the control stack to support given high-level quantum computing performance targets and system deliverables • Communicate software feature roadmaps and resource needs between the control software team, adjacent stakeholders, and executive management Requirements • Bachelor's degree in Computer Science, Applied Mathematics, Physics or related field and a minimum of 8 years prior work experience • Demonstrated success in a technical leadership role in a deep-tech startup environment • Deep expertise in Python and at least one compiled language, with enthusiasm for learning and developing in Rust • Command of systems engineering principles and their application to requirements-driven software engineering • Extensive experience with Linux and modern containerization and virtualization technologies • Comfortable working with hardware and embedded engineers to architect, design, and build high performance, real time control systems • Excellent verbal and written communication skills, able to effectively share information with technical and non-technical staff and external parties • Eagerness to expand knowledge beyond core area of expertise • Experience with industry standard Dev Ops workflows • Experience with modern development methodologies such as agile and scrum Preferred Experience • PhD in relevant technical area (computer science, physics, etc) • Domain expertise in quantum information science; demonstrated success in a technical leadership role in the quantum field • Experience managing software engineering teams • Experience leading aspects of product development with highly complex dependencies in system and project plan • Experience with Numpy, Scipy, and GPU acceleration libraries • Experience optimizing Python packages using C or Rust extensions • Familiarity with quantum error correction and its implied requirements for control software and hardware elements • Experience with databases (relational and non-relational) including but not limited to timeseries data, SQL, and ETL processes Location: Boulder, CO; Chicago, IL; or Madison, WI This position may require access to information protected under U.S. export control laws and regulations, including the Export Administration Regulations (EAR) and the International Traffic in Arms Regulations (ITAR). Please note that any offer for employment may be conditioned on authorization to receive software or technology controlled under these U.S. export control laws and regulations without sponsorship for an export license. Benefits The targeted salary range for this role is $175,000 to $220,000 on an annualized basis plus eligibility to participate in our annual incentive plan. In addition to your base compensation, we offer a generous Total Rewards program which includes: • 100% company paid Employee coverage for Medical, Dental, Vision, and Short/Long Term Disability insurance programs • Employer funded Health Savings Account • Unlimited Paid Time Off • Relocation assistance • 401(k) Matching Programs • Company paid Life and AD&D Insurance • Flexible Healthcare Savings Account • Paid FMLA Leave • Paid Maternity/Paternity Leave • Employer Assistance Program • Student Loan Repayment Equal Opportunity Here you have freedom to embrace your whole self: who you love, your gender identity and expression, skin color, age, appearance, disability, neurodiversity, DNA, military/veteran status, citizenship, and other factors that make up who you are. Your uniqueness is valued, welcomed, and appreciated here. We are dedicated to providing a positive workplace and base all employment decisions on your qualifications, performance, merits, as well as business needs. We are proud to be an Equal Employment Opportunity Employer.

Oversee daily facility operations and maintenance, manage safety and compliance programs, coordinate vendors and contractors, and ensure regulatory adherence. | Bachelor’s degree or equivalent experience, 5+ years in facilities management or related field, strong knowledge of safety regulations and building codes, vendor and project management experience. | Infleqtion is a global quantum technology company solving the world’s most challenging problems. The company harnesses quantum mechanics to build and integrate quantum computers, sensors, and networks. From fundamental physics to leading edge commercial products, Infleqtion enables “quantum everywhere” through our ecosystem of devices and platforms. Location Infleqtion has 6 office locations, operating out of Boulder/Louisville, CO; Madison, WI; Chicago, IL; Oxford, UK; and Melbourne, AU. This position is a full-time, hybrid position which will be located in our Louisville, CO office. Position Summary Infleqtion is seeking a proactive and highly organized Facilities and Safety Manager to oversee the daily operations and long-term planning of our facilities, as well lead overall safety and compliance programs. This individual will play a critical role in ensuring that our physical work environment supports business needs, complies with safety regulations, and operates smoothly. The ideal candidate has demonstrated expertise in Facilities Operations, Vendor Management, Project Management, Compliance, and Safety Management with the ability to lead initiatives that keep our spaces safe, efficient, and aligned with Infleqtion’s growth. Key Responsibilities • Facilities Operations & Maintenance • Oversee daily building operations, maintenance, and repair of all facility systems including HVAC, electrical, plumbing, utilities, security, and access control platforms • Coordinate and supervise external contractors and vendors for facility-related projects, services, and routine/preventative and emergency maintenance programs • Plan and manage facility expansions, renovations, and reconfigurations as needed, working closely with production and engineering teams • Ensure the facilities meet all applicable building codes, environmental regulations, and local ordinances • Manage facility budgets, track expenses, and forecast operational needs • Prioritize, track, and resolve Facilities related support tickets in management portals • Safety & Compliance • Develop, implement, and enforce workplace health, safety, and emergency response programs • Conduct safety audits, inspections, and drills to ensure compliance with OSHA and local regulations • Serve as the primary point of contact for workplace safety initiatives and regulatory compliance • Lead incident investigations, root cause analysis, and ensure proper reporting of all safety incidents and near misses • Develop and deliver safety training programs for all employees, covering such topics as first aid and CPR, fire safety, hazardous materials handling, and emergency action plans • Maintain accurate safety records, including training logs, inspection reports, and incident documentation • Promote a strong safety culture throughout the company, encouraging employee involvement, and continuous improvement • Vendor & Stakeholder Management • Negotiate, manage, and monitor contracts with facility service providers, including maintenance, cleaning, security, and construction vendors • Foster relationships with landlords, property managers, and external partners to ensure efficient facility operations • Collaborate cross-functionally with HR, IT, and Operations to support business continuity and employee needs Working Conditions and Physical Requirements This position may require access to information protected under U.S. export control laws and regulations, including the Export Administration Regulations (EAR) and the International Traffic in Arms Regulations (ITAR). Please note that any offer for employment may be conditioned on authorization to receive software or technology controlled under these U.S. export control laws and regulations without sponsorship for an export license. Work will normally be performed in an office and laboratory environment and around technical equipment including computers and lasers. Able to sit, stand, bend, lift and carry up to 40 pounds without assistance. Able to efficiently use automated office equipment such as laptops, copiers, and printers; able to effectively engage in communications (via phone, computer, or in-person). Any required Personal Protective Equipment will be provided and must be properly used in accordance with company requirements. Travel Up to 10% travel may be required Minimum Qualifications • Bachelor’s degree in Facilities Management, Construction Management, Engineering, Business Administration, or a related field (or equivalent experience). • 5+ years of relevant experience in facilities management, operations, or construction project management. • Strong knowledge of safety regulations, building codes, and compliance requirements. • Proven track record of managing vendors, contractors, and large-scale facility projects. • Exceptional organizational, problem-solving, and communication skills. Preferred Qualifications • Experience with CMMS and/or EHS software • Project Management Professional (PMP), Certified Facility Manager (CFM), or OSHA certifications preferred. W offer a generous Total Rewards program which includes: • 100% company paid Employee coverage for Medical, Dental, Vision, and Short/Long Term Disability insurance programs • Employer funded Health Savings Account • Unlimited Paid Time Off • 401(k) Matching Programs • Company paid Life and AD&D Insurance • Flexible Healthcare Savings Account • Paid FMLA Leave • Paid Maternity/Paternity Leave • Employer Assistance Program • Student Loan Repayment Equal Opportunity Here you have freedom to embrace your whole self: who you love, your gender identity and expression, skin color, age, appearance, disability, neurodiversity, DNA, military/veteran status, citizenship, and other factors that make up who you are. Your uniqueness is valued, welcomed, and appreciated here. We are dedicated to providing a positive workplace and base all employment decisions on your qualifications, performance, merits, as well as business needs. We are proud to be an Equal Employment Opportunity Employer.

Lead the end-to-end technical execution of a space payload development program, ensuring alignment with mission objectives and customer requirements. Oversee system design, integration, verification, and risk management while fostering a high-performance engineering culture. | Candidates must have a Bachelor's degree in a relevant field and a minimum of 8 years of experience in aerospace engineering roles. Proven experience as a technical lead on complex development programs is essential. | Infleqtion is a global quantum technology company solving the world’s most challenging problems. The company harnesses quantum mechanics to build and integrate quantum computers, sensors, and networks. From fundamental physics to leading edge commercial products, Infleqtion enables “quantum everywhere” through our ecosystem of devices and platforms. Location Infleqtion has 6 office locations, operating out of Austin, TX; Boulder/Louisville, CO; Madison, WI; Chicago, IL; London, UK; and Melbourne, AU. This position is a full-time, hybrid position which will be in our Louisville, Colorado offices. Position Summary We are seeking a technically exceptional and mission-driven Chief Engineer (CE) to lead the end-to-end technical execution of a cutting-edge space payload development program. As the technical authority, you will ensure that all engineering activities align with mission objectives, meet customer requirements, and integrate effectively across disciplines. The CE will partner with the Program Manager, Chief Scientist, and program IPT Leads to deliver a system that is technically compliant, on time, and within budget. Job Responsibilities The duties and responsibilities outlined below include essential functions of the role. Depending on business needs, this role may perform a combination of some or all the following duties. Duties, responsibilities, and activities may change, or new ones may be assigned. Technical Authority & Leadership Serve as the ultimate technical authority for the program, owning the end-to-end system design and architecture. Make final decisions on key trade-offs, technical issues, and risk mitigations. In cooperation with the Systems Engineering IPT Lead and Chief Scientist, approve and support definition, maintenance, and evolution of the technical baseline throughout the program lifecycle. System Design & Integration Provide oversight of design activities and ensure proper system decomposition, interface definition, and integration across subsystems. Ensure all engineering outputs comply with mission needs, requirement specifications, and lifecycle performance. Verification, Validation, and Test Readiness Approve the system-level V&V strategy, including test plans, procedures, and success criteria. Ensure the system is technically ready for major test campaigns and mission use. Lead or approve critical events, such as TRRs for TVAC, shock/vibe, and EMI/EMC. Technical Risk & Issue Management Identify, own, and drive resolution of high-impact technical risks and issues. Lead root cause analysis and corrective actions for anomalies and failures. Champion technical excellence and rigorous engineering processes. Utilize experience during program execution to support continuous improvement of company engineering principles, practices, and procedures. Customer & Stakeholder Interface Serve as the technical counterpart to the customer’s chief engineer or technical authority. Represent/support the engineering team at major program and customer reviews (SRR, PDR, CDR, TRR, etc.). Communicate technical progress, risks, and trade studies with transparency and confidence. Engineering Team Leadership Provide day-to-day technical mentorship to subsystem leads and IPTs. Foster a collaborative and high-performance engineering culture. As required, review and approve technical work products and engineering documentation. Compliance and Standards Ensure the program adheres to relevant engineering standards and quality requirements (e.g., NASA/ESA SE standards, AS9100, MIL-STD-881, ECSS). Interface with mission assurance, quality, and safety teams to ensure compliant execution. Programmatic and Strategic Support Work closely with the Program Manager to ensure technical execution supports cost and schedule objectives. Support ECP development, design-to-cost efforts, EAC reviews, and strategic technology roadmapping. Required Qualifications Bachelor’s degree in Aerospace Engineering, Systems Engineering, Physics, Electrical/Mechanical Engineering, or a related field. Minimum of 8+ years of experience in engineering roles supporting aerospace or spaceflight systems. Proven experience as a technical lead or chief engineer on a complex, multi-disciplinary development program. Deep understanding of the full product development lifecycle, from concept through launch and operations. Preferred Qualifications Master’s or Ph.D. in a relevant technical field. Prior experience as a technical expert on developmental space system payloads, particularly in RF, EO/IR, or related missions. Expertise with Model-Based Systems Engineering (MBSE) tools (e.g., Cameo, SysML). Experience with system-level testing in TVAC, EMI/EMC, or Vibe environments. Active TS/SCI clearance, or ability to obtain or maintain a U.S. Government security clearance (Secret or higher). Tools & Platforms Used Requirements: Jama or similar for systems engineering and requirements management Architecture & Modeling: Cameo, Rhapsody, SysML/UML Analysis: Ansys/STK, COMSOL, python, thermal/structural FEA tools Configuration & Risk Management: JIRA, Risk Registers, FMEA Core Competencies Leadership: Inspires technical teams and drives to closure Systems Thinking: Balances performance, integration, schedule, and risk Communication: Engages with internal teams and external customers with clarity and credibility Technical Depth: Commands respect through experience, knowledge, and mentorship Integrity: Upholds engineering excellence and mission assurance The targeted salary range for this role is $170,000 to $210,000 on an annualized basis plus eligibility to participate in our annual incentive plan. In addition to your base compensation, we offer a generous Total Rewards program which includes: 100% company paid Employee coverage for Medical, Dental, Vision, and Short/Long Term Disability insurance programs Employer funded Health Savings Account Unlimited Paid Time Off 401(k) Matching Programs Company paid Life and AD&D Insurance Flexible Healthcare Savings Account Paid FMLA Leave Paid Maternity/Paternity Leave Employer Assistance Program Student Loan Repayment Equal Opportunity Here you have freedom to embrace your whole self: who you love, your gender identity and expression, skin color, age, appearance, disability, neurodiversity, DNA, military/veteran status, citizenship, and other factors that make up who you are. Your uniqueness is valued, welcomed, and appreciated here. We are dedicated to providing a positive workplace and base all employment decisions on your qualifications, performance, merits, as well as business needs. We are proud to be an Equal Employment Opportunity Employer. Contact Information If this opportunity interests you and you fit the job description, please submit an application. If you need assistance or an accommodation due to disability, please feel free to contact us at hr@coldquanta.com.