Infleqtion

Developing and executing corporate narrative, media strategy, and executive visibility programs. | Over 10 years in communications with strong writing, narrative, and media relations skills, preferably in tech or complex domains. | About the role We are looking for a hands-on Director of Corporate Communications to own our corporate narrative and external visibility with business and trade media. You will set strategy and drive execution writing, pitching, and producing high-quality communications that build reputation, support business priorities, and elevate our leadership in the market. This is a high-impact role on a senior team with ambitious goals. You will operate as the single-threaded owner for corporate communications, partnering closely across the company What you’ll do Corporate narrative and messaging Own our corporate messaging from the narrative, messaging pillars, proof points, differentiation, “what we do / why it matters,” and audience-specific variants (media, customers, partners, talent, analysts). Establish and maintain a messaging architecture that scales: master narrative, storylines, and FAQs Translate complex technical and business concepts into clear, compelling stories for non-technical audiences Build and maintain core comms assets (boilerplate, company overview, executive bios, media kit, key slides, briefing materials) Media strategy and earned coverage Develop and execute earned media strategy across business and relevant trade outlets, setting priorities, storylines, targets, and timing in partnership with our PR agency. Enable and support agency pitching by providing clear narrative direction, proof points, spokespeople access, and fast-turn materials while doing select direct pitching for high-priority opportunities and priority relationships. Manage inbound media requests, staff interviews, and coordinate rapid responses when news breaks; ensure the agency has what it needs to move quickly and accurately. Write and ship press releases, media statements, Q&A, and briefing documents with speed and precision; review and elevate agency drafts to meet quality and message-discipline standards. Build a proactive story engine beyond launches (trend POV, partner/customer narratives, credible proof-driven angles), supplying the agency with a steady pipeline of well-developed story hooks. Executive visibility and thought leadership Own the executive visibility program: speaking opportunities, bylines, podcasts, awards, and key industry forums Create speaker submissions and supporting materials; prepare executives with message discipline and rehearsal Integrated launches and cross-functional leadership Lead communications planning for major announcements and milestones Manage PR agencies and vendors as needed; set clear briefs, maintain high standards, and measure outcomes. Employee communications Own internal communications (e.g., all-hands support, leadership announcements, manager toolkits, FAQs), ensuring employees understand company priorities and key decisions Ensure internal and external messaging stay aligned and reinforce the same narrative Reputation and issues readiness Establish monitoring and a pragmatic issues-response approach (escalation paths, holding statements, and clear ownership) appropriate for a lean team operating at high speed What success looks like A clear, differentiated narrative shows up consistently in coverage, executive remarks, and key stakeholder conversations. A predictable drumbeat of high-quality earned media and executive visibility wins tied to business priorities. Messaging is disciplined and scalable: teams use the same core proof points, and communications outcomes show strong message pull-through. Employees are informed and aligned on strategy, priorities, and key announcements. What we’re looking for 10+ years in corporate communications, PR, or marketing communications; experience in technical B2B, deep tech, or complex products strongly preferred. Exceptional messaging and narrative capability: you can build a messaging architecture from scratch, pressure-test claims, and equip executives and teams to tell the same story with clarity and confidence. Demonstrated ability to secure high-quality coverage and build executive visibility programs end-to-end. Outstanding writing and editing skills; you can draft polished materials quickly and confidently. Strong judgment and attention to detail, especially around accuracy, substantiation, and sensitive topics. Quantum domain experience: prior work in quantum computing, quantum technology, advanced physics, or closely adjacent deep-tech domains (e.g., semiconductors, photonics, AI infrastructure, aerospace/defense tech) is a strong advantage. Analyst relations experience or strong familiarity working with analysts/influencers. Benefits 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 Salary: 150,000 to 180,000 per year

Own and execute the company's corporate narrative, media strategy, and executive visibility programs to enhance reputation and support business goals. | Requires 10+ years in corporate communications with strong narrative, media, and executive visibility skills, preferably in deep tech or complex B2B environments. | About The Role We are looking for a hands-on Director of Corporate Communications to own our corporate narrative and external visibility with business and trade media. You will set strategy and drive execution writing, pitching, and producing high-quality communications that build reputation, support business priorities, and elevate our leadership in the market. This is a high-impact role on a senior team with ambitious goals. You will operate as the single-threaded owner for corporate communications, partnering closely across the company What You'll Do Corporate narrative and messaging • Own our corporate messaging from the narrative, messaging pillars, proof points, differentiation, "what we do / why it matters," and audience-specific variants (media, customers, partners, talent, analysts) • Establish and maintain a messaging architecture that scales: master narrative, storylines, and FAQs • Translate complex technical and business concepts into clear, compelling stories for non-technical audiences • Build and maintain core comms assets (boilerplate, company overview, executive bios, media kit, key slides, briefing materials) Media strategy and earned coverage • Develop and execute earned media strategy across business and relevant trade outlets, setting priorities, storylines, targets, and timing in partnership with our PR agency • Enable and support agency pitching by providing clear narrative direction, proof points, spokespeople access, and fast-turn materials while doing select direct pitching for high-priority opportunities and priority relationships • Manage inbound media requests, staff interviews, and coordinate rapid responses when news breaks; ensure the agency has what it needs to move quickly and accurately • Write and ship press releases, media statements, Q&A, and briefing documents with speed and precision; review and elevate agency drafts to meet quality and message-discipline standards • Build a proactive story engine beyond launches (trend POV, partner/customer narratives, credible proof-driven angles), supplying the agency with a steady pipeline of well-developed story hooks Executive visibility and thought leadership • Own the executive visibility program: speaking opportunities, bylines, podcasts, awards, and key industry forums • Create speaker submissions and supporting materials; prepare executives with message discipline and rehearsal Integrated launches and cross-functional leadership • Lead communications planning for major announcements and milestones • Manage PR agencies and vendors as needed; set clear briefs, maintain high standards, and measure outcomes Employee communications • Own internal communications (e.g., all-hands support, leadership announcements, manager toolkits, FAQs), ensuring employees understand company priorities and key decisions • Ensure internal and external messaging stay aligned and reinforce the same narrative Reputation and issues readiness • Establish monitoring and a pragmatic issues-response approach (escalation paths, holding statements, and clear ownership) appropriate for a lean team operating at high speed What Success Looks Like • A clear, differentiated narrative shows up consistently in coverage, executive remarks, and key stakeholder conversations • A predictable drumbeat of high-quality earned media and executive visibility wins tied to business priorities • Messaging is disciplined and scalable: teams use the same core proof points, and communications outcomes show strong message pull-through • Employees are informed and aligned on strategy, priorities, and key announcements Requirements What we're looking for • 10+ years in corporate communications, PR, or marketing communications; experience in technical B2B, deep tech, or complex products strongly preferred • Exceptional messaging and narrative capability: you can build a messaging architecture from scratch, pressure-test claims, and equip executives and teams to tell the same story with clarity and confidence • Demonstrated ability to secure high-quality coverage and build executive visibility programs end-to-end • Outstanding writing and editing skills; you can draft polished materials quickly and confidently • Strong judgment and attention to detail, especially around accuracy, substantiation, and sensitive topics • Quantum domain experience: prior work in quantum computing, quantum technology, advanced physics, or closely adjacent deep-tech domains (e.g., semiconductors, photonics, AI infrastructure, aerospace/defense tech) is a strong advantage • Analyst relations experience or strong familiarity working with analysts/influencers Benefits Benefits • 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 • Salary: 150,000 to 180,000 per year

Establish and lead an internal audit function, oversee SOX compliance, and communicate audit findings to senior management and the Audit Committee. | Requires CPA or CIA certification, 8-12 years of experience in internal or external audit, and experience with SOX 404 in a public company environment. | About the Role Infleqtion is a worldwide leader in quantum sensing and computing technologies. We are a global operation with a deep technical leadership team executing in highly collaborative fashion while maintaining relentless focus on delivering results. The Director of Internal Audit is responsible for establishing and leading an independent, risk-based internal audit function for a public company. This role provides objective assurance and advisory services to the Audit Committee and management regarding the effectiveness of internal controls, risk management, governance processes, and compliance with regulatory requirements, including Sarbanes-Oxley (SOX). The Director of Internal Audit will design and execute the annual audit plan, oversee SOX compliance activities, coordinate with external auditors, and communicate audit results and risk insights to senior management and the Audit Committee. Key Responsibilities Governance & Audit Committee Support Report functionally to the Audit Committee and maintain regular communication, including executive sessions Prepare and present: Internal Audit Charter Annual risk assessment and audit plan Audit results, key findings, and remediation status Support the Audit Committee in fulfilling its oversight responsibilities related to risk management, internal controls, and compliance Internal Audit Leadership Establish and maintain a risk-based internal audit program aligned with COSO Internal Control and ERM frameworks Develop and execute the annual internal audit plan covering: Financial reporting and SOX 404 Operational and strategic risks Compliance and regulatory risks IT and cybersecurity risks Ensure internal audit maintains independence, objectivity, and professional standards (IIA Standards) SOX & Financial Controls Lead the internal audit role in SOX 404 ICFR, including: Risk assessment Control design and operating effective testing Evaluation of deficiencies and remediation Coordinate SOX activities with: Management External auditors Co-sourced audit providers Monitor changes in accounting standards, SEC requirements, and internal control expectations Qualifications Bachelor’s degree in accounting, Finance, Business, or related field CPA, CIA, or CISA required (CPA or CIA strongly preferred) Minimum 8–12 years of progressive experience in: Internal audit, external audit, or risk management & Public company environment subject to SOX 404 Prior experience leading or managing audit engagements and teams Proven experience interacting with Audit Committees and senior executives Benefits 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

Designing and integrating mechanical systems for space applications, including modeling, analysis, and collaboration with multidisciplinary teams. | Bachelor's in design electronics or embedded systems, 6+ years in mechanical/aerospace roles, proficiency in Solidworks, opto-mechanical expertise, and hardware 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 mechanical architect to design the infrastructure and mounting that allows our cutting-edge technology to transition the bounds between earth and space. In this role, the candidate will take a modified terrestrial design and implement all of the structural mounting, damping, and isolation necessary to survive the loads imparted by both the launch vehicle and the pre-launch microgravity testing necessary to prove out the physics sequence functionality to perform the required measurements in space. The role requires close collaboration with our prime customer(s), internal management, researchers, systems engineers, aerospace experts, manufacturing partners, suppliers, and external subcontractors. The individual will actively engage customers and partners throughout the program lifecycle, ensuring delivery against milestones and commitments while maintaining alignment with Infleqtion’s internal product lifecycle and quality standards. Cross-disciplinary engagement is expected, with this role driving technical alignment across hardware, software, systems, and mission domains. 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. Own the overall mechanical system architecture and ensure alignment with requirements and functional needs of the system Presenting progress and results to senior management and the end customer Execution of modelling, simulation, and analytical efforts required to enable product performance Integration of mechanical subsystems with electrical, optical, and other subsystems Identifying and engaging key suppliers Following Infleqtion’s Product Lifecycle Process and supporting Phase gate reviews, critical design reviews, and executive updates Supporting development of risk management plans and risk resolution, and supporting reliability analysis and continuous improvement Coaching and mentoring junior engineers Other duties as assigned or required Minimum Qualifications Bachelor’s degree required, with a focus in design electronics and/or embedded systems engineering 6+ years of relevant and progressive experience in similar roles Demonstrated expert level proficiency in Solidworks CAD design tools Excellent proficiency in design first principles Experience using Solidworks analysis tools Excellent technical and people leadership skills Expert level understanding of opto-mechanics, including free space optical mounting, collimator design, free space and fiber coupled alignment design and tolerancing Ability to run Zemax/OpticStudio software and interpret the results Demonstrated Dfx (design to cost…etc) Understanding of ASTM E595 – how to choose materials for space Experience designing custom flexure mounts for both optics and instruments Tolerance analysis Hands on engineer with experience building both EDU and flight hardware Uses AI appropriately for leverage; understands limitations of current platforms Ability to travel domestically and (potentially) internationally up to 10% Desired Qualifications Comfortable with a hands-on approach to engineering leadership Master’s or PhD degree in aerospace mechanical engineering or related field Experience in delivering new, advanced technologies to commercial markets Experience in hardware DFx (design for cost, manufacturing, assembly, test, sustainment) Familiarity with quantum computing, mechanics, or physics Benefits Salary range: 140,000 to 175,000 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

Design, analyze, and build thermal systems for space hardware, including modeling, testing, and collaborating with cross-disciplinary teams. | Bachelor's in aerospace/mechanical engineering, 6+ years of relevant experience, hands-on hardware experience, knowledge of space materials and thermal modeling. | 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 experienced thermal analyst; this role is responsible for keeping our sensor head and electronics temperature limits in check when performing physics sequences enabling quantum sensing operations in space. The role requires close collaboration with our prime customer(s), internal management, researchers, systems engineers, aerospace experts, manufacturing partners, suppliers, and external subcontractors. The individual will actively engage customers and partners throughout the program lifecycle, ensuring delivery against milestones and commitments while maintaining alignment with Infleqtion’s internal product lifecycle and quality standards. Cross-disciplinary engagement is expected, with this role driving technical alignment across hardware, software, systems, and mission domains. Travel Up to 10% travel may be required to support off-site testing, deliveries, and integration. 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. Update the existing system-level thermal model with the appropriate fidelity to ensure the physics sequence operates within space environmental constraints Conduct regular technical discussions and model reviews of in-house and subcontractor electronic card and enclosure cooling designs, including some of them which have unique thermal requirements Develop and test EDU thermal designs for microgravity environments Adapt flight thermal designs for microgravity testing Serve as a hands-on engineer with experience building both EDU and flight hardware Install MLI and bond heaters and thermistors using ASTM-E595 approved materials Presenting progress and results to senior management and the end customer Execution of modelling, simulation, and analytical efforts required to enable product performance Integration of subsystems and their thermal requirements / interfaces Identifying and engaging key suppliers Following Infleqtion’s Product Lifecycle Process and supporting Phase gate reviews, critical design reviews, and executive updates Supporting development of risk management plans and risk resolution, and supporting reliability analysis and continuous improvement Coaching and mentoring junior engineers Other duties as assigned or required Minimum Qualifications Bachelor’s degree required, with a focus in thermal design or a related engineering field 6+ years of relevant and progressive experience in similar roles Hands on engineer with experience building both EDU and flight hardware Experience installing MLI, bonding of heaters and thermistors using ASTM-E595 approved materials Leverages AI appropriately; understands limitations of current offerings Excellent proficiency in design first principles Expert level understanding of opto-mechanics, including free space optical mounting, collimator design, free space and fiber coupled alignment design and tolerancing Demonstrated Dfx (design to cost etc.) Understanding of ASTM E595 – how to choose materials for space Experience designing custom flexure mounts for both optics and instruments Tolerance analysis Hands on engineer with experience building both EDU and flight hardware Uses AI appropriately for leverage; understands limitations of current platforms Ability to travel domestically and (potentially) internationally up to 10% Desired Qualifications Comfortable with a hands-on approach to engineering leadership Master’s or PhD degree in aerospace mechanical engineering or related field Experience in delivering new, advanced technologies to commercial markets Experience in hardware DFx (design for cost, manufacturing, assembly, test, sustainment) Familiarity with quantum computing, mechanics, or physics 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. Benefits Salary range: 160,000 to 200,000 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

Developing audience strategies, crafting technical-to-business messaging, managing corporate engagement, and leading integrated marketing campaigns for enterprise audiences. | 7+ years in enterprise or B2B marketing, experience translating technical products into business value, managing complex corporate stakeholder relationships. | 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. Our mission is to commercialise atom-based quantum products that provide orders of magnitude improvements in performance and computing applications. Location: United Kingdom, Oxford or United States, Chicago. This is a full-time position. Work from home permitted up to 2 days per week based on business needs and manager approval. The Corporate MarCom Audience & Product Lead will position Infleqtion as the go-to quantum technology partner for enterprise and commercial markets across the UK, U.S., and global regions. This role is responsible for audience strategy, messaging, and integrated marketing campaigns that elevate Infleqtion’s visibility among corporate decision-makers, industry partners, and commercial stakeholders, with demonstrated experience navigating corporate matters. Develop and own the audience strategy for corporate and commercial sectors, tailoring segmentation and positioning for enterprise buyers and industry stakeholders. Craft compelling, value-driven messaging and narratives that translate technical capabilities into clear business outcomes, including ROI, differentiation, and operational impact. Partner with product, PR, and sales teams to launch and amplify commercial programs, products, and partnerships, supporting pipeline and adoption. Drive content and engagement programs — including white papers, webinars, customer stories, explainer videos, and industry thought leadership — built for enterprise and commercial audiences. Lead corporate ecosystem engagement, securing speaking opportunities and presence at key industry conferences, customer events, and partner forums. Manage strategic paid outreach and co-branded campaigns with enterprise partners, system integrators, and technology alliances. Track and report KPIs: press pickup, social engagement, thought leadership exposure, qualified leads, conversion impact, and event participation. Demonstrate experience supporting corporate matters, including cross-functional alignment with stakeholders in partnerships, compliance, procurement cycles, risk management, and executive communications. Qualifications: 7+ years in enterprise, B2B, or corporate marketing (or comparable experience marketing technical products to commercial audiences). Strong background in messaging for technical audiences, translating advanced technology into business value. Proven experience engaging with corporate stakeholders, including executives, procurement, product teams, and strategic partners. Demonstrated ability to manage complex corporate matters across internal and external stakeholders (e.g., partnerships, governance, compliance, brand risk, executive communications). Excellent storytelling, stakeholder management, and project leadership skills. As this role could be based in UK or USA then the benefits differ between countries according to laws and compliances and we can discuss these during the interview. Travel Up to 10% travel may be required. Equal Opportunity Regardless of your interest in the quantum industry, you can take pride in the fact that Infleqtion is building an ecosystem of quantum technologies and commercial products, driving the industry towards the future. Studies reveal that while men apply for jobs when they meet an average of 60% of the requirements, women and other groups tend to apply only when they meet all the criteria. If you believe you have the potential but don't meet every single point in our job advertisement, please don't hesitate to contact us! We would love to chat with you and see how you could bring great value to our team. Our goal is to find exceptional individuals who can enrich our team culture, actively contribute, and have a genuine passion for their work. Here you have freedom to embrace your whole self: who you love, your gender identity and expression, skin colour, 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.

Developing audience strategies, crafting technical-to-business messaging, and managing corporate engagement for quantum technology products. | 7+ years in enterprise or B2B marketing, experience translating technical products into business value, stakeholder management skills. | 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. Our mission is to commercialise atom-based quantum products that provide orders of magnitude improvements in performance and computing applications. Location: United Kingdom, Oxford or United States, Chicago. This is a full-time position. Work from home permitted up to 2 days per week based on business needs and manager approval. The Corporate MarCom Audience & Product Lead will position Infleqtion as the go-to quantum technology partner for enterprise and commercial markets across the UK, U.S., and global regions. This role is responsible for audience strategy, messaging, and integrated marketing campaigns that elevate Infleqtion’s visibility among corporate decision-makers, industry partners, and commercial stakeholders, with demonstrated experience navigating corporate matters. Develop and own the audience strategy for corporate and commercial sectors, tailoring segmentation and positioning for enterprise buyers and industry stakeholders. Craft compelling, value-driven messaging and narratives that translate technical capabilities into clear business outcomes, including ROI, differentiation, and operational impact. Partner with product, PR, and sales teams to launch and amplify commercial programs, products, and partnerships, supporting pipeline and adoption. Drive content and engagement programs — including white papers, webinars, customer stories, explainer videos, and industry thought leadership — built for enterprise and commercial audiences. Lead corporate ecosystem engagement, securing speaking opportunities and presence at key industry conferences, customer events, and partner forums. Manage strategic paid outreach and co-branded campaigns with enterprise partners, system integrators, and technology alliances. Track and report KPIs: press pickup, social engagement, thought leadership exposure, qualified leads, conversion impact, and event participation. Demonstrate experience supporting corporate matters, including cross-functional alignment with stakeholders in partnerships, compliance, procurement cycles, risk management, and executive communications. Qualifications: 7+ years in enterprise, B2B, or corporate marketing (or comparable experience marketing technical products to commercial audiences). Strong background in messaging for technical audiences, translating advanced technology into business value. Proven experience engaging with corporate stakeholders, including executives, procurement, product teams, and strategic partners. Demonstrated ability to manage complex corporate matters across internal and external stakeholders (e.g., partnerships, governance, compliance, brand risk, executive communications). Excellent storytelling, stakeholder management, and project leadership skills. As this role could be based in UK or USA then the benefits differ between countries according to laws and compliances and we can discuss these during the interview. Travel Up to 10% travel may be required. Equal Opportunity Regardless of your interest in the quantum industry, you can take pride in the fact that Infleqtion is building an ecosystem of quantum technologies and commercial products, driving the industry towards the future. Studies reveal that while men apply for jobs when they meet an average of 60% of the requirements, women and other groups tend to apply only when they meet all the criteria. If you believe you have the potential but don't meet every single point in our job advertisement, please don't hesitate to contact us! We would love to chat with you and see how you could bring great value to our team. Our goal is to find exceptional individuals who can enrich our team culture, actively contribute, and have a genuine passion for their work. Here you have freedom to embrace your whole self: who you love, your gender identity and expression, skin colour, 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.

Developing audience strategies, crafting mission-focused messaging, and managing government engagement for quantum security solutions. | 7+ years in defense, security, or B2G marketing with experience in technical or national security audiences, especially in quantum computing. | 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. Our mission is to commercialise atom-based quantum products that provide orders of magnitude improvements in performance and computing applications. Location: United Kingdom, Oxford or United States, Chicago. This is a full-time position. Work from home permitted up to 2 days per week based on business needs and manager approval. The Sensing and National Security MarCom Audience & Product Lead will position Infleqtion as the go-to quantum technology partner for mission-ready national security solutions in the UK, U.S., and Australia. This role is responsible for audience and messaging direction, and integrated marketing campaigns that elevate Infleqtion’s visibility among defense, intelligence, and government stakeholders. Develop and own the audience approach for national security and sensing sectors, ensuring strong alignment with quantum computing priorities and mission needs. Craft compelling, mission-focused messaging and narratives that translate technical value into clear quantum computing advantage for national security stakeholders. Partner with product, PR, and sales teams to launch and amplify defense-related programs, products, and partnerships. Drive content and engagement programs — including white papers, webinars, explainer videos, and mission-related storytelling — with a strong emphasis on quantum computing applications and impact. Lead government ecosystem engagement, securing speaking opportunities and presence at key defense and policy events. Manage strategic paid outreach and co-branded campaigns with major primes (Lockheed, Boeing, etc.). Track and report KPIs: press pickup, social engagement, thought leadership exposure, qualified leads, and event participation. Qualifications: 7+ years in defense, security, or B2G marketing. Strong background in messaging for technical or national security audiences, including quantum computing topics. Proven experience engaging with UK and allied defense ecosystems. Excellent storytelling, stakeholder management, and project leadership skills. As this role could be based in UK or USA then the benefits differ between countries according to laws and compliances and we can discuss these during the interview. Travel Up to 10% travel may be required. Equal Opportunity Regardless of your interest in the quantum industry, you can take pride in the fact that Infleqtion is building an ecosystem of quantum technologies and commercial products, driving the industry towards the future. Studies reveal that while men apply for jobs when they meet an average of 60% of the requirements, women and other groups tend to apply only when they meet all the criteria. If you believe you have the potential but don't meet every single point in our job advertisement, please don't hesitate to contact us! We would love to chat with you and see how you could bring great value to our team. Our goal is to find exceptional individuals who can enrich our team culture, actively contribute, and have a genuine passion for their work. Here you have freedom to embrace your whole self: who you love, your gender identity and expression, skin colour, 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.

Developing and executing marketing strategies for quantum technology in defense and security sectors, including messaging, content creation, and stakeholder engagement. | 7+ years in defense, security, or B2G marketing with experience in technical messaging and engagement with defense ecosystems. | 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. Our mission is to commercialise atom-based quantum products that provide orders of magnitude improvements in performance and computing applications. Location: United Kingdom, Oxford or United States, Chicago. This is a full-time position. Work from home permitted up to 2 days per week based on business needs and manager approval. The Sensing and National Security MarCom Audience & Product Lead will position Infleqtion as the go-to quantum technology partner for mission-ready national security solutions in the UK, U.S., and Australia. This role is responsible for audience and messaging direction, and integrated marketing campaigns that elevate Infleqtion’s visibility among defense, intelligence, and government stakeholders. Develop and own the audience approach for national security and sensing sectors, ensuring strong alignment with quantum computing priorities and mission needs. Craft compelling, mission-focused messaging and narratives that translate technical value into clear quantum computing advantage for national security stakeholders. Partner with product, PR, and sales teams to launch and amplify defense-related programs, products, and partnerships. Drive content and engagement programs — including white papers, webinars, explainer videos, and mission-related storytelling — with a strong emphasis on quantum computing applications and impact. Lead government ecosystem engagement, securing speaking opportunities and presence at key defense and policy events. Manage strategic paid outreach and co-branded campaigns with major primes (Lockheed, Boeing, etc.). Track and report KPIs: press pickup, social engagement, thought leadership exposure, qualified leads, and event participation. Qualifications: 7+ years in defense, security, or B2G marketing. Strong background in messaging for technical or national security audiences, including quantum computing topics. Proven experience engaging with UK and allied defense ecosystems. Excellent storytelling, stakeholder management, and project leadership skills. As this role could be based in UK or USA then the benefits differ between countries according to laws and compliances and we can discuss these during the interview. Travel Up to 10% travel may be required. Equal Opportunity Regardless of your interest in the quantum industry, you can take pride in the fact that Infleqtion is building an ecosystem of quantum technologies and commercial products, driving the industry towards the future. Studies reveal that while men apply for jobs when they meet an average of 60% of the requirements, women and other groups tend to apply only when they meet all the criteria. If you believe you have the potential but don't meet every single point in our job advertisement, please don't hesitate to contact us! We would love to chat with you and see how you could bring great value to our team. Our goal is to find exceptional individuals who can enrich our team culture, actively contribute, and have a genuine passion for their work. Here you have freedom to embrace your whole self: who you love, your gender identity and expression, skin colour, 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 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

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.

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 electrical design and development of electronic systems for quantum products, focusing on space-deployed systems. Collaborate with researchers and engineers to advance Infleqtion's quantum technologies. | Bachelor’s degree in design electronics or embedded systems engineering with 8+ years of relevant experience is required. Candidates should have experience in developing electronic systems for challenging environments and mentoring junior engineers. | 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 an exceptional Staff Electrical Engineer with aerospace experience to support and act as a team leader in electrical engineering development, strategy, delivery, and circuit operation in challenging environments in support of novel quantum sensors. This position will be responsible for leading the electrical design and development of electronic systems and subsystems for Infleqtion’s quantum products, with a focus on space-deployed systems. In this role, the selected candidate will collaborate with researchers, other engineers, and manufacturing to bring Infleqtion’s disruptive quantum technologies to new environments. The individual in this role has significant opportunity to influence Infleqtion’s prototype and product development and to further Infleqtion’s leadership in quantum technologies. 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. Management of a team responsible for electronics and microsystems architecture, design, test, and verification, including digital, mixed-signal, and analog electronics from DC to RF frequencies Presenting progress and results to the end customer Design of analog and/or mixed signal subsystems, FPGA-based controllers Translating product requirements into electronic and microsystems architecture and designs Execution of modelling, simulation, and analytical efforts required to enable product performance Integration of electronics subsystems with mechanical, optical, and other subsystems Identifying and engaging key suppliers Following Infleqtion’s Product Lifecycle Process and supporting Phase gate reviews, critical design reviews, and executive updates Supporting development of risk management plans and risk resolution, and supporting reliability analysis and continuous improvement Coaching and mentoring junior engineers Other duties as assigned or required 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% travel may be required to support off-site testing, deliveries, and integration. 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 Minimum Qualifications Bachelor’s degree required, with a focus in design electronics and/or embedded systems engineering 8+ years of relevant and progressive experience in similar roles including electrical design Experience developing electronic systems for challenging non-terrestrial environments, e.g. LEO, MEO Experience mentoring more junior engineers and leading teams Experience providing consultancy and strategic support to electrical engineering projects Demonstrated ability to work and communicate with all levels of an organization; Professional-level communication skills, including verbal, written, and presentation skills Demonstrated ability to work comfortably in a highly collaborative, cross-functional, team-oriented, and matrixed environment Desire and demonstrated ability to thrive and produce results in a fluid, dynamic, and fast-paced environment Demonstrated ability to learn new and complex topics quickly Resourceful problem-solver who collaboratively identifies effective paths forward with demonstrated expertise in executing productization efforts and working in highly technical environments Ability to travel domestically and (potentially) internationally up to 10% Desired Qualifications Master’s or PhD degree in electrical engineering or embedded systems engineering Proficiency in FPGA design, implementation, and verification Demonstrated ability to optimize FPGA designs for performance, power, and resource utilization in real-world applications Experience in delivering new, advanced technologies to commercial markets Experience in hardware DFx (design for cost, manufacturing, assembly, test, sustainment) Experience working with complex systems that integrate hardware, firmware, and software. Knowledge of best practices in software engineering is a plus Familiarity with Rad-hard microprocessors Familiarity with embedded firmware Familiarity with quantum computing, mechanics, or physics Familiarity with electro-optical design and integrated photonics Active listening and presence with team members The targeted salary range for this role is $150,000 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 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.