Oklo

Design, analyze, and optimize fast reactor cores, document technical work, and collaborate with a multidisciplinary team. | Advanced degree in nuclear engineering or related field, experience with reactor design and analysis, proficiency in relevant computational tools, and strong communication skills. | Thanks for your interest in Oklo! We are searching for a [ Position ] Engineer to join our team. Position Description The [ Position ] Engineer is responsible for [brief description of role]. Specific responsibilities may include: [ ... ] [ ... ] [Be aware of and familiar with fast reactor core design and analysis work being performed internationally, as well as related benchmark calculations and experiments being performed internationally] Provide technical feedback to quick-iterating design teams. Document work using modern tools and techniques, and write well-written, thoughtful technical reports. Minimum Qualifications: [If you have experience and expertise in reactor design, apply! We also think the following are good indicators of qualifications to do this job: Bachelors, Masters, or PhD in a technical field, such as nuclear engineering, with experience in reactor design and analysis (Masters or PhD may be preferable)] [Fluency with Python] [Experience with modern object oriented languages, preferably C++] [Proficiency with high performance computing systems] [Experience with fast reactor design and analysis is highly recommended] [Proficiency with MCNP and SERPENT is highly recommended] [Proficiency with DIF3D, REBUS, … is recommended] Competencies We are looking for a [ ] engineer that is: Passionate about clean energy Passionate about making advanced fission a reality Willing and able to learn quickly [Knowledgeable about fast reactor design] [Highly skilled with Monte Carlo neutronics tools such as MCNP, SERPENT, and Open-MC] [Skilled with deterministic fast reactor tools, or wiling and eager to learn] Eager to work on a dynamic team, receive constructive feedback, and grow with us Willing to think differently and do things in new ways Comfortable in a fast-paced, highly iterative startup environment Excited to think creatively, critically, and reflectively about the problems they are solving, while not leaning only on what has been done before Willing to propose novel and creative solutions to technical problems An excellent writer who can write in modern active voice, so make your cover letter compelling and write it well! Able to communicate technical content and results verbally Who you are: A startup person: You aren't driven by titles or hierarchy, and prefer efficiency to excess process. You don't need or expect to have a lot of guidance but you enjoy working in a fast-paced team. If you prefer the culture and feel of a large organization, that is great, but you likely won’t enjoy working with us! There is plenty of important work and plenty of good opportunities with organizations like that. Motivated: You are self-motivated. You bring an enthusiasm to the team, and imbue a sense of passion that goes beyond clocking in and clocking out. This isn’t about a fake or arbitrary “pieces of flair” mentality or lack of work-life balance! It is about being a part of the vision and feeling a part of reaching team goals. A team-player: Oklo genuinely is a team. We aren’t about taking credit for ourselves, and we aren’t about pushing blame to others. We do incredible things because we work as a team. An excellent communicator: We need a person who is not only technically competent but also a clear and upbeat communicator. Creative: Being creative means that when things fall outside clear scopes or processes or problems arise without clear solutions, you are able to identify it as well as invent ways to solve a problem or fill a need without micromanagement. The successful person in this job will not only be creative, but also enjoy being creative and solving open-ended problems which may change day-by-day. Detail-oriented: This focus is a big part of excellence, consistency, and quality. Excellent grammar and spelling matter for both good communication as well as the image of the company that we put forward. About Oklo travel requirements: Oklo requires remote employees to travel to headquarters (Santa Clara, CA) twice a quarter annually, based on business or team needs, including attendance at team meetings, off-sites, and other company events or gatherings. About Oklo compensation: Oklo offers flexible time off, equity, competitive pay, 401k, health insurance, FSA, flexible work hours, and other benefits. This position may involve access to information subject to U.S. export control laws. Only applicants who meet the definition of a U.S. person under applicable laws may be eligible. About Oklo Inc.: Oklo Inc. is developing fast fission power plants to deliver clean, reliable, and affordable energy at scale; establishing a domestic supply chain for critical radioisotopes; and advancing nuclear fuel recycling to convert nuclear waste into clean energy. Oklo was the first to receive a site use permit from the U.S. Department of Energy for a commercial advanced fission plant, was awarded fuel material from Idaho National Laboratory, and submitted the first custom combined license application for an advanced reactor to the U.S. Nuclear Regulatory Commission. Oklo is also developing advanced fuel recycling technologies in collaboration with the U.S. Department of Energy and U.S. National Laboratories. #CHOP: Oklo’s Values Collaboration: We go further, together. We bring diverse perspectives, listen actively, and build trust through transparency and respect. We work across disciplines, sharing ownership to turn complex challenges into shared successes. Humility: We are team players who act for the good of the company and for the world. We are focused on our mission, not personal recognition. Ownership: We take pride in what we do and how we do it. We are proactive in finding solutions and see tasks through to completion. We are committed to delivering on our promises to provide clean, reliable, and affordable energy. Pathfinding: We chart new ground where no path exists by approaching challenges with curiosity, courage, and creativity while navigating ambiguity.

Lead budgeting, forecasting, management reporting, and FP&A systems to support strategic financial decision-making across the organization. | Bachelor's degree in finance or related field, 5-8 years FP&A or corporate finance experience, strong financial modeling and analytical skills, proficiency with FP&A tools, and excellent communication skills. | Thanks for your interest in Oklo! We are searching for an Financial Planning and Analysis (FP&A) Manager to join our Finance team. Position Description The FP&A Manager will play a critical role in building and leading Oklo's financial planning and analysis function as the company continues to scale. This position will own the budgeting, forecasting, management reporting, and FP&A systems that inform strategic and operational decision-making across the organization. Working closely with the Director of Finance, you'll provide financial leadership and guidance to business partners across departments, delivering insights that shape budgets and company resource allocation. You'll also help refine financial processes and systems to ensure Oklo's finance function supports growth with accuracy, speed, and clarity. This is a high-visibility, hands-on role ideal for a finance professional who thrives in a dynamic, mission-driven environment and wants to lead a growing FP&A organization. Specific responsibilities may include: • Lead the annual budgeting and quarterly forecasting processes, partnering with department heads to align financial plans with company goals • Prepare and deliver monthly management reporting and KPI dashboards, including detailed variance analysis and financial commentary for executives • Serve as the primary finance business partner to department heads, supporting them with budgeting, expense management, headcount planning, and ad hoc financial analysis • Maintain and enhance the company's FP&A financial models • Drive implementation and improvement of FP&A tools, reporting systems, and automation to improve accuracy and efficiency • Collaborate with the accounting team to ensure accurate month-end close data and consistent financial reporting • Support executive and board reporting, providing analysis and presentation materials • Identify and execute opportunities to improve financial processes, controls, and decision support capabilities across the organization Minimum Qualifications: • Bachelor's degree in Finance, Accounting, Business, Economics, or a related field • 5-8 years of experience in FP&A, corporate finance, or strategic finance • Industry exposure to energy, power, renewables, or related infrastructure preferred; nuclear or other FOAK energy technology experience is a plus • Strong financial modeling, forecasting, and analytical skills; advanced proficiency in Excel • Proficiency with FP&A systems, ERPs, and reporting tools • Ability to translate financial data into clear, actionable insights for non-finance stakeholders • Excellent communication and presentation skills, with strong attention to detail • Self-starter comfortable working in a fast-paced, evolving environment with minimal structure • Prior experience at a publicly traded company and/or a high-growth company is preferred Competencies • Passionate about clean energy and making advanced nuclear a reality • Willing and able to learn quickly • Willing to think differently and do things in new ways • Comfortable in a fast-paced, highly iterative startup environment • Excited to think creatively, critically, and reflectively about the problems they are solving while not leaning only on what has been done before • Willing to propose novel and creative solutions to technical problems • Able to communicate technical content and results verbally • Eager to work on a dynamic team, receive constructive feedback, and grow with us • An excellent writer who can write in modern active voice, so make your cover letter compelling and write it well! • Able to communicate technical content and results verbally Who you are: A startup person: You aren't driven by titles or hierarchy, and prefer efficiency to excess process. You don't need or expect to have a lot of guidance but you enjoy working in a fast-paced team. If you prefer the culture and feel of a large organization, that is great, but you likely won't enjoy working with us! There is plenty of important work and plenty of good opportunities with organizations like that. Motivated: You are self-motivated. You bring an enthusiasm to the team, and imbue a sense of passion that goes beyond clocking in and clocking out. This isn't about a fake or arbitrary "pieces of flair" mentality or lack of work-life balance! It is about being a part of the vision and feeling a part of reaching team goals. A team-player: Oklo genuinely is a team. We aren't about taking credit for ourselves, and we aren't about pushing blame to others. We do incredible things because we work as a team. An excellent communicator: We need a person who is not only technically competent but also a clear and upbeat communicator. Creative: Being creative means that when things fall outside clear scopes or processes or problems arise without clear solutions, you are able to identify it as well as invent ways to solve a problem or fill a need without micromanagement. The successful person in this job will not only be creative, but also enjoy being creative and solving open-ended problems which may change day-by-day. Detail-oriented: This focus is a big part of excellence, consistency, and quality. Excellent grammar and spelling matter for both good communication as well as the image of the company that we put forward. About Oklo travel requirements: Oklo requires remote employees to travel to headquarters (Santa Clara, CA) twice a quarter annually, based on business or team needs, including attendance at team meetings, off-sites, and other company events or gatherings. About Oklo compensation: Salary: $140,000 - $160,000 Salary may fall outside of the range provided and will be dependent on applicant experience. Oklo offers robust compensation packages including competitive pay, equity, performance bonuses, 401k, health insurance, FSA, flexible work hours, flexible time off and other benefits. This position may involve access to information subject to U.S. export control laws. Only applicants who meet the definition of a U.S. person under applicable laws may be eligible. About Oklo Inc.: Oklo Inc. is developing fast fission power plants to deliver clean, reliable, and affordable energy at scale; establishing a domestic supply chain for critical radioisotopes; and advancing nuclear fuel recycling to convert nuclear waste into clean energy. Oklo was the first to receive a site use permit from the U.S. Department of Energy for a commercial advanced fission plant, was awarded fuel material from Idaho National Laboratory, and submitted the first custom combined license application for an advanced reactor to the U.S. Nuclear Regulatory Commission. Oklo is also developing advanced fuel recycling technologies in collaboration with the U.S. Department of Energy and U.S. National Laboratories. #CHOP: Oklo's Values Collaboration: We go further, together. We bring diverse perspectives, listen actively, and build trust through transparency and respect. We work across disciplines, sharing ownership to turn complex challenges into shared successes. Humility: We are team players who act for the good of the company and for the world. We are focused on our mission, not personal recognition. Ownership: We take pride in what we do and how we do it. We are proactive in finding solutions and see tasks through to completion. We are committed to delivering on our promises to provide clean, reliable, and affordable energy. Pathfinding: We chart new ground where no path exists by approaching challenges with curiosity, courage, and creativity while navigating ambiguity.

A Security Engineer at Oklo is responsible for assessing, designing, and justifying the effectiveness of site security at facilities possessing special nuclear material. The role requires a creative mindset to envision challenges against a security system and develop justifications for control measures. | Candidates should have a bachelor's degree or similar technical experience, familiarity with firearms and explosives, and experience with regulatory compliance. Knowledge of U.S. nuclear regulations and strong problem-solving skills are essential. | Thanks for your interest in Oklo! We are searching for a Security Engineer to join our team. We are looking to fill this position immediately. Description A Security Engineer at Oklo is responsible for assessing, designing, and justifying the effectiveness of site security at facilities possessing special nuclear material. The work of an Oklo Security Engineer is a comprehensive role that demands a creative mindset, able to envision challenges against a security system and develop the justification of control measures that provide an adequate assurance of protection. Design and compliance of security systems responsible for the protection of special nuclear material involves a comfort with navigating U.S. nuclear regulations and guidance to produce defensible security plans against complex challenges. As a member of the greater engineering organization at Oklo, collaboration is a necessity. In the realm of security, significant breadth and appetite for understanding system interdependency is a must for security specialists expected to justify adequate protective strategies across a nuclear facility of interrelated systems. Responsibilities Passionate about clean energy, the environment, and making advanced fission a reality Willing and able to learn quickly and to think differently in a highly regulated and prescriptive industry Able to assess threat environments with an analytical mindset for substantiation Knowledge of 10 CFR 73 and 10 CFR 70, along with NRC Regulatory Guides and other regulatory guidance Precise communication skills, including the ability to communicate nuanced technical content in multiple forms Comfortable in a fast-paced, highly iterative startup environment Eager to work on a dynamic team, receive constructive feedback, and grow with us Flexible and open to new ideas; ability to work with a highly collaborative team Minimum Qualifications: Bachelor’s degree or similar experience in technical exposure Familiarity with the capabilities various firearms, explosives and tactical equipment Experience with regulatory compliance Experience with national threat policy Strong problem-solving skills and the ability to work effectively in multi-disciplinary teams Eligible and able to maintain access to safeguards information Bonus Qualifications: Military or law enforcement experience Recent experience with demolition methods Experience with adversary analysis or “red team planning” Experience as a force-on-force member or observer/controller Experience with tabletop and scenario development Familiarity with implementation of NIST control frameworks Current national security information background investigation or safeguards access Competencies: Passionate about clean energy, the environment, and making advanced fission a reality Willing and able to learn quickly and to think differently in a highly regulated and prescriptive industry Able to assess threat environments with an analytical mindset for substantiation Knowledge of 10 CFR 73 and 10 CFR 70, along with NRC Regulatory Guides and other regulatory guidance Precise communication skills, including the ability to communicate nuanced technical content in multiple forms Comfortable in a fast-paced, highly iterative startup environment Eager to work on a dynamic team, receive constructive feedback, and grow with us Flexible and open to new ideas; ability to work with a highly collaborative team Who you are: A startup person: You aren't driven by titles or hierarchy, and prefer efficiency to excess process. You don't need or expect to have a lot of guidance but you enjoy working in a fast-paced team. If you prefer the culture and feel of a large organization, that is great, but you likely won’t enjoy working with us! There is plenty of important work and plenty of good opportunities with organizations like that. Motivated: You are self-motivated. You bring an enthusiasm to the team, and imbue a sense of passion that goes beyond clocking in and clocking out. This isn’t about a fake or arbitrary “pieces of flair” mentality or lack of work-life balance! It is about being a part of the vision and feeling a part of reaching team goals. A team-player: Oklo genuinely is a team. We aren’t about taking credit for ourselves, and we aren’t about pushing blame to others. We do incredible things because we work as a team. An excellent communicator: We need a person who is not only technically competent but also a clear and upbeat communicator. Creative: Being creative means that when things fall outside clear scopes or processes or problems arise without clear solutions, you are able to identify it as well as invent ways to solve a problem or fill a need without micromanagement. The successful person in this job will not only be creative, but also enjoy being creative and solving open-ended problems which may change day-by-day. Detail-oriented: This focus is a big part of excellence, consistency, and quality. Excellent grammar and spelling matter for both good communication as well as the image of the company that we put forward. About Oklo compensation: Salary: $70,000-$150,000 Salary may fall outside of the range provided and will be dependent on applicant experience. Oklo offers flexible time off, equity, competitive pay, 401k, health insurance, FSA, flexible work hours, and other benefits. Preferred Location: Santa Clara, CA About Oklo Inc.: Oklo Inc. is developing fast fission power plants to deliver clean, reliable, and affordable energy at scale; establishing a domestic supply chain for critical radioisotopes; and advancing nuclear fuel recycling to convert nuclear waste into clean energy. Oklo was the first to receive a site use permit from the U.S. Department of Energy for a commercial advanced fission plant, was awarded fuel material from Idaho National Laboratory, and submitted the first custom combined license application for an advanced reactor to the U.S. Nuclear Regulatory Commission. Oklo is also developing advanced fuel recycling technologies in collaboration with the U.S. Department of Energy and U.S. National Laboratories.

Administer and optimize Siemens Teamcenter PLM environment including installation, upgrades, workflow configuration, CAD integrations, user support, security compliance, and collaboration with IT/DevOps teams. | 3+ years of Siemens Teamcenter and NX administration experience, proficiency with BMIDE, CAD integrations, database and server knowledge, troubleshooting skills, and familiarity with regulated environment compliance. | Thanks for your interest in Oklo! We are searching for a talented Teamcenter Administrator to join our team. Position Description We are seeking a Teamcenter Administrator to maintain, configure, and optimize our PLM environment in support of engineering, manufacturing, IT, and quality teams. This role involves administering Teamcenter architectures (4-tier and Active Workspace), managing workflows and data models with BMIDE, supporting CAD and enterprise system integrations, and providing user support and training. The administrator will also troubleshoot issues, monitor performance, and apply automation practices to ensure reliable, efficient, and scalable PLM operations. In addition, this role will support environment security and compliance requirements, coordinate closely with IT/DevOps to align hybrid cloud and AWS GovCloud infrastructure, and contribute to system performance tuning and scalability. The administrator will also help define and maintain cross-module workflows for revision control, document management, and change management, while creating training materials to support user adoption and onboarding. Specific responsibilities may include • Administer and maintain Siemens Teamcenter (4-tier and Active Workspace). • Support installation, upgrades, patching, and performance monitoring. • Configure workflows, access controls, lifecycles, and business rules using BMIDE. • Manage Teamcenter modules such as Requirements, Document Management, and Change Management. • Oversee integrations with CAD tools (primarily Siemens NX) and manage PLM/CAD data flows. • Provide end-user support, training, and documentation. • Contribute to automation initiatives and process improvements. • Monitor system health, maintain backups, and ensure data integrity. • Implement and monitor role-based access controls, audit logging, and compliance safeguards for regulated environments (e.g., NQA-1, SOC 2, SOX, ITAR). • Work with IT/DevOps to manage Teamcenter environments in hybrid/on-prem and AWS GovCloud infrastructure. • Assist in performance tuning, load testing, and scaling to meet the needs of growing engineering datasets. • Support standardization of document management, revision control, and change workflows across modules. • Develop modular training guides and onboarding materials to improve adoption across engineering and non-engineering teams. Minimum Qualifications • 3+ years of experience as a CAD/PLM administrator with Siemens NX and Teamcenter. • Hands-on experience with Teamcenter installation, upgrades, patching, and configuration in enterprise environments. • Proficiency with BMIDE for configuring workflows, lifecycles, access controls, and business rules. • Experience supporting CAD integrations, preferably Siemens NX, and managing PLM/CAD data flows. • Knowledge of databases (Oracle, SQL Server, PostgreSQL) and application servers (WebLogic, Tomcat, or similar). • Strong troubleshooting and root-cause analysis skills, with proven ability to implement preventive solutions. • Ability to produce clear technical documentation and deliver effective end-user training. • Strong communication and collaboration skills across engineering, IT, manufacturing, and quality teams. • Familiarity with security and compliance practices for enterprise or regulated environments. • Experience collaborating with IT or DevOps teams to support infrastructure, cloud environments, or automation of deployments. • Certification in AWS and/or Siemens NX/Teamcenter Administration is a plus. Bonus Qualifications: • Siemens Teamcenter Administration Certification. • Experience with distributed Teamcenter architectures, especially 4-tier Active Workspace. • Exposure to automation scripting, CI/CD workflows, or GitLab-based integrations. • Background in training development or structured onboarding for engineering tools. • Familiarity with Agile project workflows and cross-functional collaboration practices. • Hands-on familiarity with near-term Teamcenter modules we're implementing at Oklo: Requirements, Document Management, and Change Management; bonus for exposure to BOM/release workflows and Active Workspace configuration. Who you are: A startup person: You aren't driven by titles or hierarchy, and prefer efficiency to excess process. You don't need or expect to have a lot of guidance but you enjoy working in a fast-paced team. If you prefer the culture and feel of a large organization, that is great, but you likely won't enjoy working with us! There is plenty of important work and plenty of good opportunities with organizations like that. Motivated: You are self-motivated. You bring an enthusiasm to the team, and imbue a sense of passion that goes beyond clocking in and clocking out. This isn't about a fake or arbitrary "pieces of flair" mentality or lack of work-life balance! It is about being a part of the vision and feeling a part of reaching team goals. A team-player: Oklo genuinely is a team. We aren't about taking credit for ourselves, and we aren't about pushing blame to others. We do incredible things because we work as a team. An excellent communicator: We need a person who is not only technically competent but also a clear and upbeat communicator. Creative: Being creative means that when things fall outside clear scopes or processes or problems arise without clear solutions, you are able to identify it as well as invent ways to solve a problem or fill a need without micromanagement. The successful person in this job will not only be creative, but also enjoy being creative and solving open-ended problems which may change day-by-day. Detail-oriented: This focus is a big part of excellence, consistency, and quality. Excellent grammar and spelling matter for both good communication as well as the image of the company that we put forward. About Oklo compensation: The salary range is $100,000 - $155,000 base, depending on experience and qualifications. Oklo offers flexible time off, equity, competitive pay, 401k, health insurance, FSA, flexible work hours, and other benefits. We are looking to fill this position immediately! About Oklo Inc.: Oklo Inc. is developing fast fission power plants to deliver clean, reliable, and affordable energy at scale; establishing a domestic supply chain for critical radioisotopes; and advancing nuclear fuel recycling to convert nuclear waste into clean energy. Oklo was the first to receive a site use permit from the U.S. Department of Energy for a commercial advanced fission plant, was awarded fuel material from Idaho National Laboratory, and submitted the first custom combined license application for an advanced reactor to the U.S. Nuclear Regulatory Commission. Oklo is also developing advanced fuel recycling technologies in collaboration with the U.S. Department of Energy and U.S. National Laboratories.

The Corporate Development Manager will support the company's growth through strategic initiatives, including M&A, partnerships, and investments. This role involves financial modeling, due diligence, strategic planning, and collaboration with stakeholders. | Candidates should have 4-6 years of relevant experience in investment banking, corporate development, or similar fields. A bachelor's degree in Finance, Economics, Business, or an MBA is required, along with strong analytical and communication skills. | Thanks for your interest in Oklo! We are searching for a Corporate Development Manager to join our team. Position Description We’re looking for a highly motivated Corporate Development Manager to join our team and support the company’s growth through strategic initiatives, including M&A, partnerships, investments, and other growth opportunities. This is a high-impact role that requires strong analytical capabilities, strategic thinking, and deal execution experience. Candidates with prior experience in investment banking, corporate development, private equity, venture capital, or management consulting are strongly preferred. Key Responsibilities Financial Modeling & Valuation Build and maintain detailed financial models for target companies and transaction scenarios. Conduct valuation analyses using DCF, precedent transactions, and comparable company multiples. Due Diligence & Execution Lead and support cross-functional due diligence processes. Coordinate internal and external stakeholders, including legal, finance, product, and business teams. Assist in deal structuring, negotiations, and integration planning. Strategic Planning Support long-term corporate strategy development and execution. Prepare board materials, investment memos, and executive-level presentations. Stakeholder Collaboration Work closely with executive leadership and business unit heads to assess strategic priorities. Maintain relationships with bankers, VCs, founders, and other ecosystem players. Deal Sourcing & Analysis Identify and evaluate M&A, investment, and strategic partnership opportunities aligned with company goals. Conduct market research and competitive analysis to support strategic decision-making. Qualifications 4–6 years of relevant experience in investment banking, corporate development, private equity, venture capital, or management consulting. Demonstrated experience in transaction execution and due diligence. Excellent written and verbal communication skills. Highly organized, detail-oriented, and able to manage multiple priorities in a fast-paced environment. Passion for technology and strategic growth. Bachelor’s degree in Finance, Economics, Business, or a related field; or MBA. Strategic and analytical mindset with the ability to distill complex data into actionable insights and value-driven strategies. Proven ability to build and manage senior relationships across financial, commercial, and government sectors. Exceptional financial modeling, research, and analytical skills, with a knack for turning insights into recommendations. Passion for market trends, innovation, and competitive dynamics. Highly self-directed, with a track record of independently owning and delivering complex, cross-functional projects. Preferred Traits Entrepreneurial mindset with ability to operate independently and take initiative. Deep curiosity about markets, emerging business models, and investment trends. Prior exposure to or experience in nuclear, energy, start ups. Key characteristics for an Oklo team member: Passionate about clean energy Passionate about making advanced fission a reality Willing and able to learn quickly Willing to think differently and do things in new ways Comfortable in a fast-paced, highly-iterative startup environment Excited to think creatively, critically, and reflectively about the problems they are solving while not leaning only on what has been done before Location: Oklo is headquartered in Santa Clara, CA. Candidates based near Santa Clara, CA are preferred, but other locations may be considered for experienced applicants. Some travel is required for this position. Who you are: A startup person: You aren't driven by titles or hierarchy, and prefer efficiency to excess process. You don't need or expect to have a lot of guidance but you enjoy working in a fast-paced team. If you prefer the culture and feel of a large organization, that is great, but you likely won’t enjoy working with us! There is plenty of important work and plenty of good opportunities with organizations like that. Motivated: You are self-motivated. You bring an enthusiasm to the team, and imbue a sense of passion that goes beyond clocking in and clocking out. This isn’t about a fake or arbitrary “pieces of flair” mentality or lack of work-life balance! It is about being a part of the vision and feeling a part of reaching team goals. A team-player: Oklo genuinely is a team. We aren’t about taking credit for ourselves, and we aren’t about pushing blame to others. We do incredible things because we work as a team. An excellent communicator: We need a person who is not only technically competent but also a clear and upbeat communicator. Creative: Being creative means that when things fall outside clear scopes or processes or problems arise without clear solutions, you are able to identify it as well as invent ways to solve a problem or fill a need without micromanagement. The successful person in this job will not only be creative, but also enjoy being creative and solving open-ended problems which may change day-by-day. Detail-oriented: This focus is a big part of excellence, consistency, and quality. Excellent grammar and spelling matter for both good communication as well as the image of the company that we put forward. About Oklo Compensation: $175,000 - $225,000 base salary, performance incentives, and equity. Salary may fall outside of the range provided and will be dependent on applicant experience. Oklo offers flexible time off, equity, competitive pay, 401k, health insurance, FSA, flexible work hours, and other benefits. About Oklo Inc.: Oklo Inc. is developing fast fission power plants to deliver clean, reliable, and affordable energy at scale; establishing a domestic supply chain for critical radioisotopes; and advancing nuclear fuel recycling to convert nuclear waste into clean energy. Oklo was the first to receive a site use permit from the U.S. Department of Energy for a commercial advanced fission plant, was awarded fuel material from Idaho National Laboratory, and submitted the first custom combined license application for an advanced reactor to the U.S. Nuclear Regulatory Commission. Oklo is also developing advanced fuel recycling technologies in collaboration with the U.S. Department of Energy and U.S. National Laboratories.

Manage and grow the test engineering function, oversee test planning and execution, collaborate with engineering and regulatory teams, and ensure data quality and compliance. | Bachelor’s degree in mechanical, nuclear, electrical or related engineering, 10+ years test engineering experience with leadership, familiarity with regulated industries and test systems. | Position Description Oklo is looking for an experienced and driven leader to manage and grow our test engineering function. This role will oversee the planning, execution, and continuous improvement of test programs across Oklo’s engineering portfolio, including prototypic thermal-hydraulic facilities, sodium test systems, and component qualification testing. You will work closely with design engineering, safety analysis, and regulatory teams to ensure test data supports licensing and deployment of Oklo’s advanced reactors. As Sr. Manager, you will both help set the vision and dive into the details: building teams, developing infrastructure, and rolling up your sleeves to solve problems. You will be instrumental in ensuring Oklo’s test facilities deliver high-quality, traceable data that enables our technology to move quickly and confidently through design, licensing, and deployment. Specific responsibilities may include: Own the roadmap for Oklo’s hardware test infrastructure. Develop and maintain a structured approach for test planning, execution, and reporting that meets technical, regulatory, and safety requirements. Manage multidisciplinary teams of engineers and technicians to execute tests on time and within budget. Collaborate with design engineers to define test objectives, test acceptance criteria, and instrumentation strategies. Lead procurement and integration of major test equipment and facilities. Ensure data quality, traceability, and configuration control for all test results, with links to requirements and V&V artifacts. Build strong interfaces with safety, licensing, and regulatory teams to ensure test programs provide defensible results. Mentor and grow a high-performing test engineering team, fostering a culture of rigor, creativity, and accountability. Competencies Strategic and hands-on: able to set long-term direction while engaging in daily problem-solving. Strong technical background in thermal-hydraulic testing, component qualification, or large-scale experimental facilities. Proven ability to manage teams, schedules, budgets, and complex projects. Excellent communicator—able to bridge technical detail and high-level objectives. Demonstrated ability to implement quality and safety processes in test environments. Thrives in fast-moving environments and is motivated by building first-of-a-kind systems. Minimum Qualifications Bachelor’s degree in mechanical, nuclear, electrical, or related engineering discipline. At least 10 years of experience in test engineering, with increasing responsibility in leadership or management. Experience in developing and executing test programs in highly regulated industries (nuclear, aerospace, defense, or similar). Familiarity with instrumentation, data acquisition systems, and facility operations. Demonstrated track record of delivering complex test programs. Bonus Qualifications Master’s degree or PhD in a relevant engineering field. Experience with sodium or other alkali metal test systems. Prior experience supporting regulatory submittals with test data. Familiarity with Siemens Teamcenter or other PLM/requirements traceability tools. Strong network within the test engineering and facility operations community. Who you are: A startup person: You aren't driven by titles or hierarchy, and prefer efficiency to excess process. You don't need or expect to have a lot of guidance but you enjoy working in a fast-paced team. If you prefer the culture and feel of a large organization, that is great, but you likely won’t enjoy working with us! There is plenty of important work and plenty of good opportunities with organizations like that. Motivated: You are self-motivated. You bring an enthusiasm to the team, and imbue a sense of passion that goes beyond clocking in and clocking out. This isn’t about a fake or arbitrary “pieces of flair” mentality or lack of work-life balance! It is about being a part of the vision and feeling a part of reaching team goals. A team-player: Oklo genuinely is a team. We aren’t about taking credit for ourselves, and we aren’t about pushing blame to others. We do incredible things because we work as a team. An excellent communicator: We need a person who is not only technically competent but also a clear and upbeat communicator. Creative: Being creative means that when things fall outside clear scopes or processes or problems arise without clear solutions, you are able to identify it as well as invent ways to solve a problem or fill a need without micromanagement. The successful person in this job will not only be creative, but also enjoy being creative and solving open-ended problems which may change day-by-day. Detail-oriented: This focus is a big part of excellence, consistency, and quality. Excellent grammar and spelling matter for both good communication as well as the image of the company that we put forward. About Oklo compensation: $150,000- 180,000 Oklo offers flexible time off, equity, competitive pay, 401k, health insurance, FSA, flexible work hours, and other benefits. This position may involve access to information subject to U.S. export control laws. Only applicants who meet the definition of a U.S. person under applicable laws may be eligible. About Oklo Inc.: Oklo Inc. is developing fast fission power plants to deliver clean, reliable, and affordable energy at scale; establishing a domestic supply chain for critical radioisotopes; and advancing nuclear fuel recycling to convert nuclear waste into clean energy. Oklo was the first to receive a site use permit from the U.S. Department of Energy for a commercial advanced fission plant, was awarded fuel material from Idaho National Laboratory, and submitted the first custom combined license application for an advanced reactor to the U.S. Nuclear Regulatory Commission. Oklo is also developing advanced fuel recycling technologies in collaboration with the U.S. Department of Energy and U.S. National Laboratories.

The Systems Engineer will support the requirements management process across complex engineering efforts, ensuring requirements are well-structured and integrated into the product lifecycle. Responsibilities include leading the configuration of Siemens Teamcenter Requirements and collaborating with various teams to manage clear and verifiable requirements. | Candidates should have a Bachelor's degree in a technical field and 3+ years of experience in requirements management for complex engineering systems. Proficiency with Siemens Teamcenter and familiarity with regulated industries are preferred qualifications. | Remote Thanks for your interest in Oklo! We are searching for a Systems Engineer to join our team. Position Description Oklo is transforming the future of energy, and we’re looking for a Systems Engineer with 3-5 years of dedicated experience in requirements management within regulated industries. In this role, you will support the requirements management process across complex, multidisciplinary engineering efforts. You will be responsible for ensuring requirements are well-structured, traceable, verifiable, and integrated into our product lifecycle. Your work will support the design and deployment of Oklo's products and services. Specific responsibilities may include: Lead the configuration and use of Siemens Teamcenter Requirements for the development and management of requirements across engineering teams Collaborate with design, analysis, and regulatory teams to define and manage clear, verifiable, and traceable requirements Develop and maintain requirement hierarchies, traceability matrices, and verification plans Drive consistency and quality of requirements across technical disciplines, helping ensure compliance with regulatory and safety standards Train and support team members in the use of Siemens Teamcenter Requirements and best practices in requirements development Leverage systems thinking knowledge and expertise to support system owners/responsible engineers in ensuring system interfaces/ICDs are clearly defined and executed Champion requirements change control and configuration management processes Competencies Organized: Organized and proactive in managing information and tasks Passion: Passionate about clean energy and making advanced fission a reality Analytical: Ability to think in structured, hierarchical frameworks Detail-Oriented: Strong attention to detail with a drive for clarity and precision Effective Communication: Excellent written and verbal communication skills Minimum Qualifications Bachelor's degree in a technical field, such as nuclear, mechanical, or aerospace engineering. 3+ years of experience in a requirements management role for complex engineering systems Strong communication and organizational skills, with a proven ability to work across diverse technical teams Bonus Qualifications Proficiency with Siemens Teamcenter and TcRequirements, including configuration, customization, and end-user support Advanced degree in engineering or systems engineering Familiarity with systems engineering standards such as INCOSE and experience applying MBSE principles Experience in highly regulated industries (e.g. aerospace, nuclear, automotive, defense) Who you are: A startup person: You aren't driven by titles or hierarchy, and prefer efficiency to excess process. You don't need or expect to have a lot of guidance but you enjoy working in a fast-paced team. If you prefer the culture and feel of a large organization, that is great, but you likely won’t enjoy working with us! There is plenty of important work and plenty of good opportunities with organizations like that. Motivated: You are self-motivated. You bring an enthusiasm to the team, and imbue a sense of passion that goes beyond clocking in and clocking out. This isn’t about a fake or arbitrary “pieces of flair” mentality or lack of work-life balance! It is about being a part of the vision and feeling a part of reaching team goals. A team-player: Oklo genuinely is a team. We aren’t about taking credit for ourselves, and we aren’t about pushing blame to others. We do incredible things because we work as a team. An excellent communicator: We need a person who is not only technically competent but also a clear and upbeat communicator. Creative: Being creative means that when things fall outside clear scopes or processes or problems arise without clear solutions, you are able to identify it as well as invent ways to solve a problem or fill a need without micromanagement. The successful person in this job will not only be creative, but also enjoy being creative and solving open-ended problems which may change day-by-day. Detail-oriented: This focus is a big part of excellence, consistency, and quality. Excellent grammar and spelling matter for both good communication as well as the image of the company that we put forward. About Oklo compensation Salary: $90,000 - $130,000 Salary may fall outside of the range provided and will be dependent on applicant experience. Oklo offers flexible time off, equity, competitive pay, 401k, health insurance, FSA, flexible work hours, and other benefits. About Oklo Inc.: Oklo Inc. is developing fast fission power plants to deliver clean, reliable, and affordable energy at scale; establishing a domestic supply chain for critical radioisotopes; and advancing nuclear fuel recycling to convert nuclear waste into clean energy. Oklo was the first to receive a site use permit from the U.S. Department of Energy for a commercial advanced fission plant, was awarded fuel material from Idaho National Laboratory, and submitted the first custom combined license application for an advanced reactor to the U.S. Nuclear Regulatory Commission. Oklo is also developing advanced fuel recycling technologies in collaboration with the U.S. Department of Energy and U.S. National Laboratories.

The Neutronics Analysis Engineer is responsible for defining, developing, and executing neutronics analyses to support reactor design and safety assurance. This role involves collaboration with the design team to establish requirements and implement models and methods for various analyses. | Candidates should have a Bachelor's, Master's, or PhD in a technical field, preferably nuclear engineering, with experience in reactor design and analysis. Proficiency in Monte Carlo and deterministic codes, as well as fluency in Python and experience with high performance computing systems, is highly recommended. | Thanks for your interest in Oklo! We are searching for a Neutronics Analysis Engineer to work with our engineering team and help us wrangle the neutrons. Position Description The Neutronics Analysis Engineer is responsible for defining, developing, and executing in-core and ex-core neutronics analyses to support reactor design, performance evaluation, and safety assurance. This role involves working closely with the broader design team to solicit and capture requirements, establish the scope of neutronic evaluations, and implement appropriate models and methods. Areas of analysis include, but are not limited to, criticality, depletion, activation, and shielding. The engineer will also support verification and validation activities and contribute to licensing and regulatory interactions by providing technically sound and defensible neutronics analyses. Specific responsibilities may include: Perform the complete range of actions involved in supporting core design and fuel cycle analysis using Monte Carlo and deterministic codes on Oklo reactors. Perform calculations and analyses in Monte Carlo based codes such as Serpent, MCNP, SCALE, and OpenMC. Perform calculations and analyses with fast reactor deterministic codes such as DIF3D, PERSENT. Support the qualification and verification of neutronic analyses, including validation against experiments and benchmarks. Be aware of and familiar with fast reactor core design and analysis work being performed internationally, as well as related benchmark calculations and experiments being performed internationally Provide technical feedback to quick-iterating design teams. Document work using modern tools and techniques, and write well-written, thoughtful technical reports. Competencies We are looking for a neutronics engineer that is: Passionate about clean energy Passionate about making advanced fission a reality Willing and able to learn quickly Knowledgeable about fast reactor design Highly skilled with Monte Carlo neutronics tools such as SERPENT, MCNP, SCALE and Open-MC Skilled with deterministic fast reactor tools, or wiling and eager to learn Eager to work on a dynamic team, receive constructive feedback, and grow with us Willing to think differently and do things in new ways Comfortable in a fast-paced, highly iterative startup environment Excited to think creatively, critically, and reflectively about the problems they are solving, while not leaning only on what has been done before Willing to propose novel and creative solutions to technical problems An excellent writer who can write in modern active voice, so make your cover letter compelling and write it well! Able to communicate technical content and results verbally Who you are: A startup person. You aren't driven by titles or hierarchy, and prefer efficiency to excess process. You don't need or expect to have a lot of guidance but you enjoy working in a fast-paced team. If you prefer the culture and feel of a large organization, that is great, but you likely won’t enjoy working with us! There is plenty of important work and plenty of good opportunities with organizations like that. Motivated: You are self-motivated. You bring an enthusiasm to the team, and imbue a sense of passion that goes beyond clocking in and clocking out. This isn’t about a fake or arbitrary “pieces of flair” mentality or lack of work-life balance! It is about being a part of the vision and feeling a part of reaching team goals. A team-player: Oklo genuinely is a team. We aren’t about taking credit for ourselves, and we aren’t about pushing blame to others. We do incredible things because we work as a team. An excellent communicator: We need a person who is not only technically competent but also a clear and upbeat communicator. Creative: being creative means that when things fall outside clear scopes or processes or problems arise without clear solutions, you are able to identify it as well as invent ways to solve a problem or fill a need without micromanagement. The successful person in this job will not only be creative, but also enjoy being creative and solving open-ended problems which may change day-by-day. Detail-oriented: this focus is a big part of excellence, consistency, and quality. Even excellent grammar and spelling matter for both good communication as well as the image of the company that we put forward. Minimum Qualifications: If you have experience and expertise in reactor design, apply! We also think the following are good indicators of qualifications to do this job: Bachelors, Masters, or PhD in a technical field, such as nuclear engineering, with experience in reactor design and analysis (Masters or PhD may be preferable) Fluency with Python Experience with modern object oriented languages, preferably C++ Proficiency with high performance computing systems Experience with fast reactor design and analysis is highly recommended Proficiency with MCNP and SERPENT is highly recommended Proficiency with ORNL’s SCALE code system (TRITON, KENO, SAMPLER, etc.) is recommended. Proficiency with Argonne's ARC codes (MC2, DIF3D, etc.) is recommended About Oklo compensation: Salary: $102,000-$225,000 Salary may fall outside of the range provided and will be dependent on applicant experience. Oklo offers untracked paid time off, competitive pay, equity, 401k, health insurance, FSA, flexible work hours, and other benefits. We are looking to fill this position immediately! About Oklo Inc.: Oklo Inc. is developing fast fission power plants to deliver clean, reliable, and affordable energy at scale; establishing a domestic supply chain for critical radioisotopes; and advancing nuclear fuel recycling to convert nuclear waste into clean energy. Oklo was the first to receive a site use permit from the U.S. Department of Energy for a commercial advanced fission plant, was awarded fuel material from Idaho National Laboratory, and submitted the first custom combined license application for an advanced reactor to the U.S. Nuclear Regulatory Commission. Oklo is also developing advanced fuel recycling technologies in collaboration with the U.S. Department of Energy and U.S. National Laboratories.

Manage and improve the nuclear quality assurance program, lead audits, oversee corrective actions, collaborate with engineering and regulatory teams, and support continuous improvement initiatives. | 5-10 years quality assurance experience in regulated industries with at least 2 years managing teams, technical degree or equivalent experience, lead auditor qualification in NQA-1, and strong communication and problem-solving skills. | Position Description: The Internal Quality Assurance Program Manager reports to the Oklo Head of Nuclear Quality Assurance and is responsible for the development, implementation, and continuous improvement of the Oklo NQA-1-based quality assurance program, specifically as it relates to the management and oversight of internal activities within the scope of the quality assurance program. This role is critical to ensuring that all Oklo activities associated with design, construction, and operation activities are compliant governing quality requirements. The Internal Quality Assurance Program Manager will work closely with cross-functional teams—including engineering, procurement, and regulatory affairs—to establish quality benchmarks, provide oversight of quality assurance program area, and implement corrective actions as needed. The role requires a strong understanding of nuclear industry standards, excellent communication skills, and a proactive approach to problem-solving. Specific responsibilities may include: Managing audit schedules and leading internal quality audits to ensure compliance with regulatory requirements and internal standards Administration of the company’s Corrective Action Program (CAP), including conducting root cause evaluations, and training of personnel. Reviewing procurement documents, contracts, and specifications for alignment with quality assurance requirements Collaborating with engineering and project teams to ensure internal deliverables meet technical and regulatory expectations Developing and delivering quality training to internal stakeholders and team members Support the development of new quality assurance program areas as the company’s work progresses, Preparing detailed reports and metrics related to performance, audit findings, and quality trends Supporting continuous improvement initiatives Traveling to support various company initiatives (up to 25%) Competencies: We are looking for an Internal Quality Assurance Program Manager who is: Detail-oriented and able to manage a wide variety of concurrent projects Capable of using sound judgment and discretion in evaluating issues and problems Passionate about clean energy An optimist at heart Passionate about making advanced fission a reality Willing and able to learn quickly Willing to think differently and do things in new ways Comfortable in a fast-paced, highly iterative startup environment Excited to think creatively, critically, and reflectively about the problems they are solving, while not leaning only on what has been done before Willing to propose novel and creative solutions to technical problems An excellent writer who can write in a modern, active voice—make your cover letter compelling and write it well! Able to communicate technical content and results in written and verbal formats to a diverse audience Experience Level: Experienced: 5–10 years of quality assurance or program implementation experience in a regulated industry (e.g., nuclear, aerospace, automotive, defense) At least 2 years of experience managing people and teams, with demonstrated ability to lead cross-functional groups, mentor staff, and influence decision-making at various organizational levels Proven track record of leading audits, implementing corrective actions, and driving continuous improvement initiatives Experience in a startup or fast-paced environment is a plus, especially where resourcefulness, autonomy, and adaptability are essential to success Comfortable working with internal company stakeholders and regulatory bodies Minimum Qualifications: A bachelor’s degree from an accredited university in a technical, scientific, or engineering discipline. (In lieu of a degree, 8 years of progressively responsible experience in a quality assurance or related technical role may be credited.) Previous or current qualification as a Lead Auditor within an ASME NQA-1-based quality assurance program, with a strong understanding of NQA-1 requirements and their application to supplier quality management Demonstrated ability to interpret technical drawings, specifications, and procurement documents for compliance purposes Familiarity with regulatory frameworks relevant to the nuclear industry, such as NRC, DOE, or international equivalents Strong written and verbal communication skills, with the ability to document findings, prepare audit reports, and communicate quality concerns clearly and professionally Proficiency with Microsoft Office and other basic digital tools used for quality documentation and data analysis Bonus Qualifications: Working knowledge of Commercial Grade Dedication practices and implementation strategies, particularly in complex or high-risk procurement environments Experience establishing new programs and processes within design and construction organizations Familiarity with industry-specific quality management software systems (e.g., enterprise QMS platforms) and digital audit tools Understanding of international quality standards and practices, including ISO 9001 or similar frameworks, and their integration with NQA-1 systems Experience drafting or contributing to regulatory filings or technical justifications related to quality assurance Who you are: A startup person: You aren't driven by titles or hierarchy, and prefer efficiency to excess process. You don't need or expect to have a lot of guidance but you enjoy working in a fast-paced team. If you prefer the culture and feel of a large organization, that is great, but you likely won’t enjoy working with us! There is plenty of important work and plenty of good opportunities with organizations like that. Motivated: You are self-motivated. You bring an enthusiasm to the team, and imbue a sense of passion that goes beyond clocking in and clocking out. This isn’t about a fake or arbitrary “pieces of flair” mentality or lack of work-life balance! It is about being a part of the vision and feeling a part of reaching team goals. A team-player: Oklo genuinely is a team. We aren’t about taking credit for ourselves, and we aren’t about pushing blame to others. We do incredible things because we work as a team. An excellent communicator: We need a person who is not only technically competent but also a clear and upbeat communicator. Creative: Being creative means that when things fall outside clear scopes or processes or problems arise without clear solutions, you are able to identify it as well as invent ways to solve a problem or fill a need without micromanagement. The successful person in this job will not only be creative, but also enjoy being creative and solving open-ended problems which may change day-by-day. Detail-oriented: This focus is a big part of excellence, consistency, and quality. Excellent grammar and spelling matter for both good communication as well as the image of the company that we put forward. About Oklo compensation: $150,000-170,000 Oklo offers flexible time off, equity, competitive pay, 401k, health insurance, FSA, flexible work hours, and other benefits. About Oklo Inc.: Oklo Inc. is developing fast fission power plants to deliver clean, reliable, and affordable energy at scale; establishing a domestic supply chain for critical radioisotopes; and advancing nuclear fuel recycling to convert nuclear waste into clean energy. Oklo was the first to receive a site use permit from the U.S. Department of Energy for a commercial advanced fission plant, was awarded fuel material from Idaho National Laboratory, and submitted the first custom combined license application for an advanced reactor to the U.S. Nuclear Regulatory Commission. Oklo is also developing advanced fuel recycling technologies in collaboration with the U.S. Department of Energy and U.S. National Laboratories.

The Advanced NX CAD/CAE Specialist will support engineering teams by optimizing workflows and productivity through advanced NX tools. Responsibilities include system administration, user support, customization, data management, and cross-functional collaboration. | Candidates must have 6+ years of experience with Siemens NX and Teamcenter, along with expert-level proficiency in CAD and PLM processes. Familiarity with AWS GovCloud and strong problem-solving skills are also required. | Thanks for your interest in Oklo! We are searching for an Advanced NX CAD/CAE Specialist to join our team. Position Description We are seeking an Advanced NX CAD/CAE Specialist with deep expertise in Siemens NX to serve as a technical toolsmith and key support resource for our engineering teams. This role supports engineers in creating and managing large-scale assemblies, maintaining modeling standards, and leveraging advanced NX tools (WAVE linker, interpart linking, configurations) to optimize workflows and productivity. Knowledge of Teamcenter integration is essential, as you will help align CAD and PLM processes, ensure data integrity, and support change management across engineering and manufacturing. This position is highly collaborative, working across analysis, manufacturing, IT, and quality teams to maintain seamless CAD/CAE integration, resolve modeling or performance issues, and provide training and best practices. Specific responsibilities may include: System Administration: Install, configure, and maintain Siemens NX CAD within Teamcenter PLM on secure AWS GovCloud with VDI access. Manage upgrades, patches, licensing, and backend stability. User Support & Training: Serve as the go-to NX expert, providing technical assistance, troubleshooting, and leading training sessions on advanced CAD practices and best practices. Customization & Process Optimization: Develop NX workflows, automation scripts, templates, and modeling standards to improve efficiency, productivity, and data quality; maintain clear documentation of processes and configurations. Data & Configuration Management: Ensure CAD/PLM data integrity, security, and backups; oversee BOMs, product configurations, and engineering change workflows for full traceability. Advanced NX Expertise: Apply WAVE geometry linker, interpart linking, Part Families, and PMI to streamline design work, enforce standards, and support team collaboration. Large Assembly Management: Create and maintain complex assemblies that are stable, efficient, and accurate. Technical Drawings & Standards: Produce high-quality 2D drawings using ASME Y14.5 GD&T; integrate PMI into 3D models to deliver complete technical data packages for manufacturing and inspection. Provide feedback to engineers where designs must be adapted for manufacturability and assembly. CAE Integration: Prepare NX models for thermal, structural, and multiphysics analyses by simplifying geometry, ensuring mesh-ready designs, and enabling smooth CAE handoff. Cross-Functional Collaboration: Work with IT, QA, manufacturing, and supply chain teams to align CAD/CAE strategies with business objectives and design-for-manufacturability principles. Problem Solving & Mentorship: Diagnose performance issues and modeling challenges; mentor engineers and share best practices across the organization. Minimum Qualifications: 6+ years of experience as a CAD/PLM administrator with Siemens NX and Teamcenter. Expert-level proficiency in Siemens NX (3D modeling, drawings, and large assembly management). Demonstrated expertise in ASME Y14.5 GD&T and Product Manufacturing Information (PMI). Hands-on experience managing complex engineering data and workflows in Teamcenter PLM (BOMs, ECNs, release processes). Familiarity with integration of CAD/PLM into ERP/MES systems. Experience with CAD data migration and system transition planning. Strong problem-solving ability and ability to troubleshoot CAD performance issues. Familiarity with AWS GovCloud, VDI environments, and cloud-based CAD/PLM deployment. Strong collaboration and communication skills across engineering, manufacturing, IT, and QA teams. Certifications in AWS and/or Siemens NX/Teamcenter Administration are a plus. Bonus Qualifications: Experience with GitLab CI/CD pipelines or similar continuous integration tools. Familiarity with FEA and simulation workflows (e.g., NASTRAN, NX Advanced Simulation). Programming and automation experience with scripting languages (Python, NX Open API). Knowledge of Design for Manufacturability (DFM) and Design for Assembly (DFA) principles. Who you are: A startup person: You aren't driven by titles or hierarchy, and prefer efficiency to excess process. You don't need or expect to have a lot of guidance but you enjoy working in a fast-paced team. If you prefer the culture and feel of a large organization, that is great, but you likely won’t enjoy working with us! There is plenty of important work and plenty of good opportunities with organizations like that. Motivated: You are self-motivated. You bring an enthusiasm to the team, and imbue a sense of passion that goes beyond clocking in and clocking out. This isn’t about a fake or arbitrary “pieces of flair” mentality or lack of work-life balance! It is about being a part of the vision and feeling a part of reaching team goals. A team-player: Oklo genuinely is a team. We aren’t about taking credit for ourselves, and we aren’t about pushing blame to others. We do incredible things because we work as a team. An excellent communicator: We need a person who is not only technically competent but also a clear and upbeat communicator. Creative: Being creative means that when things fall outside clear scopes or processes or problems arise without clear solutions, you are able to identify it as well as invent ways to solve a problem or fill a need without micromanagement. The successful person in this job will not only be creative, but also enjoy being creative and solving open-ended problems which may change day-by-day. Detail-oriented: This focus is a big part of excellence, consistency, and quality. Excellent grammar and spelling matter for both good communication as well as the image of the company that we put forward. About Oklo compensation: The salary range is $100,000-$155,000 base, depending on experience and qualifications. Oklo offers flexible time off, equity, competitive pay, 401k, health insurance, FSA, flexible work hours, and other benefits. We are looking to fill this position immediately! This position may involve access to information subject to U.S. export control laws. Only applicants who meet the definition of a U.S. person under applicable laws may be eligible. About Oklo Inc.: Oklo Inc. is developing fast fission power plants to deliver clean, reliable, and affordable energy at scale; establishing a domestic supply chain for critical radioisotopes; and advancing nuclear fuel recycling to convert nuclear waste into clean energy. Oklo was the first to receive a site use permit from the U.S. Department of Energy for a commercial advanced fission plant, was awarded fuel material from Idaho National Laboratory, and submitted the first custom combined license application for an advanced reactor to the U.S. Nuclear Regulatory Commission. Oklo is also developing advanced fuel recycling technologies in collaboration with the U.S. Department of Energy and U.S. National Laboratories.

Thermal-Hydraulics Engineers are responsible for the design, analysis, and development of fast reactor systems. This includes performing thermal-hydraulics analyses and contributing to the qualification and validation of nuclear thermal-hydraulics analysis tools. | Candidates should have a Bachelor's, Master's, or Ph.D. in Nuclear Engineering, Mechanical Engineering, or a related field, along with proficiency in thermal-hydraulics analysis methods. Strong problem-solving skills and excellent communication abilities are essential. | Thanks for your interest in Oklo! We are searching for a Thermal-Hydraulics Engineer to join our team. Position Description Thermal-Hydraulics Engineers are responsible for playing a crucial role in the design, analysis, and development of our fast reactor systems. You will be responsible for performing thermal-hydraulics analyses, utilizing state-of-the-art codes and methods, and contributing to the qualification and validation of our nuclear thermal-hydraulics analysis tools. Specific responsibilities may include: Modeling thermal-hydraulic systems using codes such as SAS4A/SASSYS-1, SAM, GOTHIC, or Flomaster Performing subchannel analysis using codes such as MOOSE-Subchannel or DASSH Developing analytical and computational methods and models for core and systems thermal hydraulics Participating in verification and validation of nuclear thermal hydraulics analysis tools Collaborating cross-functionally to define design requirements and provide technical feedback to quick-iterating design teams Documenting work using modern tools and techniques, and write well-written, thoughtful technical reports Who you are: A startup person: You aren't driven by titles or hierarchy, and prefer efficiency to excess process. You don't need or expect to have a lot of guidance but you enjoy working in a fast-paced team. If you prefer the culture and feel of a large organization, that is great, but you likely won’t enjoy working with us! There is plenty of important work and plenty of good opportunities with organizations like that. Motivated: You are self-motivated. You bring an enthusiasm to the team, and imbue a sense of passion that goes beyond clocking in and clocking out. This isn’t about a fake or arbitrary “pieces of flair” mentality or lack of work-life balance! It is about being a part of the vision and feeling a part of reaching team goals. A team-player: Oklo genuinely is a team. We aren’t about taking credit for ourselves, and we aren’t about pushing blame to others. We do incredible things because we work as a team. An excellent communicator: We need a person who is not only technically competent but also a clear and upbeat communicator. Creative: Being creative means that when things fall outside clear scopes or processes or problems arise without clear solutions, you are able to identify it as well as invent ways to solve a problem or fill a need without micromanagement. The successful person in this job will not only be creative, but also enjoy being creative and solving open-ended problems which may change day-by-day. Detail-oriented: This focus is a big part of excellence, consistency, and quality. Excellent grammar and spelling matter for both good communication as well as the image of the company that we put forward. Minimum Qualifications: Bachelor's, Master's, or Ph.D. in Nuclear Engineering, Mechanical Engineering, or a related field Proficiency with thermal-hydraulics (thermal fluids) analysis methods Core competencies in heat transfer, fluid dynamics, and thermodynamics first principles Strong problem-solving skills and the ability to work effectively in a collaborative team environment Excellent written and verbal communication skills Bonus Qualifications: Proficiency in one or more of the mentioned analysis codes (SAS4A/SASSYS-1, SAM, GOTHIC, Flomaster, MOOSE-SC, DASSH) or similar (TRACE, RELAP, COBRA-TF) Familiarity with methods development, code qualification, and verification/validation processes in nuclear thermal hydraulics Competency with modern software engineering practices and programming languages Experience with CI/CD computing environments Experience with high-fidelity fluid dynamics analysis About Oklo compensation: Salary: $73,000-$157,000 Salary may fall outside of the range provided and will be dependent on applicant experience. Oklo offers flexible time off, equity, competitive pay, 401k, health insurance, FSA, flexible work hours, and other benefits. We are looking to fill this position immediately! About Oklo Inc.: Oklo Inc. is developing fast fission power plants to deliver clean, reliable, and affordable energy at scale; establishing a domestic supply chain for critical radioisotopes; and advancing nuclear fuel recycling to convert nuclear waste into clean energy. Oklo was the first to receive a site use permit from the U.S. Department of Energy for a commercial advanced fission plant, was awarded fuel material from Idaho National Laboratory, and submitted the first custom combined license application for an advanced reactor to the U.S. Nuclear Regulatory Commission. Oklo is also developing advanced fuel recycling technologies in collaboration with the U.S. Department of Energy and U.S. National Laboratories.

The Safety Analysis Engineer is responsible for designing and developing analyses that form the safety bases for Oklo’s reactor systems. This includes reviewing regulatory documents, developing technical strategies, and collaborating with other engineers on licensing deliverables. | Candidates should have a degree in a technical field and proficiency in thermal-hydraulics analysis. Experience with systems-level analysis codes and reactor transient analysis methods is highly recommended. | Thanks for your interest in Oklo! We are searching for a Safety Analysis Engineer to join our team. Position Description The Safety Analysis Engineer is responsible for designing and developing analyses that form the safety bases that will be incorporated in the license application for Oklo’s reactor systems. This position includes review of regulatory document and codes, developing technical strategies, designing and executing engineering analyses, conducting modeling and simulation, and crafting documentation. Additionally, the team member in this position collaborates closely with other regulatory and design engineers, aiding in the execution of key design and licensing deliverables. Specific responsibilities may include the following: Performing safety analysis using quantitative and qualitative methodologies Developing safety bases Working collaboratively with an interdisciplinary team to establish functional, performance, safety, and other facility requirements, and to engineer effective optimized mitigations Executing licensing projects and contributing strategically to licensing deliverables Managing projects for an interdisciplinary team of engineers Developing analytical and computational methods and models Documenting work using modern tools and techniques, and writing well-written, thoughtful technical reports Competencies We are looking for a Safety Analysis Engineer that is: Passionate about clean energy Passionate about making advanced fission a reality Experienced with building formal safety bases Willing and able to learn quickly Willing to think differently and do things in new ways Comfortable in a fast-paced, highly iterative startup environment Able to communicate technical content and results in written form and verbally Who you are: A startup person: You aren't driven by titles or hierarchy, and prefer efficiency to excess process. You don't need or expect to have a lot of guidance but you enjoy working in a fast-paced team. If you prefer the culture and feel of a large organization, that is great, but you likely won’t enjoy working with us! There is plenty of important work and plenty of good opportunities with organizations like that. Motivated: You are self-motivated. You bring an enthusiasm to the team, and imbue a sense of passion that goes beyond clocking in and clocking out. This isn’t about a fake or arbitrary “pieces of flair” mentality or lack of work-life balance! It is about being a part of the vision and feeling a part of reaching team goals. A team-player: Oklo genuinely is a team. We aren’t about taking credit for ourselves, and we aren’t about pushing blame to others. We do incredible things because we work as a team. An excellent communicator: We need a person who is not only technically competent but also a clear and upbeat communicator. Creative: Being creative means that when things fall outside clear scopes or processes or problems arise without clear solutions, you are able to identify it as well as invent ways to solve a problem or fill a need without micromanagement. The successful person in this job will not only be creative, but also enjoy being creative and solving open-ended problems which may change day-by-day. Detail-oriented: This focus is a big part of excellence, consistency, and quality. Excellent grammar and spelling matter for both good communication as well as the image of the company that we put forward. Minimum Qualifications Proficiency with thermal-hydraulics analysis Bachelors, Masters, or PhD in a technical field, such as nuclear, mechanical, or aerospace engineering Experience with systems-level analysis codes such as SAS4A/SASSYS-1, SAM, RELAP, TRACE, GOTHIC, or equivalent is highly recommended Experience with reactor transient analysis methods Fluency with Python Bonus Qualifications Core competencies in heat transfer, fluid dynamics, and thermodynamics first principles Professional experience developing or amending safety case analyses on high-hazard or highly-regulated facilities Prior experience developing or amending safety bases and associated documentation for NRC-licensed or DOE-authorized nuclear facilities Experience with specific safety analyses (e.g., steam link break or fuel relocation analysis) Knowledgeable about fast reactors and fuel cycle activities Competency with modern software engineering practices and programming languages Experience with CI/CD computing environments About Oklo compensation: Salary: $80,000-$185,000 Salary may fall outside of the range provided and will be dependent on applicant experience. Oklo offers flexible time off, equity, competitive pay, 401k, health insurance, FSA, flexible work hours, and other benefits. About Oklo Inc.: Oklo Inc. is developing fast fission power plants to deliver clean, reliable, and affordable energy at scale; establishing a domestic supply chain for critical radioisotopes; and advancing nuclear fuel recycling to convert nuclear waste into clean energy. Oklo was the first to receive a site use permit from the U.S. Department of Energy for a commercial advanced fission plant, was awarded fuel material from Idaho National Laboratory, and submitted the first custom combined license application for an advanced reactor to the U.S. Nuclear Regulatory Commission. Oklo is also developing advanced fuel recycling technologies in collaboration with the U.S. Department of Energy and U.S. National Laboratories.

The Regulatory Engineer will navigate the regulatory framework for licensing advanced fission technologies and participate in the engineering design of those technologies. Responsibilities include preparing licensing documentation, supporting regulatory activities, and performing design engineering work. | Candidates should have experience in a technical field, with a strong emphasis on understanding the regulatory framework for advanced reactor licensing. Excellent communication skills and a passion for clean energy are essential. | Thanks for your interest in Oklo! We are searching for a Regulatory Engineer to join our team. Position Description The Regulatory Engineer is responsible for both navigating the regulatory framework for licensing advanced fission technologies, as well as participating in the engineering design of those same technologies. From a regulatory and licensing perspective, the Regulatory Engineer is expected to develop an in-depth knowledge of the Nuclear Regulatory Commission (NRC) requirements for advanced reactor licensing, with an appreciation for the Oklo philosophy to approaching complex regulatory challenges. From an engineering perspective, the Regulatory Engineer is expected to contribute to the design development of Oklo advanced reactor technologies. Specific areas of design work will be determined by experience, background, and interest. Specific responsibilities may include: Responsibilities will differ depending on your background. Prepare, review, and maintain licensing documentation (e.g. Final Safety Analysis Report) Plan, organize, and perform complex assignments in a team environment Support or manage deliverables for a variety of internal and external regulatory activities Interface with technical engineering, including reviewing technical material Perform design engineering work: provide technical feedback to quick-iterating design teams; document work using modern tools and techniques; and write well-written, thoughtful, technical reports Support or lead resolution of key strategic licensing issue Competencies We are looking for a Regulatory Engineer that is: Passionate about clean energy Passionate about making advanced fission a reality Willing and able to learn quickly Eager to work on a dynamic team, receive constructive feedback, and grow with us Willing to think differently and do things in new ways Comfortable in a fast-paced, highly iterative startup environment Excited to think creatively, critically, and reflectively about the problems they are solving, while not leaning only on what has been done before Eager to understand the complex regulatory framework for advanced reactor licensing Willing to propose novel and creative solutions to technical and regulatory licensing challenges An excellent writer who can write in modern active voice, so make your cover letter compelling and write it well! Able to communicate technical content and results verbally to a broad Who you are: A startup person: You aren't driven by titles or hierarchy, and prefer efficiency to excess process. You don't need or expect to have a lot of guidance but you enjoy working in a fast-paced team. If you prefer the culture and feel of a large organization, that is great, but you likely won’t enjoy working with us! There is plenty of important work and plenty of good opportunities with organizations like that. Motivated: You are self-motivated. You bring an enthusiasm to the team, and imbue a sense of passion that goes beyond clocking in and clocking out. This isn’t about a fake or arbitrary “pieces of flair” mentality or lack of work-life balance! It is about being a part of the vision and feeling a part of reaching team goals. A team-player: Oklo genuinely is a team. We aren’t about taking credit for ourselves, and we aren’t about pushing blame to others. We do incredible things because we work as a team. An excellent communicator: We need a person who is not only technically competent but also a clear and upbeat communicator. Creative: Being creative means that when things fall outside clear scopes or processes or problems arise without clear solutions, you are able to identify it as well as invent ways to solve a problem or fill a need without micromanagement. The successful person in this job will not only be creative, but also enjoy being creative and solving open-ended problems which may change day-by-day. Detail-oriented: This focus is a big part of excellence, consistency, and quality. Excellent grammar and spelling matter for both good communication as well as the image of the company that we put forward. Minimum Qualifications Qualifications will differ depending on your background, but experience in a technical field (not just nuclear engineering!) is expected. About Oklo compensation: Salary: $82,000-$195,000 Salary may fall outside of the range provided and will be dependent on applicant experience. Oklo offers flexible time off, equity, competitive pay, 401k, health insurance, FSA, flexible work hours, and other benefits. About Oklo Inc.: Oklo Inc. is developing fast fission power plants to deliver clean, reliable, and affordable energy at scale; establishing a domestic supply chain for critical radioisotopes; and advancing nuclear fuel recycling to convert nuclear waste into clean energy. Oklo was the first to receive a site use permit from the U.S. Department of Energy for a commercial advanced fission plant, was awarded fuel material from Idaho National Laboratory, and submitted the first custom combined license application for an advanced reactor to the U.S. Nuclear Regulatory Commission. Oklo is also developing advanced fuel recycling technologies in collaboration with the U.S. Department of Energy and U.S. National Laboratories.

The DevOps Engineer will enhance development processes, ensure high-quality software delivery, and maintain compliance standards. Responsibilities include managing infrastructure, developing CI/CD pipelines, and collaborating across teams. | Candidates should have a Bachelor's degree in a relevant field and at least 3 years of experience in a DevOps or related role. Proficiency in Python and experience with AWS and CI/CD tools are essential. | Join us in pioneering the next generation of nuclear reactors! We are searching for a DevOps Engineer to join our team. You'll leverage your software and infrastructure skills to support the design and deployment of advanced fission power technology. Come be a part of powering the future with clean, reliable, affordable energy. Position Description This role will be critical in enhancing our development processes, ensuring high-quality software delivery, and maintaining compliance standards. We support a variety of internal “customers” and use software/automation to help ensure that other teams can do their job and that the trains run on time. Our team is young and building out our processes and capabilities. You will have the opportunity to help shape the trajectory of engineering infrastructure at Oklo. Specific responsibilities may include DevOps Engineers at Oklo play a critical role in enabling software and infrastructure development across engineering and compliance domains. Responsibilities may include: Designing, building, and managing on-premise and cloud infrastructure. Developing and maintaining CI/CD pipelines for deployment and reactor simulation workflows. Implementing compliance measures and tooling across development workflows. Enabling CAD infrastructure and integrating CAD tooling into the CI/CD design and simulation processes. Monitoring and optimizing system performance and troubleshooting issues as they arise. Documenting processes, configurations, and workflows for knowledge sharing. Contributing to design discussions and RFCs, and producing clear technical documentation. Collaborating effectively across teams, balancing competing priorities, and driving projects forward independently in the face of ambiguity. Minimum Qualifications We’d like to see a track record of the following, based on your past roles and experience: Bachelor's degree in Computer Science, Engineering or similar (or equivalent industry experience). 3+ years of experience in a DevOps role, SRE role, or Software Engineering role with a significant infrastructure component. Fluent in Python. Experience integrating with Siemens NX CAD and NXOpen. Software engineering fundamentals and best practices: testing, version control, system design, etc. Experience working with cloud concepts, in particular AWS services (VPC, EC2, S3, IAM, CloudFormation, Lambda). Experience designing, setting up, and managing CI/CD infrastructure (eg. GitLab, Jenkins, GitHub Actions). Strong IT/Ops fundamentals with proficiency in Linux/Unix administration, virtualization technologies, and core networking concepts. Bonus Qualifications Experience working as a member of a distributed, remote team. Experience with Gitlab, including Gitlab CI/CD. Experience working with containerization technologies (Docker/Kubernetes). Experience working with infrastructure-as-code tooling (Ansible/Puppet/Chef, Terraform). Experience building systems that integrate with third-party tools and APIs. Experience with modern security standards and tools. Background in nuclear energy or renewable energy systems, with experience in regulatory compliance or nuclear engineering. Who you are: A startup person: You aren't driven by titles or hierarchy, and prefer efficiency to excess process. You don't need or expect to have a lot of guidance but you enjoy working in a fast-paced team. If you prefer the culture and feel of a large organization, that is great, but you likely won’t enjoy working with us! There is plenty of important work and plenty of good opportunities with organizations like that. Motivated: You are self-motivated. You bring an enthusiasm to the team, and imbue a sense of passion that goes beyond clocking in and clocking out. This isn’t about a fake or arbitrary “pieces of flair” mentality or lack of work-life balance! It is about being a part of the vision and feeling a part of reaching team goals. A team-player: Oklo genuinely is a team. We aren’t about taking credit for ourselves, and we aren’t about pushing blame to others. We do incredible things because we work as a team. An excellent communicator: We need a person who is not only technically competent but also a clear and upbeat communicator. Creative: Being creative means that when things fall outside clear scopes or processes or problems arise without clear solutions, you are able to identify it as well as invent ways to solve a problem or fill a need without micromanagement. The successful person in this job will not only be creative, but also enjoy being creative and solving open-ended problems which may change day-by-day. Detail-oriented: This focus is a big part of excellence, consistency, and quality. Excellent grammar and spelling matter for both good communication as well as the image of the company that we put forward. About Oklo compensation: Salary: $85,000-$155,000 Oklo offers flexible time off, equity, competitive pay, 401k, health insurance, FSA, flexible work hours, and other benefits. We are looking to fill this position immediately! About Oklo Inc.: Oklo Inc. (NYSE: OKLO) is a fast fission clean power technology and nuclear fuel recycling company developing fast fission power plants to provide clean, reliable, and affordable energy at scale. Oklo received a site use permit from the U.S. Department of Energy, was awarded fuel material from Idaho National Laboratory, submitted the first advanced fission custom combined license application to the Nuclear Regulatory Commission, and is developing advanced fuel recycling technologies in collaboration with the U.S. Department of Energy and U.S. National Laboratories.

Mechanical Analyst Engineers are responsible for the analysis of mechanical components as part of the power plant design. They perform rigorous mechanical analyses and collaborate with cross-functional teams to drive design decisions. | Candidates must have a Bachelor's degree in a relevant engineering discipline and at least 4 years of industry experience in mechanical or structural analysis. Proven experience with FEA tools and strong communication skills are also required. | Thanks for your interest in Oklo! We are searching for a passionate, highly-analytical, and detail-oriented Mechanical Analyst Engineer to join our engineering team. Position Description: Mechanical Analyst Engineers at Oklo are responsible for the analysis of mechanical components as part of the power plant design. This role is ideal for a mechanical engineer who thrives on solving complex problems through first-principles thinking, rapid iteration hand calculations, and finite element analysis (FEA) when the project requires. You will play a critical role in the progression and optimization of mechanical designs, working closely with design, manufacturing, and testing teams as well as coordinating with external vendors for additional analysis support. The ideal candidate will demonstrate a strong foundation in fundamental mechanics and strength of materials, with additional expertise in areas such as dynamics, creep, fatigue, and heat transfer. A key aspect of this role includes producing clear, traceable, and reviewable documentation of analytical work, and using your results to recommend design changes or other next steps. You will also contribute to the development and maintenance of in-house analysis methodologies and best practices to support consistency, scalability, and knowledge sharing across the engineering team. Specific responsibilities may include: Perform rigorous mechanical analyses across all levels of fidelity from hand calculations and textbook formulas to highly detailed Finite Element Analysis (FEA) Evaluate structural performance for stress, creep, fatigue, vibration, temperature limits, and other failure modes Interpret and apply relevant engineering standards and codes (e.g., ASME, ASCE, AISC) to establish appropriate design limits and acceptance criteria Develop clear, concise, and technically sound documentation of engineering methodologies, analysis results, and design justifications Summarize mechanical analysis results in written documents and presentation slides, translating complex data into concise summaries of key findings (e.g., peak stresses, safety margins) and actionable design revision recommendations, and present those results to management and various stakeholders Collaborate with cross-functional teams, including design, manufacturing, quality, and test engineering to drive design decisions and ensure robust product development Support the creation and refinement of product requirements Plan and execute validation and verification activities, including designing and overseeing physical test programs to validate engineering assumptions and design requirements Competencies: Passionate about advancing clean energy technologies, with a strong belief in the potential of next-generation fission Well-versed in structural mechanics, design principles, and analytical methods—across both simulation and practical applications Eager to contribute to a high-performing engineering team, open to feedback, and committed to continuous technical growth Quick to learn and unafraid to question assumptions—ready to explore unconventional approaches to complex challenges Comfortable navigating the pace, ambiguity, and evolution of an innovative startup environment Brings a thoughtful, systems-level perspective to mechanical problems—balancing creativity, rigor, and first-principles thinking Communicates technical analyses clearly and concisely, with strong writing skills and a modern, active voice Minimum Qualifications: Bachelor’s or higher degree in a relevant engineering discipline (e.g., mechanical, aerospace, materials) 4+ years of industry experience performing mechanical or structural analysis within sectors such as such as energy, aerospace, automotive, defense, industrial machinery, or advanced manufacturing Proven experience in structural analysis using FEA tools (e.g., Ansys, Abaqus, COMSOL) Demonstrated ability to write comprehensive technical documentation and reports Excellent communication and collaboration skills in a multidisciplinary engineering environment Bonus Qualifications: Master's or PhD in engineering Strong programming skills for automating analysis workflows—preferably Python, with good software development practices Familiarity with the ASME Boiler and Pressure Vessel Code Section III, Division 1 or 5 Section VIII, Division 2 Nuclear-specific code cases Experience developing and managing product requirements and associated test and verification plans Familiarity with configuration management and version control systems (e.g., Git, SVN, etc.) Who you are: A startup person: You aren't driven by titles or hierarchy, and prefer efficiency to excess process. You don't need or expect to have a lot of guidance but you enjoy working in a fast-paced team. If you prefer the culture and feel of a large organization, that is great, but you likely won’t enjoy working with us! There is plenty of important work and plenty of good opportunities with organizations like that. Motivated: You are self-motivated. You bring an enthusiasm to the team, and imbue a sense of passion that goes beyond clocking in and clocking out. This isn’t about a fake or arbitrary “pieces of flair” mentality or lack of work-life balance! It is about being a part of the vision and feeling a part of reaching team goals. A team-player: Oklo genuinely is a team. We aren’t about taking credit for ourselves, and we aren’t about pushing blame to others. We do incredible things because we work as a team. An excellent communicator: We need a person who is not only technically competent but also a clear and upbeat communicator. Creative: Being creative means that when things fall outside clear scopes or processes or problems arise without clear solutions, you are able to identify it as well as invent ways to solve a problem or fill a need without micromanagement. The successful person in this job will not only be creative, but also enjoy being creative and solving open-ended problems which may change day-by-day. Detail-oriented: This focus is a big part of excellence, consistency, and quality. Excellent grammar and spelling matter for both good communication as well as the image of the company that we put forward. About Oklo compensation: Salary: $90,000-$150,000 Salary may fall outside of the range provided and will be dependent on applicant experience. Oklo offers flexible time off, equity, competitive pay, 401k, health insurance, FSA, flexible work hours, and other benefits. About Oklo Inc.: Oklo Inc. is developing fast fission power plants to deliver clean, reliable, and affordable energy at scale; establishing a domestic supply chain for critical radioisotopes; and advancing nuclear fuel recycling to convert nuclear waste into clean energy. Oklo was the first to receive a site use permit from the U.S. Department of Energy for a commercial advanced fission plant, was awarded fuel material from Idaho National Laboratory, and submitted the first custom combined license application for an advanced reactor to the U.S. Nuclear Regulatory Commission. Oklo is also developing advanced fuel recycling technologies in collaboration with the U.S. Department of Energy and U.S. National Laboratories.

The Neutronics Engineer will perform reactor design calculations, including core design and fuel cycle analyses, and design irradiation targets for radioisotope production. Responsibilities also include using Monte Carlo and deterministic codes for various reactor analyses and providing technical feedback to design teams. | Candidates should have experience in reactor design and analysis, with a preference for advanced degrees in nuclear engineering. Proficiency in Monte Carlo tools and programming languages like Python and C++ is essential. | Thank you for your interest in Oklo! We are searching for a Neutronics Engineer to join our radioisotopes team. Position Description: The Neutronics Engineer is responsible for performing reactor design calculations that include core design and fuel cycle analyses. Other work includes the design of irradiation targets for radioisotope production and how those targets affect the local and macro reactor core system (self-shielding, fuel consumption, production yield, etc.) Specific responsibilities may include: Perform the complete range of actions involved in core design and fuel cycle analysis using Monte Carlo and deterministic codes on Oklo/Atomic Alchemy reactors. These include core design, core sizing, core optimization, reactivity feedback, core lifetime, and criticality analyses, among others. Perform calculations and analyses in Monte Carlo based codes such as MCNP, Serpent, and OpenMC. Perform calculations and analyses with deterministic codes such as CASMO/SIMULATE or HELIOS. Be aware of and familiar with research reactor core design and analysis work being performed internationally, as well as related benchmark calculations and experiments being performed internationally. Provide technical feedback to quick-iterating design teams. Document work using modern tools and techniques, and write well-written, thoughtful technical reports. Competencies: We are looking for a Neutronics Engineer that is: Passionate about making advanced industrial-scale radioisotope production Knowledgeable about research reactor design Highly skilled with Monte Carlo neutronics tools such as MCNP, SERPENT, and Open-MC Skilled with deterministic fast reactor tools, or wiling and eager to learn Eager to work on a dynamic team, receive constructive feedback, and grow with us Passionate about making “radioisotope shortage” a bygone phrase An optimist at heart Willing and able to learn quickly Willing to think differently and do things in new ways Comfortable in a fast-paced, highly iterative startup environment Excited to think creatively, critically, and reflectively about the problems they are solving while not leaning only on what has been done before Willing to propose novel and creative solutions to technical problems An excellent writer who can write in a modern active voice, so make your cover letter compelling and write it well! Able to communicate technical content and results verbally Experience level: Intermediate (2-5yr) or Experienced (5-10yr) Minimum Qualifications: If you have experience and expertise in reactor design, apply! We also think the following are good indicators of qualifications to do this job: Bachelors, Masters, or PhD in a technical field, such as nuclear engineering, with experience in reactor design and analysis (Masters or PhD may be preferable) Fluency with Python Experience with modern object oriented languages, preferably C++ Proficiency with high performance computing systems Proficiency with MCNP and SERPENT is highly recommended Bonus Qualifications: Hands-on experience in a reactor setting. Not required, but it is a bonus to not have purely theoretical/modeling experience. Who you are: A startup person: You aren't driven by titles or hierarchy, and prefer efficiency to excess process. You don't need or expect to have a lot of guidance but you enjoy working in a fast-paced team. If you prefer the culture and feel of a large organization, that is great, but you likely won’t enjoy working with us! There is plenty of important work and plenty of good opportunities with organizations like that. Motivated: You are self-motivated. You bring an enthusiasm to the team, and imbue a sense of passion that goes beyond clocking in and clocking out. This isn’t about a fake or arbitrary “pieces of flair” mentality or lack of work-life balance! It is about being a part of the vision and feeling a part of reaching team goals. A team-player: Oklo genuinely is a team. We aren’t about taking credit for ourselves, and we aren’t about pushing blame to others. We do incredible things because we work as a team. An excellent communicator: We need a person who is not only technically competent but also a clear and upbeat communicator. Creative: Being creative means that when things fall outside clear scopes or processes or problems arise without clear solutions, you are able to identify it as well as invent ways to solve a problem or fill a need without micromanagement. The successful person in this job will not only be creative, but also enjoy being creative and solving open-ended problems which may change day-by-day. Detail-oriented: This focus is a big part of excellence, consistency, and quality. Even excellent grammar and spelling matter for both good communication as well as the image of the company that we put forward. About Oklo compensation: $102,000-$190,000 Oklo offers flexible time off, equity, competitive pay, 401k, health insurance, FSA, flexible work hours, and other benefits. We are looking to fill this position immediately! About Oklo Inc.: Oklo Inc. is developing fast fission power plants to deliver clean, reliable, and affordable energy at scale; establishing a domestic supply chain for critical radioisotopes; and advancing nuclear fuel recycling to convert nuclear waste into clean energy. Oklo was the first to receive a site use permit from the U.S. Department of Energy for a commercial advanced fission plant, was awarded fuel material from Idaho National Laboratory, and submitted the first custom combined license application for an advanced reactor to the U.S. Nuclear Regulatory Commission. Oklo is also developing advanced fuel recycling technologies in collaboration with the U.S. Department of Energy and U.S. National Laboratories.

Lead or support the design of radiological hot cells for used nuclear fuel recycling, focusing on systems like shielding and remote handling. Collaborate with a multidisciplinary team to ensure the integration of critical systems into the facility. | A Bachelor's degree in Mechanical or Nuclear Engineering and 5+ years of relevant experience are required. Strong knowledge of remote handling systems and radiation shielding principles is essential. | Thanks for your interest in Oklo! We are searching for a radiological Hot Cell Design Engineer to join our dynamic fuel recycling engineering group, which is designing and deploying a modern nuclear fuel recycling facility. This is a rare opportunity to contribute to the design and development of one of the most advanced radiological hot cell systems ever. Position Description: As a Hot Cell Design Engineer at Oklo, you will help shape a highly specialized, remotely-operable hot cell environment that enables the safe, efficient processing of used nuclear fuel (UNF). You’ll work collaboratively with a multidisciplinary team of mechanical, nuclear, chemical, and controls engineers to integrate critical systems such as shielding, containment, and remote operations into an industrial-scale recycling facility. Key Responsibilities: Lead or support the mechanical and systems design of radiological hot cells used in UNF recycling, including shielding, ventilation, confinement, and remote handling systems Define equipment and material layouts, including material transfer pathways and maintenance access strategies Work with radiation modeling and safety analysis specialists to develop shielding requirements and establish design constraints Integrate robotic and remote handling technologies (e.g., manipulators, cameras, cranes, etc.) into cell design Contribute to the structural evaluation of confinement systems, ensuring compliance with fire protection, external hazard, and natural phenomena hazard requirements Collaborate with structural, HVAC, instrumentation, and process engineers to ensure seamless integration across all hot cell systems Participate in Failure Modes and Effects Analyses (FMEA), hazard analyses, and radiological safety assessments Contribute to design reviews, procurement specifications, and installation and commissioning plans Support prototyping, testing, and commissioning of hot cell subsystems Competencies: We are looking for a Hot Cell Design Engineer that is: Passionate about clean energy, fuel recycling, and efficient stewardship of natural resources An optimist at heart Passionate about making advanced fission a reality Willing and able to learn quickly Willing to think differently and do things in new ways Comfortable in a fast-paced, highly-iterative startup environment Excited to think creatively, critically, and reflectively about the problems they are solving while not leaning only on what has been done before Willing to propose novel and creative solutions to technical problems An excellent writer who can write in a modern active voice (so make your cover letter compelling and write it well!) Able to communicate technical content and results verbally Minimum Qualifications: Bachelor’s degree or higher in Mechanical Engineering, Nuclear Engineering, or a related discipline 5+ years of experience in radiological facility design, glovebox or hot cell engineering, or radiological material handling Strong working knowledge of remote handling systems, robotics, or manipulator technologies Understanding of radiation shielding principles, criticality safety, and radiological protection standards Excellent written and verbal communication skills Demonstrated ability to collaborate on cross-functional teams and integrate feedback from engineering, licensing, and safety Strong systems engineering intuition and problem-solving capabilities U.S. citizenship or permanent residency status (due to export control requirements) Bonus Qualifications: Experience with hot cells used in nuclear fuel cycle facilities, isotope production, or defense applications Proficiency with CAD software (e.g., NX, SolidWorks, Inventor) and engineering drawing standards Knowledge of NRC and/or DOE regulatory requirements and nuclear standards for nuclear facilities Prior hands-on experience with mockups, prototyping, or commissioning of radiological systems Experience with vendor coordination, A&E firms, and project management Who you are: A startup person: You aren't driven by titles or hierarchy, and prefer efficiency to excess process. You don't need or expect to have a lot of guidance but you enjoy working in a fast-paced team. If you prefer the culture and feel of a large organization, that is great, but you likely won’t enjoy working with us! There is plenty of important work and plenty of good opportunities with organizations like that. Motivated: You are self-motivated. You bring an enthusiasm to the team, and imbue a sense of passion that goes beyond clocking in and clocking out. This isn’t about a fake or arbitrary “pieces of flair” mentality or lack of work-life balance! It is about being a part of the vision and feeling a part of reaching team goals. A team-player: Oklo genuinely is a team. We aren’t about taking credit for ourselves, and we aren’t about pushing blame to others. We do incredible things because we work as a team. An excellent communicator: We need a person who is not only technically competent but also a clear and upbeat communicator. Creative: Being creative means that when things fall outside clear scopes or processes or problems arise without clear solutions, you are able to identify it as well as invent ways to solve a problem or fill a need without micromanagement. The successful person in this job will not only be creative, but also enjoy being creative and solving open-ended problems which may change day-by-day. Detail-oriented: This focus is a big part of excellence, consistency, and quality. Even excellent grammar and spelling matter for both good communication as well as the image of the company that we put forward. About Oklo compensation: Salary: $80,000-$180,000 Salary may fall outside of the range provided and will be dependent on applicant experience. Oklo offers flexible time off, equity, competitive pay, 401k, health insurance, FSA, flexible work hours, and other benefits. We are looking to fill this position immediately! About Oklo Inc.: Oklo Inc. is developing fast fission power plants to deliver clean, reliable, and affordable energy at scale; establishing a domestic supply chain for critical radioisotopes; and advancing nuclear fuel recycling to convert nuclear waste into clean energy. Oklo was the first to receive a site use permit from the U.S. Department of Energy for a commercial advanced fission plant, was awarded fuel material from Idaho National Laboratory, and submitted the first custom combined license application for an advanced reactor to the U.S. Nuclear Regulatory Commission. Oklo is also developing advanced fuel recycling technologies in collaboration with the U.S. Department of Energy and U.S. National Laboratories.

The Safety Analysis Engineer will support the development of the safety basis for a nuclear fuel recycling facility, including hazard identification and evaluation. Responsibilities also include developing safety basis documents and supporting various safety programs. | Candidates should have a Bachelor's degree in a relevant engineering discipline and 3-5 years of experience in nuclear safety or similar environments. Familiarity with HAZOP and FMEA methods is required, with additional qualifications being a plus. | Thanks for your interest in Oklo! We are searching for a Safety Analysis Engineer to join our engineering team. Position Description: We are seeking a skilled Safety Analysis Engineer to support the development of the safety basis for a first-of-a-kind used nuclear fuel recycling facility. You will support the identification and evaluation of hazards/accidents, the designation of Items Relied On For Safety (IROFS), and the development of management measures. Additionally, you will support radiological, subcriticality, chemical, and fire safety programs. Specific responsibilities may include: Develop and maintain safety basis documents according to applicable Nuclear Regulatory Commission regulation and guidance Support Integrated Safety Analysis (ISA), Criticality Safety Evaluations, Fire Hazard Analysis (FHA), and Natural Phenomena Hazard (NPH) analysis Identify and evaluate radiological, criticality, chemical, fire, and natural phenomena hazards Identify and evaluate accident sequences using both inductive and deductive methods Perform deterministic consequence severity calculations for radiological/chemical source term and dose Perform likelihood calculations using qualitative and semi-quantitative (e.g., layers of protection analysis) Designate items relied on for safety (IROFS) for the prevention and mitigation of accidents Develop management measures to ensure adequate availability and reliability of IROFS Competencies: We are looking for a Safety Analysis Engineer that is: Passionate about clean energy An optimist at heart Passionate about making advanced fission a reality Willing and able to learn quickly Willing to think differently and do things in new ways Comfortable in a fast-paced, highly iterative startup environment Excited to think creatively, critically, and reflectively about the problems they are solving while not leaning only on what has been done before Willing to propose novel and creative solutions to technical problems An excellent writer who can write in a modern active voice, so make your cover letter compelling and write it well! Able to communicate technical content and results verbally Experience level: Bachelor’s degree in chemical engineering, mechanical engineering, nuclear engineering, or related discipline; a master's or Ph.D. is highly desirable 3-5 years of experience in experience in nuclear safety, process safety, or similar high-hazard environments. Minimum Qualifications: Hazard and Operability Study (HAZOP) and Failure Modes and Effects (FMEA) PHA methods Bonus Qualifications: NRC licensed fuel cycle facility safety basis development Consequence severity analysis using RADTRAD, MELCOR/MACCS, ARCON and PAVAN Event tree and fault tree analysis NUREG-1513, NUREG-1520, NUREG-1718 and relevant regulatory frameworks Who you are: A startup person: You aren't driven by titles or hierarchy, and prefer efficiency to excess process. You don't need or expect to have a lot of guidance but you enjoy working in a fast-paced team. If you prefer the culture and feel of a large organization, that is great, but you likely won’t enjoy working with us! There is plenty of important work and plenty of good opportunities with organizations like that. Motivated: You are self-motivated. You bring an enthusiasm to the team, and imbue a sense of passion that goes beyond clocking in and clocking out. This isn’t about a fake or arbitrary “pieces of flair” mentality or lack of work-life balance! It is about being a part of the vision and feeling a part of reaching team goals. A team-player: Oklo genuinely is a team. We aren’t about taking credit for ourselves, and we aren’t about pushing blame to others. We do incredible things because we work as a team. An excellent communicator: We need a person who is not only technically competent but also a clear and upbeat communicator. Creative: Being creative means that when things fall outside clear scopes or processes or problems arise without clear solutions, you are able to identify it as well as invent ways to solve a problem or fill a need without micromanagement. The successful person in this job will not only be creative, but also enjoy being creative and solving open-ended problems which may change day-by-day. Detail-oriented: This focus is a big part of excellence, consistency, and quality. Even excellent grammar and spelling matter for both good communication as well as the image of the company that we put forward. About Oklo compensation: $85,000-$165,000 annually Oklo offers flexible time off, equity, competitive pay, 401k, health insurance, FSA, flexible work hours, and other benefits. We are looking to fill this position immediately! About Oklo Inc.: Oklo Inc. is developing fast fission power plants to deliver clean, reliable, and affordable energy at scale; establishing a domestic supply chain for critical radioisotopes; and advancing nuclear fuel recycling to convert nuclear waste into clean energy. Oklo was the first to receive a site use permit from the U.S. Department of Energy for a commercial advanced fission plant, was awarded fuel material from Idaho National Laboratory, and submitted the first custom combined license application for an advanced reactor to the U.S. Nuclear Regulatory Commission. Oklo is also developing advanced fuel recycling technologies in collaboration with the U.S. Department of Energy and U.S. National Laboratories.