Careers at Thenuclearcompany

The Nuclear Company is the fastest growing AI tech-enabled startup in the nuclear and energy space, pioneering a fleet-scale approach to building the next generation of nuclear reactors. Through our design-once, build-many model, we're accelerating the deployment of safe, reliable, and affordable nuclear energy. We operate with an AI-first mindset. Every employee is expected to leverage AI, technology, and the Nuclear Operating System (NOS) as integral components of their role to improve the quality, speed, and impact of their work. We expect every team member to continuously identify opportunities to automate workflows, enhance decision-making, improve processes, and contribute to the ongoing evolution of NOS as a strategic operating capability that enables The Nuclear Company to scale with excellence. We hire people who are driven by purpose, thrive in ambiguity, and are energized by building what has never been built before. Our team combines intellectual curiosity with high agency, embraces candid feedback and continuous learning, and holds themselves and others to exceptional standards. Our values— Transparency, Responsibility, Unity, Scrappy, and Tenacity —guide how we hire, collaborate, and make decisions every day. They are not words on a wall; they are the standard by which we operate. TRUST is the foundation of our safety culture, fostering intellectual honesty, accountability, and open communication, while our values challenge every team member to execute with urgency, humility, resilience, and an unwavering commitment to our mission. About the role The QA Engineer’s first assignment is to build out TNC’s NQA-1 quality program — writing the implementing procedures that every department, from Engineering and Procurement to Construction and Licensing, will work under. The engineer partners with each department’s subject-matter experts to draft these procedures, carries them through cross-functional review, and drives them to approval and issue on schedule. As the procedure set matures and field work begins, the role shifts to core quality engineering: reviewing inspection and test procedures, setting acceptance criteria from design requirements, and placing witness and hold points in inspection and test plans. The position reports to the Senior Manager of Quality, carries the independence the work demands — including stop-work authority and direct access to the CNO — and offers a mid-career engineer the chance to help write the quality program a fleet-scale nuclear company will run on. Responsibilities Key Areas: Cross-Functional NQA-1 Program Development (near-term focus); Inspection & Test Technical Basis; Codes & Standards; Conditions Adverse to Quality; Program Interfaces & Qualifications Generate the NQA-1 program cross-functionally — author and develop Tier-3 implementing procedures with every TNC department (Procurement & Supply Chain, PMO, Engineering, Quality, Regulatory Affairs, Construction Management, Nuclear Deployment, Testing & Start-Up, Training, and the corporate functions), translating each organization’s function scope into issued procedures through SME input, cross-functional review, and approval. Author or provide SME input to procedures, records, and technical documents in the assigned discipline. Review inspection and test procedures and acceptance criteria for nuclear systems and components; verify design outputs meet specified requirements. Identify inspection requirements and the applicable codes and standards, with references; extract acceptance criteria from design with quantitative limits, specific values, and tolerances. Set witness and hold points in inspection and test plans. Support the QAPD and parent-suite artifacts maintained audit-ready, and the phased QA plans for Services, BOO project development, and JV support. Identify and report conditions adverse to quality promptly through the CAP; feed procedure-production status and quality metrics into the QA metrics pack and the CNO performance-indicator set. Maintain personal qualifications, training, and certifications current. Experience Bachelor’s degree in an engineering discipline, or 10+ years field experience in the discipline. 3+ years working under ASME NQA-1 and/or 10 CFR 50 Appendix B programs, with demonstrated procedure development — has authored implementing procedures that survived review and implementation. Proficient in the applicable codes and standards for the assigned scope (e.g., ASME NQA-1; ASME Section III/V/IX, ACI 318, AISC 360, IEEE/ISA series as applicable). Strong technical writing and cross-functional coordination — can pull SME input from any department and drive a document through a multi-reviewer approval chain on schedule. Ability to qualify to governing TNC procedures. Note: NQA-1 Lead Auditor certification is not required — audit execution is provided through a contracted, qualified audit service. Discipline depth (civil, mechanical, electrical, or NDE) shapes assigned scope as the role transitions to inspection and test engineering. Preferred Experience Nuclear new-build, construction, or commissioning experience (AP1000, SMR/MMR, or other first-of-a-kind programs). Discipline depth in civil/structural, mechanical, electrical, or NDE with the associated code sets (ACI/AISC, ASME Section III/V/IX, IEEE/ISA, SNT-TC-1A / CP-189). ASQ CQE or CQA; auditor training or audit-team participation. Experience developing procedures in a startup or program build-out environment; EDMS and document-control workflow fluency. Familiarity with ISO 9001 / ISO 19443; metrics and dashboard tools (Excel, Power BI). Benefits Competitive compensation packages 401k with company match Medical, dental, vision plans Generous vacation policy, plus holidays Estimated Starting Salary Range The estimated starting salary range for this role is $121,000 - $143,000 annually less applicable withholdings and deductions, paid on a bi-weekly basis. The actual salary offered may vary based on relevant factors as determined in the Company’s discretion, which may include experience, qualifications, tenure, skill set, availability of qualified candidates, geographic location, certifications held, and other criteria deemed pertinent to the particular role. EEO Statement The Nuclear Company is an equal opportunity employer committed to fostering an environment of inclusion in the workplace. We provide equal employment opportunities to all qualified applicants and employees without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability, veteran status, or any other protected characteristic. We prohibit discrimination in all aspects of employment, including hiring, promotion, demotion, transfer, compensation, and termination. Export Control Certain positions at The Nuclear Company may involve access to information and technology subject to export controls under U.S. law. Compliance with these export controls may result in The Nuclear Company limiting its consideration of certain applicants. Recruiting Fraud Alert Your safety is our priority. We want to ensure your job search stays secure. Please note that the team at The Nuclear Company only communicates through official @thenuclearcompany.com email addresses. We will never ask for payments or sensitive financial information at any stage of our recruitment process. For your peace of mind, please verify all openings and submit your applications directly through our official careers page .

The Nuclear Company is the fastest growing AI tech-enabled startup in the nuclear and energy space, pioneering a fleet-scale approach to building the next generation of nuclear reactors. Through our design-once, build-many model, we're accelerating the deployment of safe, reliable, and affordable nuclear energy. We operate with an AI-first mindset. Every employee is expected to leverage AI, technology, and the Nuclear Operating System (NOS) as integral components of their role to improve the quality, speed, and impact of their work. We expect every team member to continuously identify opportunities to automate workflows, enhance decision-making, improve processes, and contribute to the ongoing evolution of NOS as a strategic operating capability that enables The Nuclear Company to scale with excellence. We hire people who are driven by purpose, thrive in ambiguity, and are energized by building what has never been built before. Our team combines intellectual curiosity with high agency, embraces candid feedback and continuous learning, and holds themselves and others to exceptional standards. Our values— Transparency, Responsibility, Unity, Scrappy, and Tenacity —guide how we hire, collaborate, and make decisions every day. They are not words on a wall; they are the standard by which we operate. TRUST is the foundation of our safety culture, fostering intellectual honesty, accountability, and open communication, while our values challenge every team member to execute with urgency, humility, resilience, and an unwavering commitment to our mission. About the role In this role, you'll be instrumental in designing, developing, and maintaining complex, safety-critical software applications. You'll work on challenging problems that directly contribute to the future of clean energy, ensuring the highest standards of performance, reliability, and regulatory compliance. Responsibilities Software Design & Development: Lead the design and development of robust, scalable, and high-quality software solutions for critical nuclear energy applications. This includes architecting new features, writing clean and efficient code, and participating in code reviews. Technical Leadership: Provide technical leadership and guidance to junior and mid-level engineers, mentoring them in best practices for software development, quality, and adherence to industry standards. System Integration: Work closely with hardware engineers, control systems engineers, and other software teams to ensure seamless integration of software components with physical systems and external interfaces. Quality & Compliance: Implement and advocate for rigorous software quality assurance practices, including comprehensive testing, debugging, and documentation, ensuring compliance with nuclear industry regulations and internal quality standards. Performance Optimization: Identify and resolve complex performance issues, ensuring our software operates efficiently and reliably under demanding conditions. Problem Solving: Tackle challenging technical problems, proposing innovative solutions and driving their implementation from concept to deployment. Documentation: Create and maintain thorough technical documentation, including design specifications, architecture diagrams, and testing protocols. Experience Bachelor's degree in Computer Science, Software Engineering, Electrical Engineering, or a closely related technical field. 4+ years of progressive experience in software development, with a strong portfolio of successfully delivered projects. Experience developing software for highly regulated, safety-critical, or mission-critical industries (e.g., nuclear, aerospace, defense, medical devices, automotive safety). Direct nuclear industry experience is highly preferred. Proficiency in one or more relevant programming languages such as JavaScript, TypeScript, or Python . Demonstrated experience with full software development life cycles (SDLCs), including Agile and Waterfall methodologies. Strong understanding of software design patterns, data structures, and algorithms. Experience with version control systems (e.g., Git) and collaborative development workflows. Expertise in designing and implementing complex software architectures. Deep understanding of software quality assurance principles and testing methodologies. Ability to debug and troubleshoot intricate software systems. Exceptional problem-solving and analytical skills. Strong written and verbal communication skills, with the ability to articulate technical concepts to diverse audiences. Ability to work effectively in a collaborative, fast-paced environment. Preferred Experience Experience building offline-capable, air-gapped, or otherwise disconnected applications, and packaging them for constrained or containerized deployment environments. Hands-on experience integrating third-party physical security systems. Experience applying AI features & ML models into production workflows. Exposure to nuclear, critical infrastructure, defense, or physical security domains. Benefits Competitive compensation packages 401k with company match Medical, dental, vision plans Generous vacation policy, plus holidays Estimated Starting Salary Range The estimated starting salary range for this role is $121,000 - $143,000 annually less applicable withholdings and deductions, paid on a bi-weekly basis. The actual salary offered may vary based on relevant factors as determined in the Company’s discretion, which may include experience, qualifications, tenure, skill set, availability of qualified candidates, geographic location, certifications held, and other criteria deemed pertinent to the particular role. EEO Statement The Nuclear Company is an equal opportunity employer committed to fostering an environment of inclusion in the workplace. We provide equal employment opportunities to all qualified applicants and employees without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability, veteran status, or any other protected characteristic. We prohibit discrimination in all aspects of employment, including hiring, promotion, demotion, transfer, compensation, and termination. Export Control Certain positions at The Nuclear Company may involve access to information and technology subject to export controls under U.S. law. Compliance with these export controls may result in The Nuclear Company limiting its consideration of certain applicants. Recruiting Fraud Alert Your safety is our priority. We want to ensure your job search stays secure. Please note that the team at The Nuclear Company only communicates through official @thenuclearcompany.com email addresses. We will never ask for payments or sensitive financial information at any stage of our recruitment process. For your peace of mind, please verify all openings and submit your applications directly through our official careers page .

The Nuclear Company is the fastest growing AI tech-startup in the nuclear and energy space, pioneering a fleet-scale approach to building the next generation of nuclear reactors. Through our design-once, build-many model, we're accelerating the deployment of safe, reliable, and affordable nuclear energy. We operate with an AI-first mindset. Every employee is expected to leverage AI, technology, and the Nuclear Operating System (NOS) as integral components of their role to improve the quality, speed, and impact of their work. We expect every team member to continuously identify opportunities to automate workflows, enhance decision-making, improve processes, and contribute to the ongoing evolution of NOS as a strategic operating capability that enables The Nuclear Company to scale with excellence. We hire people who are driven by purpose, thrive in ambiguity, and are energized by building what has never been built before. Our team combines intellectual curiosity with high agency, embraces candid feedback and continuous learning, and holds themselves and others to exceptional standards. Our values— Trust, Responsibility, Unity, Scrappiness, and Tenacity —guide how we hire, collaborate, and make decisions every day. They are not words on a wall; they are the standard by which we operate. Trust is the foundation of our safety culture, fostering intellectual honesty, accountability, and open communication, while our values challenge every team member to execute with urgency, humility, resilience, and an unwavering commitment to our mission. About the role The United States is building nuclear power again, and The Nuclear Company is writing the software that makes it possible. NOS, the Nuclear Operating System, runs the regulatory, supply chain, cost, schedule, and field work behind real reactor construction. The work matters for national security, energy independence, and the climate. You will build software that people use to build power plants. As a Software Engineering Intern, you take real scope on NOS across one of our engineering squads (product, platform, or data), and increasingly that means AI-powered software: LLM- and agent-backed features, retrieval, and tool-calling in the tools our teams use. You work next to full-time engineers and nuclear experts, ship real features to production, and see your work put to use by the teams building plants. This is a six-month co-op available in the Spring 2027 (January to June), aligned to the academic calendar. Base location is Washington DC, on-site five days a week, with full housing and relocation for co-ops outside the DC metro area. Responsibilities Build new features and full modules within NOS: regulatory automation, cost and schedule, supply chain, and the commercial portal. Build AI-powered software: LLM- and agent-backed features, retrieval-augmented generation, and tool-calling against internal systems, a growing part of the platform. Develop data integrations across Palantir Foundry, AWS GovCloud, and more. Convert build-a-thon prototypes into production-grade features and build field deployment tooling for the teams working in the field. Build the automated testing and compliance infrastructure that keeps NOS audit-ready; triage issues and root-cause failures. Required Experience Currently enrolled in a BS in Computer Science, Software Engineering, Computer Engineering, Mathematics, Physics, or a related technical field. Available for a full six-month term and returning to school afterward. Strong programming fundamentals in at least one modern language (Python, TypeScript, Java, Go, Rust, or C++). A track record of shipping working software (course projects, personal projects, or prior internships or co-ops). This position requires access to information and technology subject to U.S. export controls (including DOE 10 CFR Part 810 and NRC requirements). U.S. Person status (U.S. citizen or lawful permanent resident) is required, and TNC does not provide visa sponsorship for these roles. Willing and able to work on-site in Washington DC, five days a week, for the full six-month term. Preferred Experience Exposure to building AI-powered features: LLM APIs (OpenAI or Anthropic), retrieval-augmented generation, or agent and tool-calling. Coursework or project experience with Palantir Foundry, AWS, or another enterprise cloud platform. Familiarity with algorithms, data structures, cloud infrastructure, and modern front-end frameworks. Interest in energy, national security, industrial software, or regulated industries. Familiarity with nuclear engineering concepts (not required, we teach the domain) Benefits Competitive compensation packages Generous vacation policy, plus holidays Estimated Starting Salary Range The estimated starting rate for this role is $25.00 an hour plus a $2,000 monthly housing stipend less applicable withholdings and deductions, paid on a bi-weekly basis. The actual pay offered may vary based on relevant factors as determined in the Company’s discretion, which may include experience, qualifications, tenure, skill set, availability of qualified candidates, geographic location, certifications held, and other criteria deemed pertinent to the particular role. EEO Statement The Nuclear Company is an equal opportunity employer committed to fostering an environment of inclusion in the workplace. We provide equal employment opportunities to all qualified applicants and employees without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability, veteran status, or any other protected characteristic. We prohibit discrimination in all aspects of employment, including hiring, promotion, demotion, transfer, compensation, and termination. Export Control Certain positions at The Nuclear Company may involve access to information and technology subject to export controls under U.S. law. Compliance with these export controls may result in The Nuclear Company limiting its consideration of certain applicants. Recruiting Fraud Alert Your safety is our priority. We want to ensure your job search stays secure. Please note that the team at The Nuclear Company only communicates through official @thenuclearcompany.com email addresses. We will never ask for payments or sensitive financial information at any stage of our recruitment process. For your peace of mind, please verify all openings and submit your applications directly through our official careers page .

The Nuclear Company is the fastest growing AI tech-startup in the nuclear and energy space, pioneering a fleet-scale approach to building the next generation of nuclear reactors. Through our design-once, build-many model, we're accelerating the deployment of safe, reliable, and affordable nuclear energy. We operate with an AI-first mindset. Every employee is expected to leverage AI, technology, and the Nuclear Operating System (NOS) as integral components of their role to improve the quality, speed, and impact of their work. We expect every team member to continuously identify opportunities to automate workflows, enhance decision-making, improve processes, and contribute to the ongoing evolution of NOS as a strategic operating capability that enables The Nuclear Company to scale with excellence. We hire people who are driven by purpose, thrive in ambiguity, and are energized by building what has never been built before. Our team combines intellectual curiosity with high agency, embraces candid feedback and continuous learning, and holds themselves and others to exceptional standards. Our values— Trust, Responsibility, Unity, Scrappiness, and Tenacity —guide how we hire, collaborate, and make decisions every day. They are not words on a wall; they are the standard by which we operate. Trust is the foundation of our safety culture, fostering intellectual honesty, accountability, and open communication, while our values challenge every team member to execute with urgency, humility, resilience, and an unwavering commitment to our mission. About the role The United States is building nuclear power again, and The Nuclear Company is writing the software that makes it possible. NOS, the Nuclear Operating System, runs the regulatory, supply chain, cost, schedule, and field work behind real reactor construction. The work matters for national security, energy independence, and the climate. You will build software that people use to build power plants. As a Software Engineering Intern, you take real scope on NOS across one of our engineering squads (product, platform, or data), and increasingly that means AI-powered software: LLM- and agent-backed features, retrieval, and tool-calling in the tools our teams use. You work next to full-time engineers and nuclear experts, ship real features to production, and see your work put to use by the teams building plants. This is a 12-week Summer 2027 internship (May to August), aligned to the academic calendar. Base location is Washington DC, on-site five days a week, with full housing and relocation for interns outside the DC metro area. Responsibilities Build new features and full modules within NOS: regulatory automation, cost and schedule, supply chain, and the commercial portal. Build AI-powered software: LLM- and agent-backed features, retrieval-augmented generation, and tool-calling against internal systems, a growing part of the platform. Develop data integrations across Palantir Foundry, AWS GovCloud, and more. Convert build-a-thon prototypes into production-grade features and build field deployment tooling for the teams working in the field. Build the automated testing and compliance infrastructure that keeps NOS audit-ready; triage issues and root-cause failures Required Experience Currently enrolled in a BS in Computer Science, Software Engineering, Computer Engineering, Mathematics, Physics, or a related technical field. Available for a full six-month term and returning to school afterward. Strong programming fundamentals in at least one modern language (Python, TypeScript, Java, Go, Rust, or C++). A track record of shipping working software (course projects, personal projects, or prior internships or co-ops). This position requires access to information and technology subject to U.S. export controls (including DOE 10 CFR Part 810 and NRC requirements). U.S. Person status (U.S. citizen or lawful permanent resident) is required, and TNC does not provide visa sponsorship for these roles. Willing and able to work on-site in Washington DC, five days a week, for the full six-month term. Preferred Experience Exposure to building AI-powered features: LLM APIs (OpenAI or Anthropic), retrieval-augmented generation, or agent and tool-calling. Coursework or project experience with Palantir Foundry, AWS, or another enterprise cloud platform. Familiarity with algorithms, data structures, cloud infrastructure, and modern front-end frameworks. Interest in energy, national security, industrial software, or regulated industries. Familiarity with nuclear engineering concepts (not required, we teach the domain). Benefits Competitive compensation packages 401k with company match Medical, dental, vision plans Generous vacation policy, plus holidays Estimated Starting Salary Range The estimated starting rate for this role is $25.00 an hour plus a $2,000 monthly housing stipend less applicable withholdings and deductions, paid on a bi-weekly basis. The actual pay offered may vary based on relevant factors as determined in the Company’s discretion, which may include experience, qualifications, tenure, skill set, availability of qualified candidates, geographic location, certifications held, and other criteria deemed pertinent to the particular role. EEO Statement The Nuclear Company is an equal opportunity employer committed to fostering an environment of inclusion in the workplace. We provide equal employment opportunities to all qualified applicants and employees without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability, veteran status, or any other protected characteristic. We prohibit discrimination in all aspects of employment, including hiring, promotion, demotion, transfer, compensation, and termination. Export Control Certain positions at The Nuclear Company may involve access to information and technology subject to export controls under U.S. law. Compliance with these export controls may result in The Nuclear Company limiting its consideration of certain applicants. Recruiting Fraud Alert Your safety is our priority. We want to ensure your job search stays secure. Please note that the team at The Nuclear Company only communicates through official @thenuclearcompany.com email addresses. We will never ask for payments or sensitive financial information at any stage of our recruitment process. For your peace of mind, please verify all openings and submit your applications directly through our official careers page .

The Nuclear Company is the fastest growing AI tech-enabled startup in the nuclear and energy space, pioneering a fleet-scale approach to building the next generation of nuclear reactors. Through our design-once, build-many model, we're accelerating the deployment of safe, reliable, and affordable nuclear energy. We operate with an AI-first mindset. Every employee is expected to leverage AI, technology, and the Nuclear Operating System (NOS) as integral components of their role to improve the quality, speed, and impact of their work. We expect every team member to continuously identify opportunities to automate workflows, enhance decision-making, improve processes, and contribute to the ongoing evolution of NOS as a strategic operating capability that enables The Nuclear Company to scale with excellence. We hire people who are driven by purpose, thrive in ambiguity, and are energized by building what has never been built before. Our team combines intellectual curiosity with high agency, embraces candid feedback and continuous learning, and holds themselves and others to exceptional standards. Our values— Transparency, Responsibility, Unity, Scrappiness, and Tenacity —guide how we hire, collaborate, and make decisions every day. They are not words on a wall; they are the standard by which we operate. TRUST is the foundation of our safety culture, fostering intellectual honesty, accountability, and open communication, while our values challenge every team member to execute with urgency, humility, resilience, and an unwavering commitment to our mission. About the role The Nuclear Company is hiring an AI Engineer 1 to build test automation and quality practices for NOS, the Nuclear Operating System, that meet NQA-1 nuclear quality assurance standards. NOS is the software platform behind one of the largest nuclear buildouts in the United States, and every module it ships must meet the rigor that nuclear regulation demands. This role sits at the intersection of software quality, regulatory compliance, and AI-augmented engineering. This is a hands-on, entry-level role with a clear differentiator: you will use AI as a tool to generate, review, and improve tests, while also developing the skills to test AI-powered systems themselves. You will work alongside the Compliance/Quality/Testing Lead, ramp on NQA-1 requirements and Palantir Foundry, and help establish the verification and validation (V&V) practices that give NOS its regulatory backbone. Responsibilities Build automated test coverage (unit, integration, and end-to-end) for assigned NOS modules, using AI-assisted generation and review to accelerate coverage and catch gaps. Support NQA-1 documentation efforts for digital systems, help translate regulatory quality requirements into traceable test artifacts and evidence packages. Establish and refine defect tracking and V&V workflows alongside the Compliance/Quality/Testing Lead, ensuring traceability from requirement to test to resolution. Ramp on Palantir Foundry, the NOS architecture, and the team's AI tooling, understanding how data flows through the system and where quality gates apply. Contribute to the team's approach for testing AI-powered features within NOS, prompt regression, output validation, and behavioral consistency checks. Required Experience Computer science degree or equivalent, with 0-2 years of professional experience (internships, co-ops, and project work count). Test automation fundamentals in at least one modern framework: Playwright, Cypress, Jest, PyTest, or equivalent. Has used AI to generate, review, or improve tests in a real project, not just theoretical knowledge, but hands-on application. Strong fundamentals in at least one backend language (Python or TypeScript preferred). Good written and verbal communication, and willingness to learn the nuclear regulatory environment (NQA-1). Preferred Experience Coursework or project work testing AI/ML systems or LLM-powered applications (prompt testing, output validation, drift detection). Exposure to regulated industries where quality documentation and traceability are mandatory (nuclear, aerospace, defense, medical, financial). Experience with CI/CD pipelines and integrating automated tests into build/release workflows. Familiarity with verification and validation (V&V) concepts, requirements traceability, or formal QA processes. Exposure to Palantir Foundry or similar data/ontology platforms. Understanding of version control workflows and code review practices. Benefits Competitive compensation packages 401k with company match Medical, dental, vision plans Generous vacation policy, plus holidays Estimated Starting Salary Range The estimated starting salary range for this role is $80,000 - $150,000 annually less applicable withholdings and deductions, paid on a bi-weekly basis. The actual salary offered may vary based on relevant factors as determined in the Company’s discretion, which may include experience, qualifications, tenure, skill set, availability of qualified candidates, geographic location, certifications held, and other criteria deemed pertinent to the particular role. EEO Statement The Nuclear Company is an equal opportunity employer committed to fostering an environment of inclusion in the workplace. We provide equal employment opportunities to all qualified applicants and employees without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability, veteran status, or any other protected characteristic. We prohibit discrimination in all aspects of employment, including hiring, promotion, demotion, transfer, compensation, and termination. Export Control Certain positions at The Nuclear Company may involve access to information and technology subject to export controls under U.S. law. Compliance with these export controls may result in The Nuclear Company limiting its consideration of certain applicants. Recruiting Fraud Alert Your safety is our priority. We want to ensure your job search stays secure. Please note that the team at The Nuclear Company only communicates through official @thenuclearcompany.com email addresses. We will never ask for payments or sensitive financial information at any stage of our recruitment process. For your peace of mind, please verify all openings and submit your applications directly through our official careers page .

The Nuclear Company is the fastest growing AI tech-enabled startup in the nuclear and energy space, pioneering a fleet-scale approach to building the next generation of nuclear reactors. Through our design-once, build-many model, we're accelerating the deployment of safe, reliable, and affordable nuclear energy. We operate with an AI-first mindset. Every employee is expected to leverage AI, technology, and the Nuclear Operating System (NOS) as integral components of their role to improve the quality, speed, and impact of their work. We expect every team member to continuously identify opportunities to automate workflows, enhance decision-making, improve processes, and contribute to the ongoing evolution of NOS as a strategic operating capability that enables The Nuclear Company to scale with excellence. We hire people who are driven by purpose, thrive in ambiguity, and are energized by building what has never been built before. Our team combines intellectual curiosity with high agency, embraces candid feedback and continuous learning, and holds themselves and others to exceptional standards. Our values— Transparency, Responsibility, Unity, Scrappiness, and Tenacity —guide how we hire, collaborate, and make decisions every day. They are not words on a wall; they are the standard by which we operate. TRUST is the foundation of our safety culture, fostering intellectual honesty, accountability, and open communication, while our values challenge every team member to execute with urgency, humility, resilience, and an unwavering commitment to our mission. About the role The Nuclear Company is searching for an Application Security Engineer to help secure the software, data systems, and developer workflows that power our Nuclear Operating System, internal platforms, and mission-critical applications. This is a high-ownership role for a builder who is equally comfortable reviewing application architecture, threat modeling an API, improving GitHub security controls, and partnering directly with engineers to ship secure software quickly. You will work across product engineering, platform engineering, data science, infrastructure, and operations to embed security into the way we design, build, test, and deploy software. You will help define secure development standards, review high-impact product designs, harden CI/CD workflows, and guide teams through vulnerability remediation in a practical, risk-based way. This role reports to the Senior Manager for Application and Product Security. Responsibilities Application & Product Security Perform security reviews and threat models for NOS modules, internal tools, APIs, data workflows, AI-enabled features, and cloud-connected applications. Partner with engineering teams to identify and remediate risks across authentication, authorization, tenant isolation, input validation, secrets handling, encryption, logging, and data access. Review application designs and code changes for security issues before they become production risk. Define reusable security patterns for web applications, APIs, mobile workflows, internal platforms, and data-heavy systems. Help establish secure-by-default approaches for applications that support regulated, high-consequence infrastructure. Secure SDLC & Developer Enablement Build and improve DevSecOps practices across the GitHub-based software development lifecycle, including code scanning, dependency review, secret scanning, branch protections, CI/CD hardening, and secure developer workflows. Partner with engineering teams to create paved roads: secure templates, checklists, automation, documentation, and lightweight review processes that help teams move faster with confidence. Triage and prioritize application security findings from SAST, SCA, secrets scanning, penetration tests, code reviews, and internal assessments. Develop pragmatic vulnerability management workflows, remediation guidance, and engineering-facing metrics. Support secure coding education through design reviews, office hours, documentation, and hands-on partnership with developers. Platform, Cloud & Data Security Collaborate with cloud and platform engineers to secure AWS workloads, infrastructure-as-code, service integrations, data pipelines, and deployment workflows. Review integrations involving Palantir Foundry, partner APIs, internal data platforms, and AI-assisted engineering workflows. Help secure sensitive data flows across application, platform, and operational environments. Partner with infrastructure and developer teams to ensure application events, audit logs, and security signals are captured in ways that support investigation and response. Navigate the security expectations of a regulated nuclear energy environment, including relevant cybersecurity frameworks and critical infrastructure considerations. Cross-Functional Partnership Serve as a trusted security partner to software engineers, product managers, data engineers, infrastructure teams, and business stakeholders. Communicate risk clearly and practically, balancing security, delivery speed, product usability, and operational impact. Contribute to the application and product security roadmap as the company scales from early-stage systems to fleet-scale operations. Help build a culture of ownership, velocity, and technical rigor across engineering and cybersecurity. Experience 4+ years of experience in application security, product security, software security, or software engineering with a strong security focus. Hands-on experience reviewing, building, or securing modern software systems, including web applications, APIs, distributed systems, or cloud-native services. Strong understanding of common application security risks, including authentication, authorization, access control, injection, insecure deserialization, SSRF, secrets exposure, dependency and supply chain risk, and insecure API design. Experience with secure SDLC tooling and workflows such as GitHub Advanced Security, CodeQL, Dependabot, SAST, SCA, secret scanning, CI/CD security, or equivalent platforms. Ability to read and reason about code in at least one modern programming language such as Python, TypeScript, Go, Java, C#, or C++. Familiarity with AWS security concepts, including IAM, logging, encryption, networking, secrets management, and infrastructure-as-code. Strong communication skills and the ability to work directly with engineers to solve security problems without creating unnecessary friction. Have a strong grasp of offensive security to anticipate risks from an adversary’s perspective, not just check compliance boxes. Preferred Qualifications Experience securing software in regulated, industrial, energy, national security, aerospace, medical, or other mission-critical environments. Familiarity with AI-assisted development tools, LLM-enabled applications, prompt-injection risks, model/tool integrations, or AI software supply chain concerns. Experience with vulnerability management, penetration testing, experience with DAST tools, or incident response. Familiarity with frameworks or standards such as OWASP ASVS, OWASP Top 10, OWASP API Security Top 10, NIST CSF, NIST 800-53, SOC 2, IEC 62443, or NERC CIP. Security certifications such as AWS Certified Security – Specialty or OSWE Genuine interest in nuclear energy, critical infrastructure, hard-tech, and applying software security to physical systems. Benefits Competitive compensation packages 401k with company match Medical, dental, vision plans Generous vacation policy, plus holidays Estimated Starting Salary Range The estimated starting salary range for this role is $150,000 - $173,000 annually less applicable withholdings and deductions, paid on a bi-weekly basis. The actual salary offered may vary based on relevant factors as determined in the Company’s discretion, which may include experience, qualifications, tenure, skill set, availability of qualified candidates, geographic location, certifications held, and other criteria deemed pertinent to the particular role. EEO Statement The Nuclear Company is an equal opportunity employer committed to fostering an environment of inclusion in the workplace. We provide equal employment opportunities to all qualified applicants and employees without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability, veteran status, or any other protected characteristic. We prohibit discrimination in all aspects of employment, including hiring, promotion, demotion, transfer, compensation, and termination. Export Control Certain positions at The Nuclear Company may involve access to information and technology subject to export controls under U.S. law. Compliance with these export controls may result in The Nuclear Company limiting its consideration of certain applicants. Recruiting Fraud Alert Your safety is our priority. We want to ensure your job search stays secure. Please note that the team at The Nuclear Company only communicates through official @thenuclearcompany.com email addresses. We will never ask for payments or sensitive financial information at any stage of our recruitment process. For your peace of mind, please verify all openings and submit your applications directly through our official careers page .

The Nuclear Company is the fastest growing AI tech-enabled startup in the nuclear and energy space, pioneering a fleet-scale approach to building the next generation of nuclear reactors. Through our design-once, build-many model, we're accelerating the deployment of safe, reliable, and affordable nuclear energy. We operate with an AI-first mindset. Every employee is expected to leverage AI, technology, and the Nuclear Operating System (NOS) as integral components of their role to improve the quality, speed, and impact of their work. We expect every team member to continuously identify opportunities to automate workflows, enhance decision-making, improve processes, and contribute to the ongoing evolution of NOS as a strategic operating capability that enables The Nuclear Company to scale with excellence. We hire people who are driven by purpose, thrive in ambiguity, and are energized by building what has never been built before. Our team combines intellectual curiosity with high agency, embraces candid feedback and continuous learning, and holds themselves and others to exceptional standards. Our values— Transparency, Responsibility, Unity, Scrappiness, and Tenacity —guide how we hire, collaborate, and make decisions every day. They are not words on a wall; they are the standard by which we operate. TRUST is the foundation of our safety culture, fostering intellectual honesty, accountability, and open communication, while our values challenge every team member to execute with urgency, humility, resilience, and an unwavering commitment to our mission. About the role As a Staff Software Engineer, you will serve as a technical leader responsible for architecting and delivering software that powers critical aspects of our nuclear energy platform. You'll work at the intersection of software, engineering, and operations, solving complex problems in a highly regulated environment where reliability and safety are paramount. This role requires both strategic thinking and hands-on execution, with opportunities to influence technical direction, mentor engineers, and drive cross-functional initiatives. Your work will directly contribute to advancing clean, carbon-free energy solutions and shaping the future of the nuclear industry. Responsibilities Software Design & Development: Lead the design and development of robust, scalable, and high-quality software solutions for critical nuclear energy applications. This includes architecting new features, writing clean and efficient code, and participating in code reviews. Technical Leadership: Provide technical leadership and guidance to junior and mid-level engineers, mentoring them in best practices for software development, quality, and adherence to industry standards. System Integration: Work closely with hardware engineers, control systems engineers, and other software teams to ensure seamless integration of software components with physical systems and external interfaces. Quality & Compliance: Implement and advocate for rigorous software quality assurance practices, including comprehensive testing, debugging, and documentation, ensuring compliance with nuclear industry regulations and internal quality standards. Performance Optimization: Identify and resolve complex performance issues, ensuring our software operates efficiently and reliably under demanding conditions. Problem Solving: Tackle challenging technical problems, proposing innovative solutions and driving their implementation from concept to deployment. Documentation: Create and maintain thorough technical documentation, including design specifications, architecture diagrams, and testing protocols. Experience Bachelor's degree in Computer Science, Software Engineering, Electrical Engineering, or a closely related technical field. 7+ years of progressive experience in software development, with a strong portfolio of successfully delivered projects. Experience developing software for highly regulated, safety-critical, or mission-critical industries (e.g., nuclear, aerospace, defense, medical devices, automotive safety). Direct nuclear industry experience is highly preferred. Proficiency in one or more relevant programming languages such as JavaScript, TypeScript, or Python . Demonstrated experience with full software development life cycles (SDLCs), including Agile and Waterfall methodologies. Strong understanding of software design patterns, data structures, and algorithms. Experience with version control systems (e.g., Git) and collaborative development workflows. Expertise in designing and implementing complex software architectures. Deep understanding of software quality assurance principles and testing methodologies. Ability to debug and troubleshoot intricate software systems. Exceptional problem-solving and analytical skills. Strong written and verbal communication skills, with the ability to articulate technical concepts to diverse audiences. Ability to work effectively in a collaborative, fast-paced environment. Preferred Exerience Experience building offline-capable, air-gapped, or otherwise disconnected applications, and packaging them for constrained or containerized deployment environments. Hands-on experience integrating third-party physical security systems. Experience applying AI features & ML models into production workflows. Exposure to nuclear, critical infrastructure, defense, or physical security domains. Benefits Competitive compensation packages 401k with company match Medical, dental, vision plans Generous vacation policy, plus holidays Estimated Starting Salary Range The estimated starting salary range for this role is $150,000 - $203,000 annually less applicable withholdings and deductions, paid on a bi-weekly basis. The actual salary offered may vary based on relevant factors as determined in the Company’s discretion, which may include experience, qualifications, tenure, skill set, availability of qualified candidates, geographic location, certifications held, and other criteria deemed pertinent to the particular role. EEO Statement The Nuclear Company is an equal opportunity employer committed to fostering an environment of inclusion in the workplace. We provide equal employment opportunities to all qualified applicants and employees without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability, veteran status, or any other protected characteristic. We prohibit discrimination in all aspects of employment, including hiring, promotion, demotion, transfer, compensation, and termination. Export Control Certain positions at The Nuclear Company may involve access to information and technology subject to export controls under U.S. law. Compliance with these export controls may result in The Nuclear Company limiting its consideration of certain applicants. Recruiting Fraud Alert Your safety is our priority. We want to ensure your job search stays secure. Please note that the team at The Nuclear Company only communicates through official @thenuclearcompany.com email addresses. We will never ask for payments or sensitive financial information at any stage of our recruitment process. For your peace of mind, please verify all openings and submit your applications directly through our official careers page .