Spring 2027 Software Engineering Intern New Washington, DC

The Nuclear Company; Washington, Northern (District of Columbia, KY); On-site; USD 52,000 - 62,000; Full time

Benefits offered by this job

Housing provided

Relocation assistance

401k with company match

Job summary

The Nuclear Company in Washington DC is seeking a Software Engineering Intern to contribute to NOS, the Nuclear Operating System, and help build AI-powered features for regulatory automation, cost and schedule tooling, and data integrations. You will work alongside full-time engineers and nuclear experts, delivering production-ready features during a six-month term.

Based in DC, the role offers on-site work five days a week with housing and relocation support for co-ops outside the DC metro

Qualifications

• Currently enrolled in a BS in Computer Science, Software Engineering, Computer Engineering, Mathematics, Physics, or related 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++).
• Track record of shipping working software (course projects, personal projects, internships or co-ops).
• This position requires U.S. export controls access; U.S. Person status is required; visa sponsorship is not provided.
• Willing and able to work on-site in Washington DC, five days a week, for the full six-month term.

Responsibilities

• Build new features and modules within NOS: regulatory automation, cost and schedule, supply chain, and the commercial portal.
• Develop AI-powered features: LLM- and agent-backed features, retrieval-augmented generation, and tool-calling against internal systems.
• Develop data integrations across Palantir Foundry, AWS GovCloud, and more.
• Convert prototypes into production-grade features and build field deployment tooling.
• Build automated testing and compliance infrastructure for NOS audit readiness.

Skills

Programming fundamentals

Python

TypeScript

Java

Go

Rust

C++

Shipping software

Education

BS in Computer Science or related

Tools

Palantir Foundry

AWS GovCloud

Job description

The Nuclear Companyis 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, andthe 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 recordof 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) isrequired, 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-augmentedgeneration, oragent 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 (notrequired,we teach the domain)
• Competitive compensation packages
• 401k with company match

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.

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