Software Engineer - NOS

The Nuclear Company is the fastest growing startup in the nuclear and energy space creating a never before seen fleet‑scale approach to building nuclear reactors. Through its design‑once, build‑many approach and coalition building across communities, regulators, and financial stakeholders, The Nuclear Company is committed to delivering safe and reliable electricity at the lowest cost, while catalyzing the nuclear industry toward rapid development in America and globally.

The Nuclear Company is hiring a Staff Software Engineer to lead the build of NOS modules and applications. You will report to the Director of Product Engineering and work in the Product Engineering squad. NOS is the software platform behind one of the largest nuclear buildouts in the United States, and this is a senior technical role that sets the standard for how the products get built.

This is a hands‑on staff‑level role. You will design and build NOS applications across desktop, mobile, and in‑field surfaces, make the hard architecture calls, and raise the engineering standard for the squad. You work with platform engineers on the layers underneath and with product engineers building alongside you.

You will write production code, lead design and code reviews, mentor other engineers, and partner with business line stakeholders to turn operational needs into working software. When something is hard or stuck, you are the engineer who drives it to a decision.

• Lead the technical build. Design and build NOS modules and applications across desktop, mobile, and in‑field surfaces, and own the hard architecture decisions.
• Set the engineering standard. Lead design and code reviews, define patterns and practices, and raise code quality across the squad.
• Build with business stakeholders. Work directly with business line owners to turn operational and regulatory needs into working software.
• Integrate with the platform. Work with platform engineers so applications use shared services, data, and the unified interface correctly.
• Mentor and multiply. Coach other engineers, unblock them, and grow the technical depth of the team.
• Drive the hard problems. Step into the toughest cross‑team technical issues and drive them to resolution.

• 8+ years building and shipping production software, with a track record at senior or staff level.
• Bachelor's or Master's in Computer Science, Software Engineering, or a related technical field, or equivalent production experience.
• Deep skills in at least one major language and stack, plus strong architecture and design judgment.
• Experience shipping applications across more than one surface (web, desktop, mobile, or embedded).
• Experience leading technical design and mentoring engineers without formal authority.
• Experience with at least one major cloud (AWS preferred) and modern CI/CD.
• Excellent written and verbal communication with engineers and business stakeholders.

• Experience in a regulated or safety‑critical industry (nuclear, aerospace, defense, energy, medical).
• Experience with mobile (iOS/Android, React Native, Flutter), XR/VR (Unity, Unreal), or digital twin and simulation.
• Experience with IoT/OT integration, computer vision, or biometrics.
• Experience building on a platform shared by multiple product teams.

• Competitive compensation packages
• 401k with company match
• Medical, dental, vision plans
• Generous vacation policy, plus holidays

The estimated starting salary range for this role is $150,000 - $196,000 annually less applicable with holdings 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.

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…