Senior Nuclear Engineer (Reactor Experience)

Senior Nuclear Engineer (Reactor Experience) – Austin, Texas (On Site). Salary range $150,000 - $250,000 plus PTO, 401(k), relocation, medical, dental. Do you have hands‑on experience leading test reactor operations or similar, looking to join a fast‑paced start‑up where reactors are actively being built and you’ll have real ownership across the full build and deployment phase? Rare opportunity to step into a leadership position within a well‑funded, cutting‑edge micro‑reactor company operating at the forefront of industry‑defining nuclear innovation. You’ll lead, shape, and deliver next‑generation reactor systems from concept through to reality. With minimal bureaucracy and a true engineering‑first culture, you’ll be empowered to take ownership of critical decisions, influence reactor design and safety strategy, and directly impact live build programs. You will play a key role in bridging real‑world reactor operations with advanced design and analysis, bringing practical insight from test or research reactor environments into a highly ambitious, build‑focused start‑up setting. This role is ideal for someone who thrives in high‑performance environments, enjoys solving complex technical challenges, and wants to accelerate their career while building something meaningful from the ground up. Responsibilities Own the development of microreactors from build phase to deployment. Leverage hands‑on reactor experience to inform design, build, and operational strategy. Review, validate, and approve complex engineering calculations and safety analyses. Drive input into licensing documentation and regulatory submissions. Support system design, transient analysis, and accident scenario modelling. Mentor and develop junior engineers, contributing to a high‑performance culture. Candidate Requirements Proven experience operating or leading test reactor programs or similar environments. Strong background in nuclear systems analysis, reactor physics, or safety analysis. Proficiency with at least two of: TRACE, MELCOR, MCNP, VERA, SCALE, SERPENT. Experience reviewing and approving complex engineering calculations. Familiarity with DOE or NRC regulatory frameworks is advantageous. Highly motivated to work in a fast‑paced, start‑up environment with significant ownership. We are an equal opportunities company and welcome applications from all suitable candidates. #J-18808-Ljbffr Rise Technical Recruitment Limited