Senior Nuclear Engineer
About The Position
At Antares, our long-term mission is to make clean energy abundant from Earth to the Asteroid Belt. We’re fueled by the belief that advanced nuclear energy can strengthen our military, solve the climate crisis, elevate global living standards, and expand humanity's presence in outer space. To achieve our mission, we’re building mass-producible, inherently safe, deployable microreactors that can be used terrestrially, underwater, and in space. Formed in 2023, the Antares team hails from SpaceX, The White House, MIT, Rigetti Computing, The Air Force, General Atomics, Relativity Space, Ursa Major, and National Laboratories like Los Alamos, Idaho, and Oak Ridge. Antares has raised over $130M in venture capital from top-tier investors and has over $13M in government funding. About the Team As a member of the nuclear engineering team, you will become the responsible engineer for a key component of the Antares reactor design such as reactivity controls and instrumentation, radiation shielding, fuels, materials, thermal hydraulics, safety, or licensing. The ideal candidate has a mix of industry and academic experience, and has worked in a team-oriented environment to mature nuclear concepts. While you may have a specialty, you’re not afraid to operate as a generalist in a growing organization.
Requirements
- Master's or Ph.D. in Nuclear Engineering, Physics, or related field
- Deep experience with and understanding of MCNP, Serpent, or SCALE
- Experience with multiphysics simulations and methods (thermal-hydraulics, structural, heat transfer), reactor kinetics, safety analysis, or integrated systems modeling
Nice To Haves
- Advanced programming proficiency (Python, C++, or similar)
- Experience designing or developing high temperature gas reactors, heat pipe cooled reactors, microreactors, TRISO fuel, or other advanced reactors
- Strong leadership and mentorship skills
- Demonstrated success in regulatory processes (DOE, NRC, DoD)
- Previous experience at dynamic tech companies or startups.
Responsibilities
- Lead complex neutronics modeling and multiphysics analysis
- Responsible nuclear engineer for design and integration of components
- Mentor junior engineers
- Develop and implement modeling and simulation methods and tools
- Coordinate validation and verification activities
- Interface directly with regulatory bodies for licensing and compliance
- Spearhead prototype testing and experimental campaigns
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What This Job Offers
Job Type
Full-time
Career Level
Mid Level
Education Level
Ph.D. or professional degree
Number of Employees
11-50 employees
