Demo

Reactor Modeling and Simulation Lead

Space Nuclear Power Corporation
Los Alamos, NM Full Time
POSTED ON 8/18/2026
AVAILABLE BEFORE 12/15/2026

SpaceNukes is looking to hire a nuclear engineer to lead the modeling and simulation of our space fission power systems.

Applicant Requirements

  • Direct experience with space fission power system design and analysis.
  • Demonstrated ability to build and run multiphysics models of space reactors and reactor power systems.
  • Experience in modeling reactor power system dynamics and control, including startup, nominal operation, and response to anticipated and postulated events.
  • Strong reactor-physics fundamentals and hands-on Monte Carlo transport experience in calculating criticality, reactivity coefficients, kinetics coefficients, control element worth, power distribution, shielding, and dose.
  • Significant heat transfer, thermal-hydraulic, thermomechanical analysis experience, and experience connecting neutronics to thermal and structural response.
  • Experience in depletion, burnup, source-term, activation, and decay-heat analysis.
  • Ability to develop, validate, and maintain in-house design and analysis tools, including familiarity with FORTRAN, Python, Perl, Excel/Visual Basic.
  • Familiarity with HEU/HALEU compact fast-spectrum reactors, heat-pipe reactors, and Stirling and Brayton power conversion.
  • U.S. person status, export-control eligibility (ITAR/EAR), security clearance desired.
  • M.S. or Ph.D. in Nuclear Engineering

Please only apply if you believe you satisfy the requirements.

*****Apply at www.SpaceNukes.com/careers

Pay: From $200,000.00 per year

Work Location: In person

Salary : $200,000

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