Radiant
Nuclear Engineer
$106K–$146K
El Segundo, CA · On-site · Full-time · Posted Aug 7, 2026
- Experience
- 1-2+ years of nuclear engineering industry experience; MS equivalent to 2 yrs. Desired: at least 1 year of software development or scripting experience.
- Education
- Bachelor’s degree in nuclear engineering or equivalent degree from an accredited institution.
- Visa sponsorship
- Any job offer is contingent upon the applicant’s capacity to serve in compliance with U.S. export controls.
About the job
Develops nuclear engineering designs, analyses, and studies for Radiant’s Kaleidos transportable microreactor.
What you'll do
- Own nuclear design and analysis, including shielding, neutronics, accident dose consequences, and transient analysis.
- Collect requirements and provide clear technical feedback to engineers in other functional areas.
- Lead nuclear engineering initiatives and studies, including verification and validation of models and tools.
What they ask for
- Bachelor’s degree in nuclear engineering or equivalent degree from an accredited institution.
- 1-2+ years of nuclear engineering industry experience (MS equivalent to 2 yrs).
- Experience with radiation transport methods, including codes such as MCNP/OpenMC/Serpent.
- Proficiency in at least one programming language: Python, C++, C#, FORTRAN, or another scientific computing language.
Nice to have
- Experience with variance reduction techniques and software such as Attila4MC and/or ADVANTG.
- Familiarity with CAD software such as NX, SolidWorks, and/or SpaceClaim.
Pay
$106,500 – $146,475 USD base salary
Tools
MCNP, OpenMC, Serpent, Python, C++, C#, FORTRAN, Attila4MC
Model-written summary · the original posting is authoritative