Senior Nuclear Engineer

Radiant is seeking a driven Senior Nuclear Engineer to join our team! You will own modeling methods and reactor physics calculations of neutronics parameters such as reactivity, kinetics parameters, and energy deposition distributions used within our cutting-edge custom-made Digital Twin simulation software. You’ll be responsible for assessing conservatism and verifying assumptions within the modeling methods and documenting all results. Because these methods are pivotal in the safety analysis, you will play a key role in the commercialization of the first mass-produced nuclear reactor.

• Own modeling methods of core neutronics and reactor physics calculations supporting Radiant’s transient safety analyses.
• Perform calculations of energy deposition distributions, reactivity coefficients, kinetics parameters, and control blade worths to input into Digital Twin models.
• Verify assumptions and assess conservatism of neutronics models.
• Document methods for both technical and non-technical audiences.
• Assist in Verification & Validation (V&V) efforts for the Digital Twin.
• Review and support other nuclear analyses across the company in reactor physics, shielding, and radiation detection.

• Bachelor’s degree in nuclear engineering or a similar field from an accredited institution.
• 4+ years of experience with Monte Carlo nuclear engineering software such as OpenMC, MCNP, Serpent, SCALE, etc.
• Experience documenting analysis methods and assumptions.
• Strong programming skills in any language, preferably Python.

• Knowledge and experience in reactor kinetics.
• Basic knowledge of thermal hydraulic principles.
• Experience communicating and distilling information with cross-functional teams.
• Driven, self-motivated, and takes ownership of work end to end.

• Must be willing to work extended hours and weekends as necessary to accomplish our mission.
• Must work 100% onsite at El Segundo HQ.

Compensation Range: $133.5K - $207.9K