Nuclear Engineer, Core Physics

Radiant Industries•El Segundo, CA

6d•Onsite

About The Position

Nuclear Radiant is seeking a nuclear engineer responsible for designing and implementing nuclear-specific testing operations at our 2026 demonstration. You will be responsible for the design of a large portion of the test campaign, which includes providing analysis to verify that the proposed testing is both safe and meets the test’s objectives. This position will work closely with nuclear engineers to establish test success criteria and systems / operations engineers to implement written procedures.

Requirements

Bachelor’s degree in nuclear engineering or equivalent degree from an accredited institution.
2+ years of experience with reactor operations.
Experience with radiation transport methods, including with codes such as MCNP/OpenMC/Serpent.
Knowledge of thermal hydraulic fundamentals.

Nice To Haves

4+ years of experience with reactor operations.
Direct experience as a reactor operator of an existing nuclear reactor.
Hands-on experience in developing technical procedures, human factors engineering, or operational interface design.

Responsibilities

Collect testing requirements, objectives, and success criteria from nuclear engineers.
Develop procedures that satisfy test requirements within the operational bounds of Kaleidos.
Perform various reactor physics calculations (neutronic and transient analyses) to verify proposed testing sequence addresses all requirements.
Document testing procedures and support operator training and control room GUI development.

Benefits

Substantial incentive stock plan for all full-time employees.
100% up to base silver level plan for employee + 50% dependents, offers up to Platinum plans.
Sponsored memberships for employees and their dependents.
100% top tier plan coverage + 50% for dependents.
100% top tier plan coverage, orthodontia extra, 50% for dependents.
Voluntary life, accident, hospital, critical illness, commuter and FSA/HSA are offered as employee contributed benefits.
8-weeks of paid parental leave for all parents.
Additional paid pregnancy leave for CA employees.
Daily catered lunch.
Free snacks and drinks.
Flexible PTO policy.
Remote workday allocation.
Company and team-bonding events, happy hours and in-person camaraderie.
Beautiful El Segundo headquarters close to the Pacific Ocean.