Reactor Operations Engineer, Nuclear

Reactor Operations Engineer, Nuclear

Radiant is a 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.

Responsibilities and Duties:

• 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.

Required Skills and Qualifications:

• 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.

Desired Skills and Qualifications:

• 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.

Additional Requirements

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