Reactor Operations Engineer, Nuclear

Radiant • El Segundo, CA

161d

About The Position

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.

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, salaried 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 are offered as employee contributed benefits.
• Free snacks and drinks onsite.
• Flexible PTO policy.

What This Job Offers

• Job Type: Full-time
• Career Level: Mid Level
• Education Level: Bachelor's degree
• Number of Employees: 101-250 employees