Onsite Senior Nuclear Thermal-Hydraulics Engineer El Segundo

Radiant in El Segundo, CA is seeking a Senior Nuclear Thermal-Hydraulics Engineer to lead thermal-hydraulics and coupled physics analyses for the Kaleidos microreactor. You will own the modeling that determines heat, coolant, and reactor core behavior under normal and accident conditions – informing core design, cooling systems, and safety-case development for the first mass-produced nuclear reactor. This role suits engineers with reactor-specific thermal-hydraulics or coupled multiphysics