Director of Nuclear Engineering — Lead Portable Reactor Fleet

Radiant in El Segundo, CA, seeks a Director of Nuclear Engineering to organize design and analysis across its microreactor fleet. Lead core physics, shielding, dose, and instrumentation while ensuring safety and regulatory compliance in a fast-paced startup environment.

You will manage a team of senior engineers, drive roadmaps, and communicate complex concepts to stakeholders and partners. Relocation to El Segundo is required for this on-site role.