Radiant, an El Segundo startup, seeks a Senior Reactor Systems Engineer to own the technical integration of a first-of-a-kind reactor. You will coordinate reactor physics, therm hydraulics, materials, controls, and licensing to deliver a safe, on-time product. You will work hands-on, lead without formal authority, and write essential specifications and memos to keep the team aligned while maintaining a fast-moving, startup-friendly engineering culture at Radiant.
