Senior Test Engineer – Nuclear Microreactor (Onsite)

Radiant, based in El Segundo, CA, seeks a Senior Test Engineer to lead mission-critical test operations for the Kaleidos reactor development. You will assume the roles of Test Conductor and Test Director, partnering with design engineers to craft robust test methods and ensure safe, reliable hardware testing in a fast-paced environment.

You will own test planning, risk mitigation, data review, and hardware performance analysis, while ensuring DOE/NRC standards compliance and contributing to test