Senior Test Engineer - Nuclear Reactor Systems

Radiant in El Segundo, CA is seeking a Senior Test Engineer to drive test operations for the Kaleidos microreactor development, qualification, and acceptance. You will translate complex hardware and software designs into clear, executable test procedures and oversee test planning, execution, and reviews.

This role is onsite at HQ and involves collaboration with a multidisciplinary team, risk assessment, and hands-on testing in a fast-paced, regulated environment.