About the role
About Radiant Radiant is an El Segundo, CA-based startup building the world’s first mass-produced, portable nuclear microreactors. The company’s first reactor, Kaleidos, is a 1-megawatt, fail-safe microreactor that can be transported anywhere power is needed and run for up to 5 years without refueling. Portable nuclear power with rapid-deploy capability can replace similar-sized diesel generators and provide critical asset support for hospitals, data centers, remote sites, and military bases. Radiant’s unique, practical approach to nuclear development leverages modern software engineering to rapidly deliver safe, factory-built microreactors that use existing, well-qualified materials. Founded in 2020, Radiant is on track to test its first reactor at the Idaho National Laboratory this summer, with initial customer deliveries beginning in 2028.
About
the Role Radiant is scaling fast - expanding factory operations, standing up multi-entity structures, and taking on both government and commercial deployments. This role will manage our liability exposure in a centralized manner - owning programs across all teams and building out our risk infrastructure. As Risk & Compliance Lead , you will build and own Radiant's risk management function from the ground up - mapping exposure across the entire business, optimizing our insurance and other risk-coverage programs (including layered nuclear-related coverage
requirements), and identifying / prioritizing / closing gaps before they become findings. You will mature our programs into a proactive, structured risk governance, and you'll be the connective tissue between insurance brokers, legal, operations, IT, security, finance, and regulatory teams. This is a high-visibility, largely individual-contributor-to-start role reporting directly to the VP of Finance with the mandate to scale into a broader risk function as our footprint grows.
What You'll Own Risk Mapping & Liability Structuring: Build and maintain comprehensive liability mapping across Radiant's entities, business units, and deployment channels (government and commercial). Design risk isolation strategies (both contractual and insurance-based) appropriate to Radiant's multi-entity and GOCO/COCO structures. Advise leadership on liability implications of new facilities, long-term contracts, entity formations, and market expansion. Insurance Program Design & Optimization: Own end-to-end design, procurement, placement, and renewal of Radiant's insurance program, including Nuclear, Property, General Liability, Auto, Workers'
