Radiant builds Kaleidos, a portable, factory-built nuclear microreactor that delivers a megawatt of clean power anywhere it is needed. Backed by a16z, Felicis and USV.
About the role
Excellent organizational and administrative skills: you keep complicated work moving, track open items, and follow through. Startup or small-team experience where you built the process rather than just followed it. Found on 1752vc Careers, the job board for startup and VC roles.
What they're looking for
- BS in nuclear, mechanical, aerospace, systems, or a related engineering discipline
- 6+ years of full-time professional engineering experience, including meaningful time in systems engineering, integration, or technical leadership on complex hardware
- Demonstrated ability to work effectively across multiple engineering disciplines
- Track record of leading cross-functional technical efforts without direct authority
- Strong written and verbal communication, including producing clear technical documents and presenting to varied audiences
- Excellent organizational and administrative skills: you keep complicated work moving, track open items, and follow through
More about this role
Radiant is an El Segundo, CA-based startup building the world’s first mass-produced, portable nuclear microreactors. Rising energy demand is straining the U.S. grid and driving up utility costs, emissions, and interconnection backlogs. Radiant decentralizes energy, producing power close to where it’s used. Its first reactor, Kaleidos, is a factory-built, 1-megawatt, fail-safe microreactor that can be transported by land, sea, or air and runs up to 5 years without refueling. Deployed locally without a decade-long build or permitting fight, Kaleidos provides independent power for critical infrastructure like military bases, data centers, hospitals, and remote sites. Founded in 2020, Radiant is under contract to deliver power to the U.S. Army, Air Force, Navy, and has pre-order agreements with Equinix, with deployments beginning in 2028.
About the Role
We are seeking a Senior Reactor Systems Engineer to own the technical integration of a first-of-a-kind reactor. With no operating predecessor to copy and no mature supply chain, you will be the person who holds the whole machine together, making sure hundreds of design decisions across nuclear physics, thermal-hydraulics, controls,...
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