Director of Regulatory Affairs

Overview 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 wherever power is needed and operate for up to five years without refueling. Radiant’s unique, practical approach to nuclear development leverages modern software engineering to rapidly deliver safe, factory-built microreactors that use 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. The Director of Regulatory Affairs will oversee licensing engagement, strategy, process, and execution with the U.S. Nuclear Regulatory Commission (NRC). You will play a pivotal role in driving Kaleidos’ development timeline, successful demonstration, and future commercialization. The position reports to our Chief Nuclear Officer and is based in Washington, DC. Compensation Base salary: $186,000 – $258,300, with equity benefit. Responsibilities and Duties Provide licensing and regulatory leadership and strategic guidance to a high‑performing team. Craft a modern regulatory strategy based in sound engineering principles with input from executives, board members, and industry experts that brings the safest product to market the fastest. Own end‑to‑end licensing execution efforts, establishing strict principle‑based standards while promoting streamlined, modern approaches to regulatory interactions. Facilitate collaborative and cohesive partnerships with internal stakeholders and external regulatory and governing bodies to drive desirable results, including attending in‑person NRC visits, online meetings, and industry events. Ensure the completeness, timeliness, and quality of licensing and regulatory submissions. Integrate the regulatory process with technical teams to meet quality assurance and regulatory standards. Required Skills and Qualifications Bachelor’s degree from an accredited institution in an engineering discipline. Eight or more years of industry experience working on nuclear regulatory and licensing efforts. Two or more years of leadership experience. Ability to travel and attend in‑person meetings. Desired Skills and Qualifications Direct experience with the NRC. Experience with 10 CFR 50 and 10 CFR 70. Ability to simplify complex technical information for non‑technical audiences. Intrinsic motivation to push through decades of regulatory precedent with a creative approach. Strategic aptitude to synthesize complicated threads into a clear throughline. Outstanding written and verbal communication skills, and ability to build relationships with internal and external stakeholders. Demonstrated ability to create coalitions and partnerships with other leaders in the nuclear industry. Additional Requirements Must be willing to work extended hours and weekends as necessary to accomplish our mission. Benefits and Perks Stock: Substantial incentive stock plan for all full‑time employees. Medical: 100% coverage up to base silver level for employee + 50% for dependents; optional platinum plans. One Medical: Sponsored memberships for employees and dependents. Vision: 100% top‑tier plan coverage + 50% for dependents. Dental: 100% top‑tier plan coverage; orthodontia extra; 50% for dependents. Voluntary life, accident, hospital, critical illness, commuter, and FSA/HSA employee‑contributed benefits. Eight weeks of paid parental leave for all parents; additional paid pregnancy leave for CA employees. Daily catered lunch; free snacks and drinks. Flexible PTO policy; remote workday allocation. Company and team‑bonding events, happy hours, and in‑person camaraderie. Beautiful El Segundo headquarters close to the Pacific Ocean. Legal and Compliance We are an equal‑opportunity employer and all qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity or expression, pregnancy, age, national origin, disability status, genetic information, protected veteran status, or any other characteristic protected by law. Unfortunately, we are unable to provide visa sponsorship at this time. This position involves access to technology that is subject to U.S. export controls. Any job offer made will be contingent upon the applicant’s capacity to serve in compliance with U.S. export controls. #J-18808-Ljbffr