Regulatory Engineer

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.

Radiant is seeking a driven Regulatory Systems Engineer who loves to think outside the box and challenge convention; in this role you will support the license application approval process with the Nuclear Regulatory Commission. This role is critical to bringing the world’s first portable nuclear microreactor to commercialization in a timely manner. You will be a go to subject matter expert for the regulatory process and collaborate across technical teams to inform design, build and test campaigns.

You will lead interactions between regulators and the engineering team to obtain clarity and answers on regulation. You will integrate analysis and test results from the design teams with supporting justifications and own the deliverables that make up a full license application. This is an exciting opportunity for systems engineers who enjoy both technical work and operational execution. You will have direct ownership of modernize regulatory strategy to bring the safest microreactor to market in the shortest timeline.

Responsibilities & Duties:

• Own end to end licensing execution efforts required to fulfill an application deliverable, ranging from detailed safety analysis to a physical protection plan.

• Facilitate collaborative and cohesive partnerships with internal stakeholders and external regulatory bodies (NRC) to drive desirable results using streamlined, modern regulatory approaches.

• Oversee execution by technical teams including design reviews and regulatory and quality documentation; organize their inputs into data products and reports; raise regulatory concerns and see through timely and successful resolution.

• Proactively review approaches and decisions as they relate to regulatory efforts to ensure adherence to Radiant’s novel and efficient licensing paths.

• Ensure completeness, timeliness, and quality of licensing and regulatory submissions.

• Write software scripts to automate and produce data analysis and documentation.

Required Qualification &

Skills:

• Bachelor’s degree in one of the following disciplines: nuclear engineering, mechanical engineering, electrical engineering, computer science, or similar technical field from an accredited institution.

• 2+ years of experience certifying, regulating, qualifying or auditing hardware that was manufactured, deployed, and iteratively improved.

• Excellent verbal and written communication and negotiation abilities; ability to navigate regulatory conversations effectively and write technical documentation.

• Applied understanding of requirement derivation, negotiation and verification or experience with the product design process especially as it relates to defining systems, interfaces and specifications.

Desired

Qualifications & Skills:

• 5+ years of experience working in a manufacturing environment with strict regulatory oversight.

• Experience working on a nuclear project with DOE or NRC regulation.

• Experience…