About Radiant

Radiant is an El Segundo CA-based startup building the worlds first mass-produced portable nuclear microreactors. The companys 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. Radiants 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 seeking a Certification Engineer to develop maintain and govern engineering design standards requirements and verification methodologies for the mass production of nuclear reactors. This role bridges systems engineering design analysis manufacturing and operations. As a Certification Engineer you will be responsible for ensuring that hardware and concepts of operation meet requirements and are designed in accordance with Radiant short youll be the glue between our analysis test certification and design teams helping to connect the technical dots and solve problems across our reactor designs.

Responsibilities:

• Develop own and continuously improve design criteria standards and requirements for reactor core structures fluid systems electronics and shielding.

• Provide critical peer review and approval of hardware designs during design reviews; confirm acceptance and qualification test campaigns.

• Engage with Engineering to drive optimized designs while shepherding them through the design review process verification testing and part release.

• Guide engineers through the Radiant design process and ensure design criteria/requirements are being followed for reactor design manufacturing and test activities.

• Collaborate with responsible engineers throughout the entire design process ensuring design criteria are properly considered in the development of hardware.

Required Skills and Qualifications:

• Undergraduate degree in engineering.

• 2 years of full-time experience with engineering problem solving in design analysis or test of systems.

• Experience with complex hardware and processes related to manufacturing integration testing or operations.

• 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 Skills and Qualifications:

• Advanced degree in an engineering discipline.

• Experience with requirements management tools (e.g. DOORS Jama Flow).

• Strong understanding of the system design process including interface control and tradeoffs.

• Familiarity with structural thermal and fluid systems.

• 5 years professional experience in an engineering role (design analysis test or manufacturing.

Benefits and Perks

• Stock: Substantial incentive stock plan for all full-time employees.

• Medical: 100% up to base silver level plan for employee 50% dependents offers up to Platinum plans.

• One Medical: Sponsored memberships for employees and their 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 are offered as employee contributed benefits.

• 8-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.

Total Compensation and Benefits
Radiant compensates people for impact and invests in those who continue to raise the bar. Radiants new hire compensation package includes base salary substantial equity grants and comprehensive health benefits. Total compensation and level are determined through a rigorous evaluation of interview performance experience education and qualifications and are designed to support continued growth as scope responsibility and impact expand at Radiant.

The best of todays advanced reactor builders dont wait for job postings. They join the winning team. If thats you contact us directly for immediate opportunities: .

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 applicants capacity to serve in compliance with U.S. export controls.

Required Experience:

IC