Supplier Development Engineer

Radiant•El Segundo, CA

12d•Onsite

About The Position

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 failsafe microreactor that can be transported anywhere power is needed and run for up to five years without the need to refuel. 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 utilizes modern software engineering to rapidly achieve safe, factory-built microreactors that leverage existing, well-qualified materials. Founded in 2020, Radiant is on track to test its first reactor next year at the Idaho National Laboratory, with initial customer deliveries beginning in 2028. About Radiant is seeking a Supplier Development Engineer responsible for the onboarding, qualification, auditing, and ongoing development of suppliers to ensure compliance with applicable nuclear and industrial quality codes and standards. This role will help build a world-class, compliant, and reliable supply base capable of delivering high-quality, safety-critical components for our micro reactor systems. The ideal candidate is detail-oriented, collaborative, and eager to grow subject matter expertise within highly regulated industries.

Requirements

Bachelor’s degree in Engineering, Supply Chain, Quality, or a related field.
2–7 years of relevant experience in supplier quality, supplier development, or quality engineering within highly regulated industries (nuclear, aerospace, medical device, or industrial).
Working knowledge of quality systems such as ISO-9001, AS-9100, or equivalent.
Establish proactive communication channels and trusted relationships with key suppliers to ensure consistent performance, foster collaboration, and drive continuous improvement.
Ability and willingness to travel to supplier locations domestically and internationally (up to 30%).
Must be willing to work extended hours and weekends as necessary to accomplish our mission.
Must work 100% onsite at El Segundo HQ.

Nice To Haves

Experience in the nuclear energy industry or working with nuclear codes, standards, and regulations.
Familiarity with NQA-1, 10 CFR 50 Appendix B, 10 CFR 21, ASME BPVC Section III & VIII.
Experience conducting supplier audits, product inspections, and quality investigations.
Certified NQA-1 Lead Auditor or willingness to obtain certification within 12 months.
Exposure to ISO-17025 accredited laboratories or certification bodies.

Responsibilities

Lead the supplier onboarding and qualification process, including pre-assessments, audits, and capability reviews.
Conduct supplier audits against relevant standards (references skills & qualifications below)
Manage supplier corrective actions, non-conformance investigations, root cause analysis, and effective resolution of supplier quality issues.
Oversee supplier inspections, product witness points, and documentation reviews to ensure code and specification compliance.
Partner cross-functionally with design, materials, and manufacturing engineering teams to understand technical design intent — including components, assemblies, and metrology — and support resolution of supplier quality and performance issues.
Track supplier performance metrics and drive continuous improvement initiatives.
Work toward achieving certified NQA-1 auditor status (if not already certified) and pursue qualified inspector credentials as appropriate.
Support supplier capability development plans to meet evolving quality and regulatory requirements.
Maintain accurate records and reports to support audits, regulatory reviews, and internal reporting.

Benefits

Stock: Substantial incentive stock plan for all full-time employees.
Medical: 100% premium coverage for base Silver level plan for employee + 50% premium coverage for dependents. Platinum plans available.
One Medical: Sponsored memberships for eligible employees and their dependents.
Vision: 100% premium coverage for top tier plan + 50% for dependents.
Dental: 100% premium coverage for top tier plan (including orthodontia) + 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.