Supplier Development Engineer

Radiant System is an El Serrano, CA 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 can run for up to five years without refueling. Portable nuclear power with rapid‑deploy capability can replace diesel generators and support hospitals, data centers, remote sites, and military bases.

Radiant’s approach uses 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 at the Idaho National Laboratory next year, with initial customer deliveries beginning in 2028.

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.

• Lead the supplier onboarding and qualification process, including pre‑assessments, audits, and capability reviews.
• Conduct supplier audits against relevant standards.
• 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—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.

• Lead supplier onboarding, capability assessments, and compliance audits against NQA‑1, 10 CFR 50 Appendix B, 10 CFR 21, ASME, ISO, and other standards.
• Maintain supplier performance metrics, manage supplier scorecards, and drive continuous improvement initiatives based on audit results and performance trends.
• Investigate supplier non‑conformances, lead root cause analysis, manage corrective actions (SCARs), and verify resolution effectiveness.
• Develop and execute inspection and witness point plans, perform code‑compliant product inspections, and review documentation for critical nuclear components.
• Obtain Certified NQA‑1 Lead Auditor status within 12 months, work toward Qualified Inspector credentials, and stay current on applicable codes, standards, and industry best practices.

• Required:
  • 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 domestically and internationally up to 30 %.
• Preferred:
  • Experience in the nuclear energy industry or with nuclear codes, standards, 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.
  • Ex…