Role OverviewRadiant is seeking a Senior Safety Analysis Engineer to lead reactor safety analyses supporting the design, testing, and deployment of Kaleidos. The ideal candidate brings strong reactor safety fundamentals, hands-on modeling experience, and sound engineering judgment.
What You Will Do
Lead deterministic reactor safety analyses, develop and apply system-level thermal-hydraulic and transient models, perform source term and radiological consequence analyses, and evaluate uncertainties in reactor physics.
Why It Might Be a Fit
The ideal candidate should be comfortable identifying dominant physical phenomena, evaluating analytical uncertainties, and translating complex results into practical design and safety decisions.
Requirements
- Bachelor's degree in nuclear engineering, mechanical engineering, or a related technical discipline
- 5+ years of relevant experience in reactor safety analysis, thermal-hydraulics, nuclear systems modeling, or related engineering disciplines
- Experience developing and applying reactor systems or safety analysis codes such as RELAP5-3D, TRACE, SAM, MELCOR, or equivalent tools
- Strong understanding of reactor thermal-hydraulics, transient behavior, heat transfer, and deterministic safety analysis
- Knowledge of reactor physics, fuel performance, fission product behavior, and radiological safety principles
- Experience developing or evaluating source terms, radiological consequences, or other safety-related performance calculations
- Experience evaluating modeling assumptions, uncertainty, sensitivity, and conservatism in engineering analyses
- Demonstrated ability to independently own complex analytical projects and translate results into design requirements, safety conclusions, and technical documentation
- Strong written and verbal communication skills, including experience preparing rigorous calculation packages, technical reports, or safety-related engineering documentation
Benefits
- 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
- 8-weeks of paid parental leave for all parents
- 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
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