Nuclear Safety & PRA Lead; SMR​/MMR Programs

Ba Rup On  LLC is seeking a highly experienced Nuclear Safety & PRA Lead to own all probabilistic risk assessment, deterministic safety analysis, and risk-informed regulatory compliance activities for its Small Modular Reactor (SMR) and Micro Modular Reactor (MMR) programs in the United States.

This is a senior technical leadership role at the core of Ba Rup On ’s nuclear safety organization. The Nuclear Safety & PRA Lead will be responsible for developing and maintaining the company’s full PRA program — from Level 1 and Level 2 internal events analyses through external hazards, fire PRA, and risk-informed decision-making support. The role also encompasses deterministic safety analysis, severe accident evaluation, and direct support for NRC licensing submissions.

Close collaboration with engineering, licensing, and operations teams is essential to ensure safety principles are embedded into every phase of reactor design and operational planning.

The ideal candidate brings deep, hands‑on PRA and nuclear safety experience for advanced or light‑water reactor systems, a thorough command of NRC risk‑informed regulatory frameworks, and the technical leadership to build and guide a growing safety analysis team in a mission‑driven, fast‑moving environment.

• Lead the development, maintenance, and application of full‑scope PRA models for Ba Rup On ’s SMR/MMR designs, including Level 1 (core damage frequency) and Level 2 (large early release frequency) analyses for internal events, external hazards, and fire scenarios.
• Apply risk‑informed decision‑making frameworks to support design choices, technical specification development, allowed outage time evaluations, and regulatory submittals.
• Perform uncertainty quantification, sensitivity analyses, and importance measures to characterize and communicate risk insights to engineering and executive leadership.
• Develop, validate, and maintain PRA models and supporting tools using industry‑standard software such as SAPHIRE, Risk Spectrum, or equivalent platforms.
• Ensure PRA products meet NRC quality and peer review standards, including compliance with ASME/ANS PRA Standard requirements.

• Conduct nuclear safety analyses using both deterministic and risk‑informed approaches to evaluate reactor behavior under normal, transient, and postulated accident conditions.
• Lead or support severe accident progression analyses, source term evaluations, and consequence assessments in support of the safety case and licensing documentation.
• Develop and maintain safety models, simulations, and analytical tools for reactor systems, ensuring all methods are validated and technically defensible for NRC review.
• Identify safety‑significant design vulnerabilities and recommend design modifications, procedural controls, or compensatory measures to reduce risk.

• Prepare, review, and defend safety analysis reports (SAR/FSAR), PRA submittals, and risk‑informed licensing documentation for NRC review.
• Ensure compliance with all applicable NRC regulations, codes, and standards, including 10 CFR Part 50, Part 52, Part 53, ASME, and IEEE requirements governing nuclear safety and PRA.
• Respond to NRC requests for additional information (RAIs) on safety analysis, PRA methodology, and risk‑informed regulatory matters.
• Monitor NRC regulatory developments, proposed rule making, and risk‑informed initiative guidance; assess impacts on Ba Rup On ’s safety program and licensing strategy.

• Collaborate closely with the Head of Engineering, Thermal‑Hydraulics Lead, Lead Reactor Physicist, and Director of Licensing to integrate safety requirements and risk insights into all phases of reactor design and operations planning.
• Support the CNO in establishing, maintaining, and continuously improving Ba Rup On ’s nuclear safety culture and corrective action program.
• Represent Ba Rup On  in NRC regulatory interactions, industry technical forums, and national laboratory collaborations related to advanced reactor safety and risk…