PSA Engineer III

The Probabilistic Safety Analysis (PSA) Engineer III supports Holtec’s advanced reactor development by leading probabilistic safety analysis (PSA) efforts for the SMR‑300 program. This role is part of a multidisciplinary engineering team responsible for risk‑informed design, safety analysis, and licensing of next‑generation nuclear technology. The position requires deep technical expertise in PSA and thermal‑hydraulic modeling, along with the ability to translate complex risk insights into actionable design improvements within a fast‑paced, highly regulated environment. Location: Camden, NJ Waterfront Campus with other locations available! This position may be based at one of several Holtec locations across the United States. Relocation assistance available! Primary Responsibilities: Lead development of PSA models and supporting thermal‑hydraulic analyses for risk‑informed design and licensing Develop Level 1 and Level 2 PRA models for internal and external events across full power and shutdown conditions Perform thermal‑hydraulic modeling (RELAP5‑3D, MELCOR) to simulate core and containment response in severe accident scenarios Develop and quantify event trees and fault trees to evaluate key risk metrics such as core damage frequency (CDF) and large release frequency (LRF) Maintain and update PSA models as SMR‑300 design evolves Apply PSA results to support risk‑informed programs (e.g., RTNSS, D‑RAP, 10 CFR 50.69 categorization) Partner with design engineers to integrate PSA insights into system and plant design decisions Mentor junior engineers on PSA methodologies, tools, and best practices Ensure technical accuracy, quality, and consistency across all PSA deliverables Support regulatory interactions and documentation related to safety analysis and licensing Requirements: Bachelor’s degree in Nuclear Engineering, Mechanical Engineering, or a related field 6–10 years of experience in PSA and/or thermal‑hydraulic safety analysis within the nuclear industry Strong understanding of light water reactor (LWR) thermal‑hydraulic behavior Expertise with PSA and modeling tools (e.g., CAFTA, SAPHIRE, RiskSpectrum, RELAP5‑3D, MELCOR) Experience with PSA specialty areas such as external hazards (fire, flood, seismic) or low power/shutdown analysis preferred Knowledge of PSA regulatory frameworks and ASME/ANS PRA standards Strong analytical, technical writing, and communication skills Ability to work cross‑functionally in a complex engineering environment Eligible to work under 10 CFR Part 810 A Generation Ahead by Design™ Investing in people who power the future. We believe great work deserves great rewards. Our benefits go beyond the basics, reflecting our commitment to supporting your whole self…your health, your future, and your career growth. This includes: Compensation: Annual compensation based on skills and experience ranging from $150,000 to $175,000 Benefits: Industry‑leading medical, dental, and vision coverage with a generous employer premium contribution and Day 1 eligibility! FLEX Program – Hybrid work opportunities available for eligible roles, where business needs and role requirements allow 401(k) retirement plan with up to a 5% company match and immediate vesting to support long‑term financial security Paid time off and 11 paid holidays to support rest, balance, and recharge Wellness program offering rewards for participation in company‑supported health initiatives Commuter benefits supporting mass transit and commuter parking options Company‑paid life and AD&D insurance for added peace of mind Education assistance to support continued education and professional growth Employee support and voluntary benefits, including an Employee Assistance Program and optional coverage such as disability, legal, identity theft, and insurance programs Benefits eligibility and offerings may vary based on role, location, and employment status If you’re driven to solve meaningful challenges and make a lasting impact, we invite you to build your career at Holtec—a generation ahead by design™.