Probabilistic Safety Analysis Engineer - SMR

About the role

The Probabilistic Safety Analysis (PSA) Engineer II supports Holtec’s advanced reactor development by contributing to risk‑informed safety analysis efforts for the SMR‑300 program.

This role is part of a multidisciplinary engineering team responsible for supporting design, safety analysis, and licensing of next‑generation nuclear technology.

The position focuses on developing and maintaining PSA models and thermal‑hydraulic analyses, while translating technical findings into actionable insights that support safe and effective reactor design.

Primary Responsibilities

• Develop and maintain PRA logic models and supporting thermal‑hydraulic analyses used for risk quantification and licensing support
• Build Level 1 and Level 2 PRA models for internal and external events across full power and shutdown operating conditions
• Support thermal‑hydraulic modeling (RELAP5‑3D, MELCOR) to simulate core and containment response in severe accident scenarios
• Assist in development and quantification of event trees and fault trees to evaluate key risk metrics such as core damage frequency (CDF) and large release frequency (LRF)
• Support ongoing updates and maintenance of 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)
• Interface with design teams to communicate PSA insights and support design decision‑making
• Ensure consistency, accuracy, and quality across PSA analyses and deliverables
• Contribute to technical documentation supporting regulatory and licensing activities

Requirements

• Bachelor’s degree in Nuclear Engineering, Mechanical Engineering, or a related field
• 4–6 years of experience in probabilistic risk assessment and/or thermal‑hydraulic safety analysis within the nuclear industry
• Familiarity with thermal‑hydraulic behavior of light water reactors (LWRs)
• Proficiency with PSA and modeling tools (e.g., CAFTA, SAPHIRE, RiskSpectrum, RELAP5‑3D, MELCOR)
• Working knowledge of ASME/ANS PRA Standards and NRC or IAEA risk guidance
• Ability to interpret analysis results and communicate technical insights clearly
• Strong technical writing, communication, and interpersonal skills
• Ability to collaborate effectively within a multidisciplinary engineering team
• Eligible to work under 10 CFR Part 810

A Generation Ahead by Design™

Investing in people who power the future.

Benefits

• FLEX Program – Hybrid work opportunities available for eligible roles, where business needs and role requirements allow
• 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
• Benefits eligibility and offerings may vary based on role, location, and employment status

Pay and benefits

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:

Annual compensation based on skills and experience ranging from $140,000.00-$170,000.00

Employee support and voluntary benefits, including an Employee Assistance Program and optional coverage such as disability, legal, identity theft, and insurance programs