PSA Engineer I

Holtec; Camden (NJ); On-site; USD 115,000 - 140,000; Full time

Benefits offered by this job

Medical, dental, vision coverage

Hybrid work options

401(k) with company match

PTO and holidays

Wellness program

Commuter benefits

Life and AD&D insurance

Education assistance

Employee Assistance Program

Job summary

Holtec International in Camden, NJ seeks a Probabilistic Safety Analysis (PSA) Engineer I to support probabilistic safety assessment methodologies for the SMR-300 program. You will contribute to risk-informed design, safety analyses, and regulatory compliance by developing PSA models and TH evaluations.

The role offers collaboration across reactor design, safety analysis, licensing, and systems engineering teams, with hybrid work opportunities for eligible roles and a commitment to safety and

Qualifications

• B.S degree in nuclear or mechanical engineering or closely related field.
• Familiarity with LWR thermal-hydraulic behavior.
• Familiarity with probabilistic risk assessment methods for LWRs.
• Exposure to PRA/thermal-hydraulic analysis tools.
• Excellent writing and communication skills; able to work in team.

Responsibilities

• Support development of PRA modules and associated TH analyses under supervision.
• Develop Level 1 and Level 2 PRA models for internal/external events.
• Model thermal-hydraulic responses for severe accidents inform PRA.
• Develop event and fault trees to estimate CDF and LRF.
• Maintain PSA models as SMR-300 design evolves.
• Communicate PSA insights to design teams and ensure deliverable quality.

Skills

Excellent technical writing

Interpersonal skills

Communication skills

Education

B.S degree in nuclear engineering or mechanical engineering

Tools

CAFTA

SAPHIRE

RiskSpectrum

RELAP5-3D

MELCOR

Job description

The Probabilistic Safety Analysis (PSA) Engineer I will support the development and application of Probabilistic Safety Assessment (PSA) methodologies for Holtec International's SMR-300 advanced nuclear reactor program. Working within a multidisciplinary engineering team, this role will contribute to risk-informed design, safety analysis, licensing activities, and regulatory compliance by developing and maintaining probabilistic risk models and supporting thermal-hydraulic safety evaluations. The position offers the opportunity to work on next-generation nuclear technology while collaborating with reactor design, safety analysis, licensing, and systems engineering teams to ensure safe, reliable, and efficient plant performance.

Primary Responsibilities:

• Support development of PRA modules and/or associated thermal-hydraulic analyses under the supervision of senior engineers.
• Develop Level 1 and Level 2 PRA models for internal and external events during full power and low power / shutdown operating modes.
• Thermal-hydraulic analysis specialization: support RELAP5-3D and MELCOR modeling to simulate core and containment response for severe accident scenarios that inform PRA quantifications.
• Logic modeling specialization: support development of event trees and fault trees to estimate key design risk metrics including core damage frequency (CDF) and large release frequency (LRF).
• Support PSA model maintenance and updates that occur periodically as the SMR-300 design matures
• Use PSA results to support implementation of risk-informed programs; for example, Regulatory Treatment of Non-Safety Systems (RTNSS), Design Reliability Assurance Program (D-RAP), 10 CFR 50.69 risk-informed categorization and treatment of SSCs.
• Interface with the design team to communicate and implement PSA insights
• Ensure consistency and quality of all PSA deliverables

Requirements:

• B.S degree in nuclear engineering, mechanical engineering, or closely related field from an accredited college or university
• Familiarity with thermal-hydraulic behavior of light water reactors (LWRs)
• Familiarity with probabilistic risk assessment and/or thermal-hydraulic analysis methods for light-water reactors
• Exposure to industry codes such as CAFTA, SAPHIRE, RiskSpectrum, RELAP5-3D, or MELCOR
• 2-4 years of experience in probabilistic risk assessment and/or thermal-hydraulic safety analysis for nuclear facilities
• Excellent technical writing, interpersonal, and communication skills
• 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 $115,000 to $140,000
• Industry‑leading medical, dental, and vision coverage with a generous employer premium contribution and Day1 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™.