Job Description

Job Title: Safety Analysis Engineer, Nuclear

Location: Bellevue, WA

Type: Contract, 12 months

Contractor Work Model: Remote

Overview

This contract Safety Analysis Engineer role performs deterministic nuclear safety analysis and transient/accident modeling (RELAP5-3D or similar) to support U.S. NRC licensing submittals. The engineer develops and documents system models, analyzes AOOs/DBEs/DBAs and licensing-basis events, supports FSAR-style reporting, and collaborates across engineering teams on methods development, V&V/benchmarking, and uncertainty/sensitivity studies.

Responsibilities

• Perform deterministic safety analysis using RELAP5-3D code for the Natrium sodium fast reactor

• Analyze design basis accidents (DBAs) and licensing basis events (LBEs) to support reactor licensing with US NRC

• Model and integrate various plant systems within safety analysis computer codes

• Develop safety analysis reports, including the Final Safety Analysis Report (FSAR)

• Collaborate with cross-functional teams on core and reactor SSC requirements and licensing documentation

• Contribute to safety method development, code assessment, scaling analysis, and validation activities

• Maintain documentation of models and analysis results

• Conduct engineering reviews of analysis and design deliverables

• Assess plant transient benchmark tests and perform relevant benchmark calculations

• Support implementation of software capabilities for transient and accident analysis

Requirements

• Extensive experience in nuclear safety analysis and reactor system modeling

• Proficiency with safety analysis software such as RELAP5, TRACE, TRAC, SAS4A/SASSYS-1, or similar

• Experience in transient and accident analysis for NRC submittals (e.g., Chapter 15 FSAR)

• Strong knowledge of nuclear systems thermal-hydraulics, reactor physics, and transient phenomena

• Familiarity with nuclear reactor instrumentation, control systems, and safety regulation compliance

• Degree: B.S. with 10+ years or M.S./Ph.D. with 5-7+ years of nuclear engineering or relevant field

• Demonstrated analytical, modeling, and reporting skills

• Experience working in multidisciplinary teams and under quality assurance programs (NQA-1)

• Strong software engineering skills in Python, Fortran, C++, or similar are a plus

System One, and its subsidiaries including Joulé and Mountain Ltd., are leaders in delivering outsourced services and workforce solutions across North America. We help clients get work done more efficiently and economically, without compromising quality. System One not only serves as a valued partner for our clients, but we offer eligible employees health and welfare benefits coverage options including medical, dental, vision, spending accounts, life insurance, voluntary plans, as well as participation in a 401(k) plan.

System One is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex (including pregnancy, childbirth, or related medical conditions), sexual orientation, gender identity, age, national origin, disability, family care or medical leave status, genetic information, veteran status, marital status, or any other characteristic protected by applicable federal, state, or local law.

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Ref: #161-Managed Staffing Charlotte

System One, and its subsidiaries including Joulé, ALTA IT Services, CM Access, TPGS, and MOUNTAIN, LTD., are leaders in delivering workforce solutions and integrated services across North America. We help clients get work done more efficiently and economically, without compromising quality. System One not only serves as a valued partner for our clients, but we offer eligible full-time employees health and welfare benefits coverage options including medical, dental, vision, spending accounts, life insurance, voluntary plans, as well as participation in a 401(k) plan.

System One is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex (including pregnancy, childbirth, or related medical conditions), sexual orientation, gender identity, age, national origin, disability, family care or medical leave status, genetic information, veteran status, marital status, or any other characteristic protected by applicable federal, state, or local law.

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