Sodium Fire Analysis Engineer
Bellevue, WA
Experience: 0
Category: Energy
Contractor Work Model: Remote
Brand: System One
Compensation Range: 56.00 - 95.00 Per Hour
Job ID: 378605
Date Posted: 08/17/2026
Shortcut: http://jobs.systemone.com/haOneh
Job Title: Sodium Fire Analysis Engineer
Location: Remote
Type: Long term Contract
Compensation: $56-$95
Overview
Responsible for performing sodium fire modeling calculations to support the Natrium® design and licensing. They will work directly with other nuclear safety analysis and licensing staff to ensure technical and regulatory requirements for nuclear safety and worker protection are met. Other engineering activities include, but are not limited to, contributing to the development of computational methodologies and models, contributing to software commercial grade dedication, participating in hazard analysis, participating to Phenomena Identification and Ranking Table (PIRT) exercises, participating to Structures, Systems and Components (SSC) classification, developing analytical methods, performing analysis of sodium fire as well as verification and validation activities.
Responsibilities
- Perform sodium fire modeling calculations to support the Natrium® design and licensing.
- Collaborate with nuclear safety analysis and licensing staff to meet technical and regulatory standards.
- Develop analytical models for sodium chemical reactions, aerosol generation, and transport.
- Conduct software quality assurance activities to qualify sodium fire modeling codes.
- Support the development of mechanistic source term methods for normal operations and postulated accidents.
- Develop analytical models for containment performance, including mass and energy release and leak rates.
- Support regulatory submittals and interactions with the NRC.
- Establish and support a containment strategy considering sodium fire impact.
- Work with interdisciplinary teams to establish safety, reliability, and performance standards for SSC.
- Document model development and analysis results.
- Perform engineering reviews and recommend safety-related design solutions.
Requirements
- M.S. or Ph.D. in nuclear engineering or relevant engineering discipline with at least 3 years of nuclear experience.
- In-depth knowledge of sodium chemical reactions, thermal-hydraulics, reactor dynamics, and transient phenomena.
- Experience with sodium fire analysis using codes such as CONTAIN-LMR, MELCOR, SPCA-ANL, SOFIRE II, NACOM, or similar.
- Familiarity with functional containment approach and nuclear design, regulatory requirements, and risk-informed performance-based guidance for Non-Light Water Reactors.
- Knowledge of PRA principles and familiarity with ASME/ANS Non-Light Water PRA standards (a plus).
- Experience in SFR safety analysis preferred.
- Strong quantitative, analytical, modeling, and reporting skills.
- Understanding of NQA-1 requirements related to analysis and software management.
- Experience with multidisciplinary engineering teams.
- Software engineering skills are a plus.
- Demonstrates high integrity, effective communication, and teamwork.
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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