Sodium Fire Analysis Engineer

System One; Bellevue (WA); On-site; USD 77,000 - 131,000; Part time

Job summary

System One is seeking a Sodium Fire Analysis Engineer to perform modeling calculations supporting the Natrium design and licensing. You will work with nuclear safety analysis and licensing staff to ensure regulatory requirements for nuclear safety and worker protection are met.

Responsibilities include developing analytical methods for sodium reactions and containment performance, verifying codes, and contributing to hazard analyses and regulatory submittals with the NRC.

Qualifications

• M.S. or Ph.D. in nuclear engineering or related field with at least 3 years of nuclear experience.
• In-depth knowledge of sodium chemistry, thermal-hydraulics, reactor dynamics, and transients.
• Experience with sodium fire analysis using the listed codes or similar.
• Familiarity with containment approaches and regulatory guidance for advanced reactors.
• Strong quantitative, analytical, modeling, and reporting skills.
• Understanding of NQA-1 requirements for analysis and software management.

Responsibilities

• Perform sodium fire modeling calculations to support design and licensing.
• Collaborate with safety and licensing teams to meet standards.
• Develop analytical models for sodium reactions, aerosols, and transport.
• Conduct software QA to qualify modeling codes.
• Support mechanistic source term methods for operations and accidents.
• Develop containment performance models including mass/energy release.
• Support NRC regulatory submittals and interactions.
• Document model development and analysis results.
• Review engineering calculations and propose safety improvements.

Skills

Nuclear safety analysis

Modeling & analysis

Regulatory knowledge

Communication

Team collaboration

Software QA

Education

MS or PhD in nuclear engineering or related field

Tools

CONTAIN-LMR

MELCOR

SOFIRE II

SPCA-ANL

NACOM

Job description

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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Ref: #161-Managed Staffing Charlotte