Nuclear Methods Engineer
Bellevue, WA
Experience: 5
Education: BA
Category: Energy
Contractor Work Model: Remote
Brand: System One
Compensation Range: 52.00 - 85.00 Per Hour
Job ID: 377104
Date Posted: 07/20/2026
Shortcut: http://jobs.systemone.com/0NmOiZ
Job Title: Nuclear Methods Engineer
Location: Bellevue, WA
Type: Contract
Compensation: $52.00 - $85.00
Work Model: Remote – offsite
Hours: 40.0
Overview
System One is seeking a highly motivated Nuclear Methods Software Engineer for a yearlong, fully remote contract position. In this role, you will support the nuclear methods team:
Responsibilities
- Create formal documentation of nuclear methods software requirements, design, implementation, and testing in support of licensing our client’s reactors
- Update, improve, and/or create software to satisfy all licensing requirements during the Validation and Verification (V&V) process
- Incorporate additional 3rd-party programs in our simulation ecosystem as necessary to support licensing
- Design and execute sensitivity studies to understand the effects and validity of various modeling assumptions, including meshing, physics coupling, transport options, cross section preparation, fission product models, spatial kinetics, etc., and adjust methods as necessary
- Train and support reactor designers and developers in the use of the design software suite
- Build and apply methods to assess the propagation of uncertainty and their effect on safety margins
- Enhance engineering team's ability to build models and make meaningful conclusions from simulation output through input tools, visualization, reports, etc.
- B.S. degree in Nuclear Engineering with 5-20 years of experience
- M.S. degree in Nuclear Engineering with 3-15 years of experience
- Ph.D. degree in Nuclear Engineering with 2-10 years of experience
- Fast reactor physics and design intuition
- Experience in nuclear design/analysis methodologies including criticality, flux/power distributions, fuel management optimization, reactivity coefficients, shielding, activation, control rod worth, detector response, and uncertainty analysis
- Knowledge of reactor physics analysis methods (deterministic and stochastic particle transport, isotopic depletion, perturbation theory, nuclear data, kinetics, etc.)
- Experience with nuclear engineering software such as DIF3D, MC2, PARTISN, MCNP, Serpent, SCALE, PARCS, APA, CASMO, DRAGON, ARMI, etc. preferred
- Strong computational expertise and programming skills in scientific computing languages (Python, C++, Fortran bonus)
- Proven ability to automate simulation tools and integrate software
- Experience with software development tools (IDEs, version control, debuggers, documentation tools)
- Knowledge of nuclear methodology interaction with the NRC under an ASME NQA-1 compliant QA environment preferred
- Good understanding of numerical methods and applied mathematics (PDEs, stability, statistics, analysis, dynamics)
- Strong technical documentation skills
- Ability to meet aggressive schedules and deliver consistently
- Self-motivated with a passion for software best practices and teamwork
- Excellent verbal communication skills
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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