Code Validation Experiment Design and Scaling Analysis
Bellevue, WA
Experience: 0
Category: Engineering
Contractor Work Model: Onsite
Brand: System One
Job ID: 350244
Date Posted: 05/07/2026
Shortcut: http://jobs.systemone.com/A3Vc3C
Job Title: Code Validation Experiment Design and Scaling Analysis
Type: Contract
Overview
System One is seeking a Code Validation Experiment Design and Scaling Analysis Consultant to support one of our clients’ nuclear programs, focused on verification and validation (V&V) of nuclear systems analysis codes and scaling methodology/scaling analysis for integral and separate effects testing (IET/SET) in alignment with Regulatory Guide 1.203.
This is a remote, full-time contract role (40 hrs/week) partnering with cross-functional engineering teams to support code assessment, benchmarking, and experiment design activities, with minimal travel (0–5%) as needed.
Responsibilities
- Review and develop the scaling methodology that supports the IETs and SETs design and code assessment meeting requirements in Regulatory Guide 1.203.
- Perform and evaluate scaling analysis to IETs and SETs to identify similarity between experiments and the Natrium prototype design.
- Mentor and guide TerraPower engineers in experiment design and scaling analysis.
- Provide insights to the code assessment and the alignment with PIRT.
- Review and develop assessment bases (benchmark, identify applicable tests, etc.) and evaluate models against tests with benchmark calculations.
- Review and contribute to test requirements development, experiment design, instrumentation, and operation.
- Participate in verification and validation activities, including engineering reviews of analyses and methods development.
- Extensive experience in developing scaling methodology and performing scaling analysis under RG 1.203 requirements.
- Deep understanding of Nuclear IETs and/or SETs design, operation, and application for nuclear code validation or assessment.
- Knowledge of nuclear systems thermal-hydraulics, reactor dynamics, and transient phenomena.
- Experience with nuclear safety analysis software such as SAS4A/SASSYS-1, SAM, GOTHIC, RELAP5, TRACE, MELCOR, or equivalent.
- Familiarity with nuclear design, regulatory requirements, and risk-informed performance-based guidance for Non-Light Water Reactors.
- Experience with EMDAP and Regulatory Guide 1.203.
- Desirable: Experience with SFR safety methods and other reactor types like Light Water Reactors.
- Strong quantitative, analytical, modeling, and reporting skills.
- Understanding of NQA-1 requirements related to test programs and code validation.
- Ability to work effectively in multidisciplinary engineering teams.
- Ph.D. in nuclear engineering or related field with at least 5 years of nuclear experience.
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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