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/so4wCZ
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.
Ref: #161-Managed Staffing Charlotte
-
Senior Safety Verification and Validation Engineer
Bellevue, Washington
Job Title: Senior Safety Verification and Validation Engineer Type: Contract (12-months) Contractor Work Model: Remote About the Role: As a Senior Safety V&V Engineer, you will be instrumental in verifying and validating safety assessment models and so...
Date Posted: 03/09/2026 Recommended
-
Computational Thermal Hydraulics Analyst
Bellevue, WA
Job Title: Computational Thermal Hydraulics Analyst Type: Contract Compensation: $84.00 - $110.00 per hour Work Model: Remote Overview System One is seeking a Computational Thermal Hydraulics Analyst for a remote contract. The ideal candidate will brin...
Date Posted: 05/07/2026 Recommended
-
Senior Engineer
Bellevue, Washington
System One is seeking an experienced Senior Mechanical Engineer to support the design and development of reactor structures and components for a next-generation Generation IV advanced nuclear reactor program. This role is focused on high-integrity nucl...
Date Posted: 04/21/2026 Recommended
-
Core Thermal Hydraulics Engineer
Bellevue, WA
Job Title: Core Thermal Hydraulics Engineer Location: Bellevue, WA, United States Type: Contract Compensation: $69.00 - $115.00 per hour Contractor Work Model: Remote Hours: 40.0 hours per week Responsibilities Perform thermal-hydraulics analysis using...
Date Posted: 05/01/2026 Recommended
-
System Design Engineer
Bellevue, WA
Job Title: System Design Engineer Location: Bellevue, WA Type: Contract Contractor Work Model: Remote – offsite Hours: 40.0 Security Clearance: Not specified Overview Responsibilities Design nuclear and industrial process systems and sub-systems from c...
Date Posted: 04/21/2026 Recommended
-
Senior Safety Methods Engineer
Bellevue, WA
Job Title: Senior Safety Methods Engineer Location: Bellevue, WA Type: Contract (yearlong) typically extends on a yearly basis Compensation: $69 - $115 hourly Contractor Work Model: Fully Remote Paid holidays and PTO System One is seeking a Senior Safe...
Date Posted: 04/28/2026 Recommended
-
Senior Nuclear Safety Analysis Engineer
Bellevue, WA
Job Title: Senior Nuclear Safety Analysis Engineer Location: Bellevue, WA Type: Contract (yearlong) typically extends on a yearly basis Compensation: $69-$115 hourly Contractor Work Model: Fully Remote Paid Holidays | PTO System One is seeking to contr...
Date Posted: 04/28/2026 Recommended
-
System Design Engineer
Bellevue, WA
Position Summary System One is seeking a System Design Engineer to support advanced nuclear reactor projects. This role focuses on system design, analysis, and supplier oversight, supporting complex fluid systems within a highly regulated environment. ...
Date Posted: 04/21/2026 Recommended
-
Lead Instrumentation & Controls (I&C) Design Engineer
Bellevue, WA
Job Title: Lead Instrumentation & Controls (I&C) Design Engineer Type: Contract Long term Compensation: $84.00 – $135.00/hour (DOE) Contractor Work Model: Remote – offsite Responsibilities Support advanced nuclear reactor technology projects involving ...
Date Posted: 05/11/2026 Recommended
-
Supplier Manufacturing Engineer
Cheswick, PA
System One is seeking a Supplier Manufacturing Engineer to support critical supplier performance and manufacturing execution. This role is highly hands-on and focused on improving supplier processes, resolving manufacturing challenges, and driving on-t...
Date Posted: 03/26/2026 Recommended
-
Manufacturing Engineers
Cheswick, PA
Job Title: Manufacturing Engineers Company: System One Locations: Albany, NY | New York, NY | Philadelphia, PA Work Model Remote - Travel within 2-3 hours of your home base Position Type: Contract to Perm Position Overview System One is seeking a Suppl...
Date Posted: 04/29/2026 Recommended
-
Nuclear Engineer V, Electrical
perry, Ohio
Job Title: Nuclear Engineer V – Electrical Location: Perry Plant – Perry, OH Davis-Besse Plant – Oak Harbor, OH Beaver Valley Plant – Hookstown, PA Position Type: Contract (12 Months) Schedule: Monday–Friday | 8:00 AM – 5:00 PM Pay Rate: $115/hr (DOE) ...
Date Posted: 03/18/2026 Recommended
-
Supplier Manufacturing Engineer
Cheswick, PA
System One is seeking a Supplier Manufacturing Engineer based in the Greater Chicago area. This is a home-based role with frequent local travel to supplier sites to provide hands-on manufacturing engineering support, drive process improvements, and res...
Date Posted: 05/06/2026 Recommended
-
Safety Analysis Engineer, Nuclear
Bellevue, WA
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 model...
Date Posted: 05/09/2026 Recommended
-
System Engineer
Pittsburgh, Pennsylvania
Job Title: Electrical Final Assembly Foreman Location: Remote + Travel Type: Contract or Direct Hire Systems Engineer Position Overview The Systems Engineer is responsible for designing, integrating, and supporting complex hardware and software systems...
Date Posted: 03/25/2026 Recommended
-
Nuclear Engineer V, Mechanical
Perry, Ohio
Job Title: Nuclear Engineer V – Mechanical Type: Long-Term Contract Pay Rate: $115.00/hour Per Diem: $178/day Location: Nuclear facilities in Ohio Work Model: Remote then Onsite Perry Plant – Perry, OH Davis-Besse Plant – Oak Harbor, OH Beaver Valley P...
Date Posted: 05/05/2026 Recommended
-
Senior Electrical Engineer
Downers Grove, IL
Job Title: Senior Electrical Engineer Location: Downers Grove, IL Type: Contract (Contract to Direct Possible) Duration: 6 months Compensation: $67.40 - $82 (Flexibility DOE) Contractor Work Model: Onsite Hours: 40 hours/week (Monday - Thursday 7:30am ...
Date Posted: 02/24/2026 Recommended
-
Quality Assurance Engineer
Chattanooga, TN
Job Title: Quality Assurance Engineer, Nuclear Location: Chattanooga, TN Type: Direct Hire Work Model: Onsite Responsibilities: Support the implementation and execution of quality assurance program across nuclear, DoE, DoD, and aerospace projects. Revi...
Date Posted: 05/09/2026 Recommended
-
Refueling & Remote Handling Engineer 4
Corvallis, OR
Job Title: Refueling & Remote Handling Engineer 4 Type: Direct Hire Work Model: Remote (travel to client sites as needed) Overview Step into a fully remote, direct-hire opportunity as a Refueling & Remote Handling Engineer (Level 4) supporting advanced...
Date Posted: 05/07/2026 Recommended
-
Senior Project Engineer
Baton Rouge, Louisiana
Job Title: Senior Project Engineer Location: Baton Rouge, Louisiana Type: Direct Hire Compensation: $120,000.00 to $125,000.00 + Bonus Contractor 90/80 Schedule Core Responsibilities Technical Specifications: Determine requirements and select specializ...
Date Posted: 05/05/2026 Recommended
-
Project Manager
Canonsburg, Pennsylvania
Job Title: Project Manager Location: Canonsburg, PA Type: Direct Hire Compensation: $130000 annually Contractor Work Model: Hybrid Transportation Project Manager Civil Engineering | Transportation Infrastructure Objective This position is responsible f...
Date Posted: 03/10/2026 Recommended
-
Shipyard Design Manager
North Kingstown, Rhode Island
Job Title: Shipyard Design Manager Location: North Kingstown, Rhode Island Type: Direct Hire Compensation: Contractor Work Model: Onsite – onsite Responsibilities Lead, manage, and review all functional & detailed structural, outfitting, and production...
Date Posted: 05/12/2026 Recommended
-
Electrical Engineer PE
Westmont, Illinois
Job Title: Electrical Engineer PE Location: Westmont, Illinois Type: Direct Hire Compensation: $100,000.00 - $132,000 Contractor Work Model: Hybrid – onsite and remote Overview The Electrical Engineer, PE I is responsible for overseeing the creation of...
Date Posted: 05/08/2026 Recommended
-
Inside Sales Engineer, Nuclear
Oak Ridge, TN
Job Title: Inside Sales Engineer, Nuclear Location: Oak Ridge, TN Type: Direct Hire Contractor Work Model: Onsite Responsibilities Review requests for quotations/ proposals (RFQs/RFPs) to generate quotations and formal proposals. Enter orders upon rece...
Date Posted: 05/09/2026 Recommended
-
Sr. Project Manager
Canonsburg, Pennsylvania
Job Title: Sr. Project Manager Location: Canonsburg, PA Type: Direct Hire Compensation: $155000 annually Contractor Work Model: Hybrid Senior Transportation Project Manager Civil Engineering | Transportation Infrastructure Objective This position leads...
Date Posted: 03/05/2026 Recommended
-
EPC Project Controls Manager
Wheatfield, IN
Job Title: EPC Project Controls Manager Location: Hire will start from the Downers Grove, IL office and relocate to Wheatfield, IN once project mobilizes in August 2026. Type: Contract to Direct Hire (possible) Compensation: $TBD (exempt) Contractor Wo...
Date Posted: 02/27/2026 Recommended
-
Senior Civil Structural Engineer
Downers Grove, IL
Job Title: Senior Structural Engineer Location: Downers Grove, IL Type: Contract Compensation: $70/hr (DOE) Contractor Work Model: Onsite Hours: 40 hours/week System One is e are seeking a high-caliber Experienced Structural Engineer to join our Projec...
Date Posted: 04/23/2026 Recommended
-
Mechanical Engineer
Glenshaw, Pennsylvania
Job Title: Mechanical Engineer Location: Glenshaw, PA Type: Direct Hire Compensation: 100-120K Contractor Work Model: On site Objective Execute mechanical engineering assignments involving specifications, calculations, reports, and project studies for ...
Date Posted: 02/18/2026 Recommended
-
Mechanical Engineer
Wheatland, Pennsylvania
Job Title: Mechanical Engineer Location: Wheatland, PA Type: Direct Hire Contractor Work Model: Onsite Objective Develop and maintain BOMs, production layouts, and product specifications while driving process improvements, cost reductions, and product ...
Date Posted: 02/25/2026 Recommended
-
Lead Engineering Designer - Bentley MicroStation
Leawood, KS
Job Title: Lead Engineering Designer - Bentley MicroStation Location: Leawood, KS, United States Type: Contract Contractor Work Model: Onsite – onsite Hours: 40.0 System One LLC is seeking a Lead Engineering Technician to support Advanced Power Generat...
Date Posted: 04/21/2026 Recommended