Senior Safety Verification and Validation Engineer
Bellevue, Washington
Experience: 10
Category: Engineering
Contractor Work Model: Remote
Brand: System One
Compensation Range: 72.00 - 90.00 Per Hour
Job ID: 346239
Date Posted: 02/12/2026
Shortcut: http://jobs.systemone.com/GLsJgu
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 software integral to reactor safety analysis and licensing. You will work on developing and assessing benchmark models, ensuring compliance with NRC guidance (RG 1.203), and supporting safety methodology development for next-generation nuclear systems, including Sodium Fast Reactors (SFR).
Key Responsibilities:
- Develop and maintain assessment bases, including benchmarks and applicable tests, to support safety evaluations.
- Identify uncertainties within experimental data and develop robust benchmark models.
- Assess evaluation models (EM) using NRC’s RG 1.203 guidance, ensuring safety standards are met.
- Coordinate and execute safety code verification and validation activities, including simulations, Benchmarking with Integral Effect Tests (IETs), and Separate Effect Tests (SETs).
- Support scaling analyses, code applicability determinations, and software commercial-grade dedication.
- Contribute to the development of analytical and computational models, integrating them into transient analysis codes in collaboration with safety analysis teams.
- Review engineering analyses and contribute to safety assessments for licensing documentation.
- Collaborate with interdisciplinary teams to establish safety, performance, and quality requirements for core and reactor systems.
- Support code development, maintenance, and performance evaluation for system transient codes and safety analyses
- Extensive experience with nuclear safety software verification, validation, and system transient analysis codes (RELAP5-3D, TRACE, MELCOR, SAS4A/SASSYS-1, SAM, or similar).
- Strong understanding of nuclear thermal-hydraulic fundamentals, reactor dynamics, and transient phenomena.
- Proven expertise with safety analysis methodologies, including experience with NRC RG 1.203.
- Familiarity with EMDAP and regulatory requirements specific to nuclear safety.
- Knowledge of SFR safety methods and experience with other reactor types such as LWRs is highly desirable.
- Proficiency in programming languages such as Fortran, C++, or Python is a strong plus.
- Advanced degree in nuclear engineering or related field, with at least 5 years of relevant experience.
- Demonstrated strong analytical, modeling, and report-writing abilities.
- Experience working within NQA-1 quality assurance programs and multidisciplinary engineering teams.
- Exceptional communication skills, high integrity, and a collaborative mindset.
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.
#LI-BB1
Ref: #161-Managed Staffing Charlotte
-
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: 02/12/2026 Recommended
-
Senior Safety Methodology Engineer
Bellevue, WA
Job Title: Senior Safety Methodology Engineer Location: Bellevue, WA Type: Contract Compensation: $67 - $110 hourly Contractor Work Model: Remote About This Opportunity System One is seeking to place a Senior Safety Methodology Engineer with our client...
Date Posted: 01/08/2026 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: 02/12/2026 Recommended
-
Plant Radiological Integration Engineer
Bellevue, WA
Job Title: Plant Radiological Integration Engineer Location: Bellevue, WA Type: Contract Compensation: $69 - $115 hourly System One is seeking a Plant Radiological Integration Engineer to support our client’s advanced nuclear reactor project. This role...
Date Posted: 01/08/2026 Recommended
-
Environmental and Seismic Engineer
Oak Ridge, Tennessee
Environmental & Seismic Engineer – Oak Ridge, TN (Onsite) Type: Direct Hire Work Model: Onsite (Relocation assistance not provided) System One is seeking an experienced Environmental and Seismic Engineer to support nuclear facility programs in Oak Ridg...
Date Posted: 02/12/2026 Recommended
-
Nuclear Digital I&C IV&V Engineer
Corvallis, Oregon
Job Title: Nuclear Digital I&C IV&V Engineer Location: Corvallis, Oregon Type: Contract Contractor Work Model: Remote Job Description: Are you an expert in Independent Verification and Validation (IV&V) with a passion for ensuring the safety and reliab...
Date Posted: 02/09/2026 Recommended
-
NYS Professional Engineer (Civil)
Bronx, New York
Job Title: NYS Professional Engineer (Civil) Type: Contract Location: Bronx, NY Compensation: $30 - $50 hourly Contractor Work Model: Onsite Position Overview Seeking a licensed Civil/Geotechnical Professional Engineer (PE) with hands-on pile inspectio...
Date Posted: 01/29/2026 Recommended
-
Controls & Instrumentation Engineer
Lake Mary, FL
Job Title: Controls & Instrumentation Engineer Location: Lake Mary, FL Role Overview The Instrumentation & Controls Engineer will be responsible for: Specification and procurement of Instrumentation for large frame Gas Turbines. Creation and maintenanc...
Date Posted: 01/13/2026 Recommended
-
Resident Engineer - Nuclear
Loveland, Colorado
Resident Engineer Location: Onsite in Loveland, CO Pay Rate: $50–$80/hour Position Type: Contract (via System One) System One is seeking a highly motivated Nuclear Island Resident Engineer to support supplier activities on-site at James Fisher Technolo...
Date Posted: 01/09/2026 Recommended
-
Structural Design Engineer, Commercial Nuclear
Atlanta, Georgia
Job Title: Structural Design Engineer, Commercial Nuclear Location: Atlanta, Georgia Type: Contract Compensation: Contractor Work Model: Remote Hours: Add the job’s scheduled days and times (delete if not needed) Security Clearance: List security clear...
Date Posted: 01/08/2026 Recommended
-
Senior Project Engineer
Cambridge, Massachusetts
Job Title: Senior Project Engineer Location: Cambridge, Massachusetts Type: Direct Hire Compensation: $160000 - $210000 annually Contractor Work Model: Hybrid System One is currently seeking a Senior Project Engineer on a direct hire position located i...
Date Posted: 02/03/2026 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. Type: Contract to Direct Hire (possible) Compensation: $60 (exempt) Contractor Work Model: Onsite...
Date Posted: 02/20/2026 Recommended
-
Sr Structural Designer
Cannonsburg, PA
Job Title: Civil / Structural Senior Designer Position Overview We are seeking an experienced Civil / Structural Senior Designer to join our engineering team. This role involves leading complex design and drafting projects, creating detailed 2D and 3D ...
Date Posted: 01/30/2026 Recommended
-
Senior Nuclear Electrical Engineer
Stonington, Connecticut
Senior Nuclear Electrical Engineer Charlotte, NC 28273 or Stonington, CT 06378 System One is seeking a Senior Nuclear Electrical Engineer in Charlotte, NC or Stonington, CT to perform a variety of engineering and design activities involving power plant...
Date Posted: 12/30/2025 Recommended
-
Senior Nuclear Electrical Engineer
Charlotte, North Carolina
Senior Nuclear Electrical Engineer Charlotte, NC 28273 System One is seeking a Senior Nuclear Electrical Engineer in Charlotte, NC to perform a variety of engineering and design activities involving power plant upgrades and/or new power plant projects....
Date Posted: 12/30/2025 Recommended
-
Senior Procurement Engineer
Hancock’s Bridge, New Jersey
Job Title: Senior Procurement Engineer Location: Hancock’s Bridge, New Jersey Type: Contract - 10 month (through end of 2026) w/ Potential for Extension Contractor Work Model: Hybrid- 2 days/week in office System One is seeking a Senior Procurement Eng...
Date Posted: 02/19/2026 Recommended
-
Senior Piping Designer
Cannonsburg, Pennsylvania
Job Title: Senior Piping Designer Location: Canonsburg, PA Type: Direct Hire Contractor Work Model: Onsite Hours: 1st shift Senior Piping Designer (Plant 3D) Objective We are seeking an experienced Piping Designer to lead the development of intricate 3...
Date Posted: 12/26/2025 Recommended
-
Mechanical Stress Analysis Engineer (RES)
Bellevue, WA
Reactor Enclosure System (RES) Mechanical Stress Analysis Engineer – Contract Location: Remote Pay Rate: $52–$85 per hour Contract Length: 6-month contract with possible extension Position Overview System One is seeking an experienced Reactor Enclosure...
Date Posted: 01/05/2026 Recommended
-
Electrical Project Manager
Lockhart, TX
Job Title: Electrical Project Manager Location: Lockhart, Texas Type: Direct Hire System One is assisting a client in hiring an Electrical Project Manager to support a large-scale mission critical project in the Lockhart, Texas. This role is on-site an...
Date Posted: 01/02/2026 Recommended
-
Electrical Project Manager
Austin, TX
Job Title: Electrical Project Manager Location: Austin, Texas Type: Direct Hire System One is assisting a client in hiring a Electrical Project Manager to support a large-scale mission critical project in the Austin, Texas region. This role is on-site ...
Date Posted: 01/02/2026 Recommended
-
EHS Specialist
Okmulgee, Oklahoma
Environmental Health & Safety (EHS) Specialist Experience Level: 5+ Years Reports To: EHS Manager Position Summary We are working with a client seeking an experienced EHS Specialist to lead and support safety initiatives in a manufacturing environment....
Date Posted: 01/29/2026 Recommended
-
Nuclear Fuel Performance and Development Engineer
Bellevue, WA
Job Title: Nuclear Fuel Performance and Development Engineer Type: Contract (yearlong) typically extends on a yearly basis. Compensation: $54 - $90 hourly Contractor Work Model: Fully Remote Paid Holidays | PTO System One is seeking a highly motivated ...
Date Posted: 02/12/2026 Recommended
-
Electrical - Project Engineer
Raleigh, North Carolina
Electrical Project Engineer ? Raleigh, NC | Full-Time | Hybrid Work Schedule Available Are you a skilled Electrical Engineer looking for an opportunity to lead complex building system projects and make a lasting impact? Join a collaborative, employee-o...
Date Posted: 02/09/2026 Recommended
-
Senior Inspector - Geotechnical
Parsippany, NJ
Job Title: Senior Inspector - Geotechnical Location: Parsippany, NJ Type: Contract Compensation: Hourly, $55-75 Contractor Work Model: Onsite/In the Field 95% of the time. Hours: Standard Hours/Flexible 1st for Inspection We’re seeking a Senior Geotech...
Date Posted: 12/04/2025 Recommended
-
Structural Designer or Drafter
Cannonsburg, PA
Job Title Civil / Structural Designer / Drafter (Junior, Mid-Level, Senior, Lead) Position Overview We are seeking Civil / Structural Designers and Drafters at multiple experience levels to join our growing engineering team. These roles support a wide ...
Date Posted: 01/05/2026 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
-
EMC Laboratory Supervisor
Atlanta , Georgia
Job Title: EMC LABORATORY SUPERVISOR Location: Knoxville, TN (Relocation Required) Work Model: Onsite System One is actively recruiting for an EMC LABORATORY SUPERVISOR for a permanent position located in Knoxville, Tennessee. This position will suppor...
Date Posted: 01/12/2026 Recommended
-
EMC Laboratory Supervisor
Shelby, North Carolina
Job Title: EMC LABORATORY SUPERVISOR Location: Knoxville, TN (Relocation Required) Work Model: Onsite System One is actively recruiting for an EMC LABORATORY SUPERVISOR for a permanent position located in Knoxville, Tennessee. This position will suppor...
Date Posted: 01/12/2026 Recommended
-
Drainage Engineer
Guaynabo, Puerto Rico
Job Title: Drainage Engineer Location: Guaynabo, Puerto Rico Type: Direct Hire Compensation: $72000 - $93000 annually Contractor Work Model: Onsite System One is actively seeking a Drainage Engineer for a direct hire opportunity with a client in Guayna...
Date Posted: 01/20/2026 Recommended
-
EMC Laboratory Supervisor
Knoxville, TN
System One is actively seeking an EMC LABORATORY SUPERVISOR for a permanent position located in Knoxville, Tennessee. This position will support our client, a leading nuclear engineering services company headquartered in Knoxville, Tennessee with a wor...
Date Posted: 01/29/2026 Recommended