Safety Analysis Engineer, Nuclear
Bellevue, WA
Experience: 0
Category: Energy
Contractor Work Model: Remote
Brand: System One
Compensation Range: 69.00 - 115.00 Per Hour
Job ID: 348826
Date Posted: 05/26/2026
Shortcut: http://jobs.systemone.com/mpE5AY
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 modeling (RELAP5-3D or similar) to support U.S. NRC licensing submittals. The engineer develops and documents system models, analyzes AOOs/DBEs/DBAs and licensing-basis events, supports FSAR-style reporting, and collaborates across engineering teams on methods development, V&V/benchmarking, and uncertainty/sensitivity studies.
Responsibilities
- Perform deterministic safety analysis using RELAP5-3D code for the Natrium sodium fast reactor
- Analyze design basis accidents (DBAs) and licensing basis events (LBEs) to support reactor licensing with US NRC
- Model and integrate various plant systems within safety analysis computer codes
- Develop safety analysis reports, including the Final Safety Analysis Report (FSAR)
- Collaborate with cross-functional teams on core and reactor SSC requirements and licensing documentation
- Contribute to safety method development, code assessment, scaling analysis, and validation activities
- Maintain documentation of models and analysis results
- Conduct engineering reviews of analysis and design deliverables
- Assess plant transient benchmark tests and perform relevant benchmark calculations
- Support implementation of software capabilities for transient and accident analysis
Requirements
- Extensive experience in nuclear safety analysis and reactor system modeling
- Proficiency with safety analysis software such as RELAP5, TRACE, TRAC, SAS4A/SASSYS-1, or similar
- Experience in transient and accident analysis for NRC submittals (e.g., Chapter 15 FSAR)
- Strong knowledge of nuclear systems thermal-hydraulics, reactor physics, and transient phenomena
- Familiarity with nuclear reactor instrumentation, control systems, and safety regulation compliance
- Degree: B.S. with 10+ years or M.S./Ph.D. with 5-7+ years of nuclear engineering or relevant field
- Demonstrated analytical, modeling, and reporting skills
- Experience working in multidisciplinary teams and under quality assurance programs (NQA-1)
- Strong software engineering skills in Python, Fortran, C++, or similar are a plus
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.
#M-
#LI-
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: 05/26/2026 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: 05/20/2026 Recommended
-
Senior Safety Methods Engineer (Nuclear)
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: 05/20/2026 Recommended
-
Senior Safety Methods Engineer
Bellevue, WA
Job Title: Senior Safety Methods Engineer Location: Bellevue, WA Type: Contract, 12 months Compensation: $37.00 - $74.00 Contractor Work Model: Onsite, remote available for exceptional non-local candidates. Overview: This role develops and qualifies sy...
Date Posted: 05/26/2026 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
-
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
-
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
-
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
-
Fuel Handling Mechanical Design Engineer
Bellevue, WA
Job Title: Fuel Handling Mechanical Design Engineer Location: Bellevue, WA Type: 12-month Contract Contractor Work Model: Remote Position Overview: We are seeking a dynamic and highly motivated Fuel Handling Mechanical Design Engineer for a long-term c...
Date Posted: 05/26/2026 Recommended
-
Plant Integrated Analysis Engineer
Bellevue, WA
Overview: System One is seeking a highly capable and motivated Plant Integrated Analysis Engineer to support advanced nuclear reactor development within a sodium-cooled reactor program. This role focuses on plant-level thermal-hydraulic and control sys...
Date Posted: 04/13/2026 Recommended
-
System Transients Analysis Engineer
Bellevue, Washington
Job Title: System Transients Analysis Engineer Location: Bellevue, WA Job Type: Contract Work Model: Hybrid/Onsite Preferred Overview System One is seeking a highly capable and motivated System Transients Analysis Engineer to support an advanced sodium...
Date Posted: 05/18/2026 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
-
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
-
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
-
Project Engineer
Okmulgee, Oklahoma
Project Engineer Eligibility: Must be a U.S. Citizen and not require sponsorship Position Summary System One is working with a client seeking a results-driven Project Engineer to lead and support capital projects from concept through execution. This ro...
Date Posted: 05/12/2026 Recommended
-
Process Engineer
Waltham, Massachusetts
Job Title: Process Engineer Location: Waltham, Massachusetts Type: Contract Compensation: $45.00 - $51.00 per hour Work Model: Onsite Join a leading global medical technology organization focused on life-changing healthcare innovation and high-quality ...
Date Posted: 05/29/2026 Recommended
-
Mechanical Engineer
Richland, Washington
Job Title: Mechanical Engineer Location: Richland, Washington Type: Contract Contractor Work Model: Onsite – onsite Hours: 40.0 Overview Responsibilities Create, modify, and update 2D drawings and 3D models using AutoCAD and SolidWorks Assist in mechan...
Date Posted: 05/05/2026 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
-
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
-
Power & Recovery Engineer
Spring Grove, PA
Job Title: Power & Recovery Engineer Location: Spring Grove, PA Type: Direct Hire Work Model: Onsite – onsite Responsibilities Support the efficient operation, maintenance, housekeeping, and safety of the Mill Power, Recovery, and Recaust Areas. Work w...
Date Posted: 06/04/2026 Recommended
-
Sr. Metallurgist Process Engineer
Austintown, Ohio
Job Title: Sr. Metallurgist Process Engineer Location: Austintown, Ohio Type: Contract Compensation: 120-130K Contractor Work Model: Onsite – onsite Hours: 40.0 Responsibilities Direct and oversee casting and metallurgical programs to enhance operation...
Date Posted: 03/20/2026 Recommended
-
Senior Engineer - Structural
Fort Worth, TX
Job Title: Senior Engineer - Structural Location: Fort Worth, TX Type: Direct Hire Compensation: $120,000.00 Work Model: Hybrid – onsite and remote Hours: 40.0 Requirements Bachelor of Science in Civil or Structural Engineering. Active Professional Eng...
Date Posted: 04/17/2026 Recommended
-
Engineer - Electrical Test Engineer II
Kent, WA
Job Title: Engineer - Electrical Test Engineer II Location: Kent, WA / On-Site Type: Contract Pay Rate: $78/hour - Salary Responsibilities Plan, develop, and execute integrated system testing of launch vehicles with a focus on electrical subsystems. De...
Date Posted: 05/25/2026 Recommended
-
Principal Engineer, Seismic CSA Integration and Oversight
Bellevue, WA
Job Title: Principal Engineer Seismic/CSA Integration & Oversight Type: Contract, 12 months Compensation: $69.00 - $115.00 per hour Contractor Work Model: Remote Responsibilities Support the development of plant level requirements and strategies relate...
Date Posted: 05/26/2026 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 Packaging Engineer
Tempe, Arizona
Job Title: Senior Packaging Engineer Location: Tempe, Arizona Type: Contract Compensation: $70 - $80/hr Work Model: Hybrid – onsite and remote Overview Join a collaborative, innovation-driven leader in the regulated manufacturing industry as a Packagin...
Date Posted: 06/04/2026 Recommended
-
Project Engineer / Job Coordinator
Spartanburg, SC
Job Title: Project Engineer / Job Coordinator Location: Spartanburg, SC Type: Direct Hire Contractor Work Model: Onsite – onsite Overview System One is hiring a full-time Project Engineer / Job Coordinator local to the Spartanburg, SC area who will sup...
Date Posted: 06/02/2026 Recommended
-
Commissioning Engineer
South Hill, VA
Job Title: Commissioning Engineer Location: South Hill, VA (on-site; 50% office / 50% field) Compensation: $85,000–$125,000 base (depending on experience/interview) Schedule: Monday–Friday, around 7:00am–3:00pm for field support; office hours are flexi...
Date Posted: 06/04/2026 Recommended
-
I&C V&V Design Engineer
Bellevue, WA
Job Title: I&C V&V Design Engineer Location: Bellevue, WA, United States Compensation: $67–$110/hr Contractor Work Model: Remote – offsite System One is seeking an experienced Instrumentation & Control (I&C) Verification & Validation (V&V) Engineer to ...
Date Posted: 05/19/2026 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: 06/01/2026 Recommended