Senior Mechanical Design Engineer
Bellevue, WA
Experience: 0
Category: Energy
Contractor Work Model: Undecided
Brand: System One
Compensation Range: 52.00 - 85.00 Per Hour
Job ID: 377105
Date Posted: 07/20/2026
Shortcut: http://jobs.systemone.com/uKUJt5
Job Title: Senior Mechanical Design Engineer
Location: Bellevue, WA
Type: Contract
Compensation: $52.00 - $85.00
Onsite work model, remote work model available for exceptionally qualified non-local candidates.
Responsibilities:
- Coordinate and utilize inputs and requirements from Engineering and Project teams to produce equipment and components design solutions, including drawings, models, and specifications.
- Perform planning for design activities and manage execution to the established plans.
- Propose and develop tests required to validate functional and performance design requirements.
- Perform scoping analysis and trade studies for design options.
- Interface with cross functional team for design and analysis activities.
- Perform engineering reviews of team members’ products.
- Interface with engineers and subcontractors, providing direction and mentoring.
- Support continuous learning and application of nuclear industry best practices to maintain the highest quality of engineering design and proactively identify process change/enhancement opportunities.
- B.S. degree in Mechanical engineering or equivalent preferred.
- Minimum of five years of equipment / component design experience; relevant M.S. and Doctorate degrees may be credited for up to two or four years of experience respectively.
- Experience with 3D CAD, SolidWorks preferred.
- Experience with design of experiments with an emphasis on product testing.
- Experience in finite element stress analysis, mechanical analysis methods, first principles calculations.
- Familiarity in Design for Manufacturability (DFM) and Design for Assembly (DFA).
- Excellent writing and communication skills.
- Strong analytical/problem solving skills, creative thinker.
- Ability to work with minimum direction to solve challenging problems.
- Ability to work on multiple tasks concurrently during a given work week.
- Excellent attention to detail.
- Experience or familiarity with the rules of ASME Boiler Pressure Vessel Code Section III Division 5.
- Design experience in the nuclear industry with core assemblies is highly desirable.
- Experience with nuclear industry operation, DOE and NRC regulations.
- Knowledge of neutronics, thermal-hydraulics, and/or structural analysis.
- Ability to lead multidisciplinary design activities.
- Experience in finite element stress analysis using ANSYS and first principles calculations.
- Experience with writing test requirements documents and developing nuclear product test campaigns.
- Experience with manufacturing and methodology, especially in first article productions.
- Experience with technical evaluation, review, and nonconformance evaluation of vendors and suppliers.
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
-
Fuel Handling Design Engineer
Bellevue, Washington
Job Title: Fuel Handling Design Engineer Location: Bellevue, Washington Type: Contract Contractor Work Model: Hybrid Hours: 40.0 Overview Responsibilities Design nuclear fuel handling systems and fuel handling equipment from requirements development th...
Date Posted: 06/09/2026 Recommended
-
Plant Integration Engineer – Steam & Power Systems
Bellevue, Washington
Job Title: Plant Integration Engineer – Steam & Power Systems Location: Bellevue, WA Type: Contract Compensation: $56.00 - $96.00 per hour Work Model: Onsite – onsite Overview Responsibilities Provide technical integration and oversight for Energy Isla...
Date Posted: 07/08/2026 Recommended
-
System Design Engineer
Bellevue, WA
System Design Engineer Location: Bellevue, WA Job Type: Contract Work Model: Remote Schedule: 40 hours/week System One is seeking an experienced System Design Engineer to support the development of advanced nuclear energy systems. This role is responsi...
Date Posted: 06/26/2026 Recommended
-
Component Design Engineer (RPA) – Contract
Bellevue, WA
Job Title: Component Design Engineer (RPA) – Contract Type: Contract Compensation: $52.00 - $85.00 per hour Contractor Work Model: Remote – offsite System One is seeking a Contractor to create design solutions for the design development of various reac...
Date Posted: 05/12/2026 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: 06/16/2026 Recommended
-
Senior Mechanical Engineer (Vessels)
Bellevue, WA
Job Title: Senior Mechanical Engineer (Vessels) Location: Bellevue, WA Type: Contract Compensation: $69.00 - $115.00 Contractor Work Model: Remote – offsite Hours: 40.0 Overview System One is seeking a Senior Mechanical Engineer to create design soluti...
Date Posted: 06/15/2026 Recommended
-
Mechanical Analysis and Methods Engineer (Core)
Bellevue, WA
Job Title: Mechanical Analysis and Methods Engineer (Core) Location: Bellevue, WA Type: Contract Compensation: $52.00 - $85.00 Work Model: Remote – offsite Hours: 40.0 Overview System One is seeking a highly capable and motivated mechanical analysis en...
Date Posted: 07/21/2026 Recommended
-
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: 06/15/2026 Recommended
-
Nuclear Engineering Program Developer
Bellevue, WA
Job Title: Nuclear Engineering Program Developer Location: Bellevue, WA Type: Contract Compensation: $56.00 - $95.00 per hour Work Model: Remote – offsite Hours: 40.0 Overview System One is hiring a Nuclear Engineering Program Developer who will be foc...
Date Posted: 07/08/2026 Recommended
-
Nuclear Engineering Program Specialist and Procedure Writer Engineer
Bellevue, Washington
Nuclear Engineering Plant Program Specialist / Nuclear Procedure Writer Job Type: Contract - Remote Schedule: 40 hours/week System One is seeking an experienced Nuclear Engineering Plant Program Specialist / Nuclear Procedure Writer to support the deve...
Date Posted: 06/30/2026 Recommended
-
RAC System Design Engineer (Mechanical)
Bellevue, WA
Job Title: RAC System Design Engineer (Mechanical) $54 - $90 an hour Location: Remote 12 months with possible extension Position Overview System One is seeking a RAC System Design Engineer (Mechanical) to support the design and delivery of an advanced ...
Date Posted: 06/09/2026 Recommended
-
Fuel Handling System Design Engineer
Bellevue, WA
Job Title: Fuel Handling System Design Engineer Location: Bellevue, WA Type: Contract Compensation: $52.00 - $85.00 Onsite work model, remote work model available for exceptionally qualified non-local candidates. Responsibilities: Design of nuclear fue...
Date Posted: 07/20/2026 Recommended
-
Analyst - Structural III
Kent, WA
Job Title: Structural Analyst III Location: Kent, WA Type: Contract / On-Site Compensation: $94 per hour Responsibilities • Perform strength assessments utilizing both classical analysis techniques and finite element analysis (FEA) for tooling and grou...
Date Posted: 06/29/2026 Recommended
-
Subject Matter Expert, Rotating Machinery
Bellevue, WA
Job Title: Subject Matter Expert, Rotating Machinery Type: Long-term Contract Work Model: Remote Responsibilities: Provide oversight for first-of-a-kind large nuclear fluid pumps through design, testing, and manufacturing. Review supplier deliverables ...
Date Posted: 06/29/2026 Recommended
-
CRD System Design Engineer (Mechanical)
Bellevue, WA
Job Title: CRD System Design Engineer (Mechanical) Company: System One Location: Bellevue, WA / Remote Pay Rate: $54.00 - $90.00 per Hour Position Type: Contract Duration: 12 Months with Possible Extension Position Overview System One is seeking a CRD ...
Date Posted: 06/09/2026 Recommended
-
Plant Radiological Integration Engineer
Bellevue, WA
Job Title: Plant Radiological Integration Engineer Location: Bellevue, WA Type: Contract Compensation: $69.00 – $115.00 Work Model: Remote – offsite Hours: 40.0 System One is hiring a Plant Radiological Integration Engineer to provide the following s...
Date Posted: 07/08/2026 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: 06/26/2026 Recommended
-
Test Engineer
Bellevue, Washington
Test Engineer Company: System One Pay Rate: $37.00 - $74.00/hour Position Type: Contract Location: Onsite Bellevue, Washington. Position Overview System One is seeking a Test Engineer to support the development, planning, execution, and reporting of co...
Date Posted: 07/09/2026 Recommended
-
Pipe Stress Engineer
Naperville, IL
Job Title: Pipe Stress Engineer Location: Remote Type: Contract Overview System One has an exciting opportunity for Pipe Stress Engineer to support commercial nuclear projects. Responsibilities Perform stress analyses for client projects involving modi...
Date Posted: 06/17/2026 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: 06/09/2026 Recommended
-
Junior I & C Design Engineer
Bellevue, Washington
I&C Design Engineer Location: Bellevue, WA Job Type: Contract Schedule: 40 hours/week System One is seeking an experienced Instrumentation & Controls (I&C) Design Engineer to support the design and integration of advanced nuclear reactor systems. This ...
Date Posted: 06/30/2026 Recommended
-
Senior Mechanical Engineer
Salt lake city, Utah
Job Title: Senior Mechanical Engineer Location: Salt Lake City, Utah Type: Contract To Hire Compensation: $67.30 - $79.32 per hour Work Model: Hybrid – onsite and remote Hours: 40.0 Responsibilities Lead the mechanical design and technical execution of...
Date Posted: 07/08/2026 Recommended
-
RAC System Engineer (Process & I&C)
Bellevue, WA
Job Title: RAC System Engineer (Process & I&C) Contractor Work Model: Remote – offsite Responsibilities: Design nuclear and industrial mechanical, instrumentation, and control systems, including requirements definition, analysis, specifications, and sy...
Date Posted: 06/15/2026 Recommended
-
Test Engineer
Bellevue, Washington
Test Engineer (Contract) Location: Bellevue, WA or Everett, WA (100% Onsite) Company: System One Pay Rate: $52.00 - $85.00/hour Position Type: Contract Position Overview System One is seeking a Test Engineer to support cutting-edge testing and research...
Date Posted: 07/06/2026 Recommended
-
Mechanical Engineer III
Perry, OH
Job Title: Mechanical Engineer III Location: Perry, OH Type: Contract Compensation: $52.00 - DOE Contractor Work Model: Onsite – onsite Hours: 40 hours/week Security Clearance: Must be a US Citizen due to Nuclear restrictions Overview System One is e a...
Date Posted: 06/22/2026 Recommended
-
Senior Nuclear Safety Analysis Engineer (Accident/Transient Methods)
Bellevue, WA
Job Title: Senior Safety Methods Engineer Location: Bellevue, WA Type: Contract Compensation: $69 - $115 hourly Contractor Work Model: Fully Remote Paid holidays and PTO System One is seeking a Senior Safety Methods Engineer to perform design and licen...
Date Posted: 07/08/2026 Recommended
-
Senior Mechanical Designer
Bellevue, Washington
Position Overview System One is seeking a highly motivated Senior Mechanical Designer to support the design and development of advanced Generation IV nuclear reactor systems. This role is responsible for creating structural and mechanical design soluti...
Date Posted: 06/26/2026 Recommended
-
IT Systems Engineer
Bellevue, Washington
IT Systems Engineer (Contract) System One Location: Bellevue, WA (Onsite) Schedule: Full-Time, 40 hours/week Contract Position Position Summary System One is seeking an experienced IT Systems Engineer to support enterprise infrastructure operations for...
Date Posted: 07/07/2026 Recommended
-
Component Engineer, Nuclear
Bellevue, WA
Job Title: Component Engineer, Nuclear Type: Contract Compensation: $52 - $85 hourly Contractor Work Model: Remote Position Overview: We are seeking an experienced and detail-oriented Component Engineer to support component design efforts in the nuclea...
Date Posted: 05/26/2026 Recommended
-
Mechanical Engineer
Salt lake city, Utah
Job Title: Mechanical Engineer Location: Salt lake city, UT Type: Contract To Hire Compensation: $52.88 - $67.3 Work Model: Hybrid – onsite and remote Hours: 40.0 Responsibilities Lead the mechanical engineering and design execution of industrial proje...
Date Posted: 07/08/2026 Recommended