Senior Mechanical Engineer
Bellevue, WA
Experience: 0
Category: Other
Contractor Work Model: Remote
Brand: System One
Job ID: 349557
Date Posted: 04/20/2026
Shortcut: http://jobs.systemone.com/MOCyap
Job Title: Senior Mechanical Engineer
Location: Bellevue, WA
Type: Contract
Contractor Work Model: Remote – offsite
Hours: 40.0
Responsibilities
- Design reactor structures and components from concept through final design.
- Develop equipment and component design solutions based on engineering and project requirements.
- Perform scoping calculations and engineering analyses to support design decisions.
- Interface with engineering analysis teams and support integrated design efforts.
- Lead and participate in design reviews, evaluating technical solutions.
- Manage and coordinate supplier and subcontractor technical activities.
- Mentor junior engineers and provide technical guidance.
- Support continuous improvement and application of nuclear industry best practices.
- Bachelor’s degree in Mechanical Engineering or related field.
- 8+ years of equipment/component design experience (M.S. may count toward experience).
- Working experience with ASME Boiler & Pressure Vessel Code Section III.
- Experience with Design for Manufacturability (DFM) and Design for Assembly (DFA).
- Experience with Finite Element Analysis (FEA), preferably using ANSYS.
- Strong analytical and problem-solving skills.
- Ability to manage multiple priorities in a fast-paced environment.
- Excellent written and verbal communication skills.
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-
-
Instrumentation & Controls (I&C) Design Engineer
Bellevue, WA
I&C Design Engineer Company: System One Location: Remote Pay Rate: $69 – $115 per hour (based on experience) Job Type: Contract Duration: Long-Term Contract Position Overview System One is seeking an experienced Instrumentation & Controls (I&C) Design ...
Date Posted: 03/09/2026 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: 02/23/2026 Recommended
-
Weld Engineer
Bellevue, WA
Job Title: Weld Engineer Location: Bellevue, WA (local candidates only) Type: Contract (yearlong) typically extends on a yearly basis Compensation: $52 - $85 hourly Contractor Work Model: Onsite Paid Holidays | PTO System One is seeking a highly motiva...
Date Posted: 02/12/2026 Recommended
-
I&C Design Engineer
Bellevue, WA
Job Title: Design Engineer Type: Contract Compensation: $52 - $85 hourly Contractor Work Model: Remote Overview: We are seeking a talented and experienced Design Engineer specializing in Instrumentation and Control (I&C) for a contract opportunity with...
Date Posted: 04/06/2026 Recommended
-
Thermal Analysis Engineer
Bellevue, WA
Job Title: Thermal Analysis Engineer Type: Contract (6 months) Compensation: $52 - $85 hourly Contractor Work Model: Fully Remote System One is seeking a highly motivated Thermal Analysis Engineer for a yearlong, fully remote contract position. Tasks P...
Date Posted: 04/13/2026 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: 04/20/2026 Recommended
-
Plant Design Integration Engineer
Bellevue, WA
Job Title: Plant Design Integration Engineer Type: Contract (yearlong) typically extends on a yearly basis Compensation: $56 - $95 hourly Contractor Work Model: Fully Remote Paid Holidays | PTO System One is seeking to contract with a Plant Integration...
Date Posted: 03/06/2026 Recommended
-
Requirements Management Engineer
Bellevue, WA
Job Title: Requirements Management Engineer Location: Bellevue, WA Type: Contract Compensation: $52.00 - $85.00 per hour Contractor Work Model: Remote Hours: 40.0 hours per week Overview System One is seeking to contract with a Requirements Management ...
Date Posted: 03/31/2026 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: 03/06/2026 Recommended
-
Senior Systems Engineer - Applications
Bellevue, WA
Job Title: Senior Systems Engineer - Applications Type: Long-term Contract Contractor Work Model: Remote Responsibilities: Manage, support, and optimize enterprise business applications supporting plant operations, including EAM/ERP systems and the Dyn...
Date Posted: 04/06/2026 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
-
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: 03/23/2026 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: 03/06/2026 Recommended
-
Reactor Enclosure System (RES) Fabrication Manager
Bellevue, WA
Job Title: Reactor Enclosure System (RES) Fabrication Manager Location: Bellevue, WA Type: Contract Compensation: $56.00 - $95.00 Contractor Work Model: Remote Hours: 40.0 Overview System One is seeking to contract with a Reactor Enclosure System (RES)...
Date Posted: 03/17/2026 Recommended
-
System Design Engineer
Bellevue, WA
System One is seeking a System Design Engineer to support advanced nuclear reactor development. This role will support the Sodium Processing Systems team, focusing on system design, vendor coordination, and integration of hardware into overall plant sy...
Date Posted: 03/16/2026 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: 03/09/2026 Recommended
-
Mechanical Designer
Bellevue, WA
Job Title: Mechanical Designer Location: Bellevue, WA Type: Contract Compensation: $37.00 - $74.00 per hour Contractor Work Model: Hybrid – onsite and remote Hours: 40.0 hours/week Overview Leave placeholder text here for recruiter to input Responsibil...
Date Posted: 04/20/2026 Recommended
-
Senior Mechanical Design Engineer
Bellevue, Washington
Position Overview: System One is seeking a Senior Mechanical Design Engineer to support the Molten Chloride Fast Reactor (MCFR) program and the Molten Chloride Reactor Experiment (MCRE). This role plays a key part in designing and analyzing mechanical ...
Date Posted: 04/16/2026 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
-
Test & Commissioning Site Supervisor
Bellevue, Washington
Job Title: Test & Commissioning Site Supervisor Location: Bellevue, Washington Type: Direct Hire Compensation: $90,000 - $120,000 Contractor Work Model: Onsite – onsite Hours: 40.0 Overview Lead and coordinate the commissioning and validation activitie...
Date Posted: 04/16/2026 Recommended
-
Nuclear Commissioning Engineer III
Bellevue, Washington
Commissioning Engineer III Employer: System One Pay Rate: $56 – $95 per hour (includes PTO, paid holidays, and health insurance stipend) Long term contract Onsite: Kemmerer, Washington Position Overview System One is seeking a highly motivated Commissi...
Date Posted: 04/03/2026 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
-
Mechanical Design Engineer
Bellevue, Washington
Job Title: Mechanical Design Engineer Location: Bellevue, Washington Type: Contract Compensation: $52 - $85 hourly Contractor Work Model: Hybrid System One is seeking a Mechanical Design Engineer to support the Molten Chloride Fast Reactor (MCFR) progr...
Date Posted: 04/14/2026 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
-
Design Engineer
Tulsa, OK
System One is partnering with a local client looking for a Design Engineer. Design Engineer ESSENTIAL FUNCTIONS: Review & respond to incoming technical sales enquiries for new or modified designs. Review of technical specification, application, configu...
Date Posted: 04/10/2026 Recommended
-
Electrical Engineer
Cypress, TX
Job Title: Electrical Engineer Location: Houston, Texas Type: Direct Hire Compensation: $130,000 - $170,000 Contractor Work Model: Hybrid Hours: Monday - Friday, 8-5 Company Overview A growing engineering and consulting firm is expanding their presence...
Date Posted: 04/07/2026 Recommended
-
Manufacturing Engineer
Latrobe, PA
Job Title: Manufacturing Engineer Location: Latrobe, PA Type: Direct Hire Compensation: $75,000.00 - $85,000.00 Contractor Work Model: Onsite – onsite Hours: 40.0 Responsibilities: Provide advanced mechanical/process expertise to support manufacturing ...
Date Posted: 04/15/2026 Recommended
-
Contract Administrator
Bellevue, WA
Job Title: Contract Administrator Type: Long-term Contract Contractor Work Model: Remote Responsibilities Support increasingly complex procurement and subcontract management duties, including federal government contracting. Manage procurement activitie...
Date Posted: 04/06/2026 Recommended
-
Mechanical Design Engineer
Greensburg, Pennsylvania
Job Title: Mechanical Design Engineer Location: Greensburg, PA Type: Contingency Compensation: $0.00 Contractor Work Model: Onsite Hours: 40.0 Responsibilities Collaborate directly with tool and die machinists to learn and support tooling, mold, and ma...
Date Posted: 04/09/2026 Recommended
-
Project Engineer - Industrial/Mechanical
Richland, Washington
Job Title: Project Engineer - Industrial/Mechanical Location: Richland, Washington Type: Contract To Hire Compensation: $55.00-75.00 / hourly Contractor Work Model: Onsite Hours: Mon-Fri. 8am-5pm Project Engineer - Industrial/Mechanical In a world of p...
Date Posted: 03/26/2026 Recommended