Mechanical Design Engineer
Bellevue, WA, United States • Posted June 17, 2026
Job Type:
Full-time
Location:
Bellevue, WA
Posted:
June 17, 2026
Category:
other-general
Application Deadline:
June 23, 2026
Role Description
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) program. This position will report to the MCFR Mechanical Design Manager and play a critical role in the mechanical analysis, scripting, and design scoping of reactor components. The role will begin with material property development for finite element analysis and grow into broader design analysis responsibilities.
You will work within a high-performing, multi-disciplinary engineering team that includes materials science and thermal-hydraulics experts to develop novel analysis methodologies and support the design of next-generation reactor hardware.
Key Responsibilities:
+ Develop material models and contribute to novel analysis methodologies within the Mechanical Design discipline
+ Perform basic siz...
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) program. This position will report to the MCFR Mechanical Design Manager and play a critical role in the mechanical analysis, scripting, and design scoping of reactor components. The role will begin with material property development for finite element analysis and grow into broader design analysis responsibilities.
You will work within a high-performing, multi-disciplinary engineering team that includes materials science and thermal-hydraulics experts to develop novel analysis methodologies and support the design of next-generation reactor hardware.
Key Responsibilities:
+ Develop material models and contribute to novel analysis methodologies within the Mechanical Design discipline
+ Perform basic siz...
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