• Nuclear Mechanical Design

    System One (Bellevue, WA)
    Job Title: Senior Mechanical Design Engineer Location: Remote Pay Range: $52-$85/hour Overview: System One is seeking a highly motivated and resourceful ... Senior Mechanical Design Engineer to support...nuclear industry best practices to maintain high-quality engineering design . + Proactively identify process change/enhancement opportunities. Qualifications: +… more
    System One (11/04/25)
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  • Nuclear Maintenance Equipment…

    System One (Bellevue, WA)
    …(Remote | Long-Term Contract) System One is seeking a Nuclear Maintenance Equipment Engineer to support the design and delivery of nuclear maintenance ... Job Title: Nuclear Maintenance Equipment Engineer Type: Contract...6+ years of experience in mechanical system design and operations. * Proven experience with nuclear more
    System One (10/14/25)
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  • Nuclear Commissioning Engineer III

    System One (Bellevue, WA)
    …+ Oversee nuclear island commissioning processes to ensure testing meets design and safety criteria. + Promote continuous improvement through the application of ... Commissioning Engineer III - Contract (Remote) Employer: System One...configuration management principles. Required Qualifications + BS degree in Nuclear , Mechanical , Electrical, or related engineering discipline… more
    System One (11/11/25)
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  • Sr. Nuclear Fuel Fabrication…

    System One (Bellevue, WA)
    Job Title: Sr. Nuclear Fuel Fabrication Engineer Location: Remote, with some travel to Everett, WA Job Type: Contract, 12 - months Position Overview: We are ... seeking a highly motivated and experienced Sr. Nuclear Fuel Fabrication Engineer . This role will...plans. Key Qualifications and Skills: + Doctorate Degree in Nuclear , Mechanical , or Materials Engineering. + Minimum… more
    System One (11/02/25)
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  • Fuel Handling Mechanical Design

    System One (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...disciplines ( mechanical , instrumentation and controls, civil, and nuclear ) to specify and integrate system design more
    System One (10/07/25)
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  • Senior Mechanical Design

    System One (Bellevue, WA)
    Job Title: Senior Mechanical Design Engineer Type:...seeking a Sr. Mechanical Design Engineer to support the development of advanced nuclear ... and analysis Conduct mechanical analyses using FEA tools like ANSYS Lead design reviews and guide junior engineers and subcontractors Apply Design for… more
    System One (11/02/25)
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  • MCFR-Senior Mechanical Design

    System One (Bellevue, WA)
    Job Title: Senior Mechanical Design Engineer (2 positions) Type: Long term Contract Compensation: $56 - $95 hourly Contractor Work Model: Remote System One - ... Senior Mechanical Design Engineer (MCFR Program)...Senior Mechanical Design Engineer (MCFR Program) Location: Remote |...focuses on the design and analysis of mechanical systems-beginning with support of the non- nuclear more
    System One (10/14/25)
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  • Senior Mechanical Analysis Engineer

    System One (Bellevue, WA)
    …focused on developing the design of next generation advanced nuclear reactors. Responsibilities + Perform mechanical analyses of reactor structures, ... Job Title: Senior Mechanical Analysis Engineer Type: Contract (yearlong)...with interdisciplinary team of engineers to establish and optimize nuclear components design consistent with required functional… more
    System One (11/13/25)
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  • System Design Engineer , Fluid…

    System One (Bellevue, WA)
    Job Title: System Design Engineer , Fluid Systems Location: Bellevue, WA Type: Contract (yearlong) Compensation: $52 - $85 hourly Contractor Work Model: Remote ... to contract with a highly capable and motivated System Design Engineer to interface with suppliers. This...Analyze and allocate regulatory criteria and standards to complex mechanical design . + Support planning efforts and… more
    System One (10/14/25)
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  • Plant Design Integration Engineer

    System One (Bellevue, WA)
    Job Title: Plant Design Integration Engineer Type: Contract (yearlong) Compensation: $56 - $95 hourly Contractor Work Model: Remote System One is seeking to ... to support the integration, oversight, and coordination of nuclear island plant design with ongoing licensing...PRA to develop plans, strategies, processes, and plant level design deliverables. The Plant Integration Engineer will… more
    System One (10/21/25)
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  • Risk-Informed Design Integration…

    System One (Bellevue, WA)
    Job Title: Risk-Informed Design Integration Engineer Location: Bellevue, WA Type: 12-month Contract Compensation: $54 - $90 hourly Contractor Work Model: Onsite ... Job Title: Risk-Informed Design Integration Engineer (Contract) Overview: We are...Education: Bachelor's degree in a relevant engineering discipline (eg, nuclear , chemical, mechanical , or electrical engineering) or… more
    System One (10/07/25)
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  • Design Process Engineer

    System One (Bellevue, WA)
    …WA | $67-$110/hour | Onsite | Contract Role System One is seeking a highly motivated Design Process Engineer to support nuclear plant design engineering ... Design Process Engineer - Agency Contract...10+ years of experience. + Strong background in integrated nuclear plant design and construction execution. +… more
    System One (09/16/25)
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  • Senior Process & Piping Design

    System One (Bellevue, WA)
    MCFR Senior Process & Piping Design Engineer - Contract REMOTE $67 - $110/hour System One is seeking a Senior Process & Piping Design Engineer to support ... design solutions that advance the MCFR program toward a commercial nuclear power reactor. Responsibilities + Develop System Design Descriptions, Interface… more
    System One (09/30/25)
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  • Plant Radiological Integration Engineer

    System One (Bellevue, WA)
    …and provide technical guidance to design teams. Qualifications + BS in Nuclear , Mechanical , Electrical, or related engineering discipline. + 10+ years of ... hourly System One is seeking a Plant Radiological Integration Engineer to support our client's advanced nuclear ... nuclear reactor project. This role focuses on Nuclear Island System, Structure, and Component (SSC) design more
    System One (11/05/25)
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  • Materials Engineer

    System One (Bellevue, WA)
    …environmentally assisted fatigue, creep, etc.) + Interface with project teams ( mechanical design , testing, radiochemistry, etc.) to ensure material development ... Job Title: Materials Engineer Location: Bellevue, WA & Everett, WA Type:...) to support the engineering efforts of the advanced nuclear reactor technology. This role will be a part… more
    System One (11/07/25)
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  • Thermal Hydraulics Engineer

    System One (Bellevue, WA)
    …enhancements. + Collaborate with multidisciplinary teams to address thermal and mechanical design considerations for components, contributing to system ... Job Title: Thermal Hydraulics Engineer Location: Bellevue, WA Type: Long-term Contract Contractor...Key Qualifications and Skills: + A Bachelor's degree in Mechanical , Nuclear , or Chemical Engineering (or equivalent)… more
    System One (10/29/25)
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  • Senior Safety Methodology Engineer

    System One (Bellevue, WA)
    …background: BS (+10 years), MS (+7 years), or Ph.D. (+5 years) in nuclear , mechanical , or related engineering/science fields + Demonstrated experience with ... Job Title: Senior Safety Methodology Engineer Location: Bellevue, WA Type: Contract Compensation: $67... with our client, a leading organization in the nuclear energy sector. You will join the client's methodology… more
    System One (09/30/25)
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  • Research Scientist/ Engineer 4 - Cenpa

    University of Washington (Seattle, WA)
    …This position offers a unique opportunity to contribute to forefront research in experimental nuclear physics, in alignment with the NSAC 2023 Long Range Plan for ... Nuclear Science. The successful candidate will join a vibrant...The immediate priority of this position will be the design and construction of a state-of-the-art 5D silicon tracking… more
    University of Washington (10/30/25)
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  • Senior Control Systems Engineer

    System One (Everett, WA)
    Job Title: Senior Control Systems Engineer Location: Everett, WA Type: Contract (yearlong) Compensation: $52 - $85 hourly Contractor Work Model: Onsite (Local ... candidates only) System One is seeking a highly motivated Controls System Engineer for a long-term contract role on-site in Everett, WA. In this role you will work… more
    System One (11/11/25)
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  • Senior Engineer , Thermal Hydraulics

    System One (Bellevue, WA)
    …properties or experimental datasets Key Qualifications and Skills + PhD in Mechanical , Chemical, or Nuclear Engineering +3-5 years of related experience ... Job Title: Senior Engineer , Thermal Hydraulics Location: Bellevue, WA Type: Contract...have demonstrated experience leading or supporting CFD modeling, experimental design , data collection and analysis, and model validation for… more
    System One (11/13/25)
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