• 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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  • Primary Heat Transport System Design

    System One (Bellevue, WA)
    …water reactor. In this role, you will act as a system design engineer for our client's advanced nuclear reactor projects or other highly technical projects. ... Job Title: Primary Heat Transport System Design Engineer Location: Remote Type: Contract...+ Interface with design disciplines (such as mechanical , instrumentation and controls, civil, and nuclear )… more
    System One (11/25/25)
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  • Reactor Core and Component System Design

    System One (Bellevue, WA)
    Job Title: Reactor Core and Component System Design Engineer Location: Bellevue, WA Type: Long-term Contract Compensation: $69 - $115 hourly Contractor Work ... highly skilled and motivated Reactor Core and Component System Design Engineer for a long-term contract opportunity...milestones. Qualifications and Skills: + Education: + BS in Mechanical , Nuclear , System Engineering, or a related… more
    System One (12/09/25)
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  • Senior System Design Engineer

    System One (Bellevue, WA)
    Job Title: Senior System Design Engineer Compensation: $69 - $115 hourly Contractor Work Model: Remote System One is seeking a highly capable and motivated ... Senior System Design Engineer to support fluid systems and...etc.). + Provide technical direction to engineering staff on nuclear and non- nuclear design standards.… more
    System One (12/02/25)
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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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  • 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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  • 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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  • Plant Integration Engineer

    System One (Bellevue, WA)
    …(Kemmerer, WY) System One is seeking an experienced Plant Integration Engineer - Mechanical & Process Systems to support the design and integration of ... Plant Integration Engineer - Mechanical & Process Systems...of experience in nuclear or power plant design /retrofits with emphasis on mechanical /process systems. +… more
    System One (12/09/25)
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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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  • 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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  • Materials Engineer

    System One (Bellevue, WA)
    Job Title: Materials Engineer Location: Bellevue, WA (local candidates only) Type: Contract (yearlong, typically extends on a yearly basis) Compensation: $37 - $74 ... Paid holidays | PTO System One is seeking a highly motivated Materials Engineer to support the engineering efforts of the Materials Development and Qualification… more
    System One (12/02/25)
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