• Fuel Handling Mechanical Design Engineer

    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 long-term contract opportunity with a remote model. In this role, you will play a crucial… more
    System One (12/16/25)
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  • Principal Safeguards & Non-Proliferation…

    System One (Bellevue, WA)
    Principal Safeguards & Non-Proliferation Engineer - Remote/Contract System One-Long term Remote Opportunity | $84-$135 /hour System One is seeking aa Principal ... Safeguards and Non-Proliferation Engineer to support the MCFR program. The role centers...is required. * Good working knowledge of molten salt reactor core design and/or molten salt chemistry is desired.… more
    System One (12/16/25)
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  • Plant Radiological Integration Engineer

    System One (Bellevue, WA)
    …$69 - $115 hourly System One is seeking a Plant Radiological Integration Engineer to support our client's advanced nuclear reactor project. This role ... focuses on Nuclear Island System, Structure, and Component (SSC) design integration with plant radiological design, analysis, and shielding requirements. The successful candidate will coordinate between design, analysis, and operations teams to ensure full… more
    System One (12/16/25)
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  • Senior Systems Engineer - Applications

    System One (Bellevue, WA)
    Job Title: Senior Systems Engineer - Applications Location: Bellevue, WA Type: Contract (yearlong) Compensation: $54 - $90 hourly Contractor Work Model: Fully Remote ... forward-thinking professionals who are interested in focusing on advanced nuclear reactor research and development and influencing change within the nuclear power… more
    System One (12/16/25)
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  • Senior Materials Testing Engineer

    System One (Everett, WA)
    Job Title: Senior Materials Testing Engineer Location: Everett, WA (local candidates only) Type: Contract (yearlong) Typically extends on a yearly basis ... PTO System One is seeking a Senior Materials Testing Engineer . This role will provide support as part of...document new knowledge related to materials performance and behavior, reactor design, and materials qualification + Assist with the… more
    System One (12/16/25)
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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 supplier integration activities...vendors developing mechanical systems and component designs for advanced reactor programs. + Coordinate reviews of thermal, seismic, structural,… more
    System One (12/16/25)
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  • Engineer IV

    General Atomics (San Diego, CA)
    …worldwide. We currently have an exciting position for a Computational Materials Engineer to support our Nuclear Technologies and Materials (NTM) division in San ... ceramic matrix composite materials subject to extreme environments like nuclear reactor cores and hypersonic flight environments. **DUTIES AND RESPONSIBILITIES:** +… more
    General Atomics (12/11/25)
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  • *Mechanical Engineer 4 (NSSS Piping…

    NuScale Power (Corvallis, OR)
    …and associated design parameters for the modular advanced light water reactor (ALWR) NSSS. Utilizing proven state-of-the-art methodologies NSSS components are ... is based on collaboration with drafters and requires the engineer to reviews models that have been developed in...college or university , is required . A professional engineer (PE) certification is preferred. + Experience: Minimum of… more
    NuScale Power (12/06/25)
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  • *Mechanical Engineer 5 (NSSS Piping…

    NuScale Power (Corvallis, OR)
    …and associated design parameters for the modular advanced light water reactor (ALWR) NSSS. Utilizing proven state-of-the-art methodologies NSSS components are ... is based on collaboration with drafters and requires the engineer to reviews models that have been developed in...License in Mechanical or Nuclear Engineering is required. Certifying Engineer experience to ASME BPVC Section III is required.… more
    NuScale Power (12/06/25)
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  • Senior Staff Engineer , Modeling

    Takeda Pharmaceuticals (Boston, MA)
    …for achieving and controlling high standards of purity and quality. The Senior Staff Engineer - Process Modeling will join a dynamic and innovative team of engineers ... & Technology Group. Join Takeda as a Senior Staff Engineer - Modeling where you will have a strong...expertise in reaction kinetics, transport phenomena, mathematical modeling, and reactor design. You will also lead and develop the… more
    Takeda Pharmaceuticals (11/27/25)
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