• Engineer Lead Test 3

    Huntington Ingalls Industries (Newport News, VA)
    …will understand adherence to customer contractual needs and requirements of Reactor Instrumentation and Control systems. Testing within technical, schedule and cost ... test plans, procedures and schedules for completing testing of Reactor Instrumentation and Control systems. Coordination of integrated testing activities.… more
    Huntington Ingalls Industries (12/28/25)
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  • Nuclear Mechanical Design Engineer

    System One (Bellevue, WA)
    …Engineer to support the conceptual and preliminary design development of various reactor core components, reactor structures, and Nuclear Island components for ... the Natrium Generation IV Reactor . This role requires extensive experience in equipment design and will report to the Core Component Design Manager. You'll be part… more
    System One (12/26/25)
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  • Lead/ Principal Nuclear Engineer

    MPR Associates (Alexandria, VA)
    …engineer to guide, challenge, and mentor our growing team in a variety of reactor analysis activities. If you're looking for an opportunity to work on a broad ... essential. + Familiarity with both light water and non-light water reactor designs. Alternatively, familiarity with fusion device thermal and radiological designs.… more
    MPR Associates (12/26/25)
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  • Nuclear Thermal Hydraulic Analyst

    System One (Bellevue, WA)
    …support methodology development, analysis, and design efforts of our client's nuclear reactor program. Reporting to the Manager, Core Thermal Hydraulics Methods & ... and related thermal-hydraulic testing + Support development of testing programs needed for reactor core & components Key Qualifications and Skills + BS, MS or Ph.D.… more
    System One (12/26/25)
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  • Primary Heat Transport System Design Engineer

    System One (Bellevue, WA)
    …the primary sodium heat transport system design as part of our client's sodium fast reactor . The PHT is analogous to the nuclear steam supply system in a light water ... reactor . In this role, you will act as a...a system design engineer for our client's advanced nuclear reactor projects or other highly technical projects. The successful… more
    System One (12/26/25)
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  • Nuclear Methods Engineer

    System One (Bellevue, WA)
    …nuclear analysis methods for design and licensing of a demonstration MCFR reactor , beginning with development and implementation of nuclear analysis capabilities and ... methods to perform neutronics analysis of a fast spectrum molten salt reactor . + Implementation nuclear analysis methodologies via Python software + Core design… more
    System One (12/26/25)
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  • Senior Safety Methods Engineer

    System One (Bellevue, WA)
    …expertise to other projects under development by our client's Sodium-cooled Fast Reactor (SFR) Program. Other engineering activities include, but are not limited to, ... nuclear field. + Knowledgeable of nuclear systems thermal-hydraulic, fuel performance, reactor dynamics, accident source term, and transient phenomena. + Experience… more
    System One (12/26/25)
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  • Underwater Bolting Technician

    System One (Lynchburg, VA)
    …Responsibilities + Support and operate specialized underwater tooling during reactor refueling and maintenance activities. + Perform bolt replacement, inspection, ... underwater tools in controlled environments strongly preferred. + Familiarity with reactor refuel cavity operations and nuclear plant maintenance activities. +… more
    System One (12/26/25)
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  • Nuclear Project Manager (I&C)

    System One (Houston, TX)
    …diverse team with various departments to advance our client's Small Modular Reactor design, fabrication and deployment. This position focuses on development scope ... Must have at least basic knowledge of Pressurized Water Reactor designs. Additional required and preferred experience as follows:...of the nuclear development environment related to NSSS and reactor design as regulated by the US Nuclear Regulator… more
    System One (12/26/25)
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  • I&C System Design Engineer

    System One (Bellevue, WA)
    …development, and integration of instrumentation and control systems for next-generation reactor technologies. The position reports to the Plant I&C Manager and ... involves collaboration with multi-disciplinary teams to design and test reactor I&C systems, prototype hardware, and control architectures. Responsibilities + Lead… more
    System One (12/26/25)
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