• System One Holdings, LLC (Bellevue, WA)
    …a System Design Engineer to support the development of an advanced nuclear reactor system . This role focuses on the design, analysis, and integration of ... join a multidisciplinary engineering team working on a next-generation reactor project with complex interfacing systems . Key...a related field. 5+ years of direct experience in system design and mechanical systems engineering. Experience… more
    Upward (07/11/25)
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  • Radiant (El Segundo, CA)
    …portable, zero-emissions power source that works anywhere. We plan to test our development reactor by 2026 and if successful, it will be the first new commercial ... reactor design to achieve a fueled test in over...for life-saving applications in hospitals or disaster-relief scenarios. Fluids Systems Engineer - Heat Exchangers Radiant is seeking a… more
    Upward (07/29/25)
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  • System One Holdings, LLC (Bellevue, WA)
    …work with uncertainty quantification Perform mechanical analysis to support design of reactor core system and components Contribute to software quality assurance ... $84 - $90 hourly Contractor Work Model: Fully remote System One is seeking to contract with a senior...test data, overseeing validations tests, conducting analysis to support reactor core design, and supporting methods development and uncertainty… more
    Upward (07/01/25)
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  • Oklo (Santa Clara, CA)
    …You'll work on high-impact engineering challenges, designing structural components and mechanical systems that comprise the reactor module within our Aurora ... own the design of complex mechanical components and subsystems within the reactor module Collaborate cross-functionally with other engineering teams to define design… more
    Upward (07/19/25)
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  • Argonne National Laboratory (Lemont, IL)
    …fission for energy generation and maintained world-leading capabilities for developing innovative reactor and fuel cycle systems . Areas of in-depth expertise ... or more of the specialized area of nuclear engineering, such as reactor physics, thermal-hydraulics, fuels and materials, structural mechanics, etc. Strong skills in… more
    Upward (07/04/25)
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  • Sargent & Lundy (Charlotte, NC)
    …design, modification, and analysis of new and existing power plant controls systems , specifically digital upgrades You will work on challenging assignments that ... solving a wide variety of instrumentation & controls engineering issues, Coordinate systems design activities to ensure installation and operations will comply with… more
    Upward (07/11/25)
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  • Sargent & Lundy (Chattanooga, TN)
    …work on major process controls engineering projects in the following areas: Digital Systems - PLC, DCS, Touchscreen displays, network switches and control systems ... and Procurement Specifications for instrumentation and control components and systems . Process instrumentation replacement evaluation reports and nuclear modification… more
    Upward (07/24/25)
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  • Sargent & Lundy (Middletown, PA)
    system design including low and medium voltage distribution systems (transformers, generators, motor, relays, etc.) Effective written and verbal communication ... modification, and analysis of new and existing nuclear power plant electrical systems . You will work on interesting and challenging projects that include… more
    Upward (07/24/25)
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  • Sargent & Lundy (Wilmington, DE)
    system design including medium and low voltage distribution systems (transformers, generators, motors), equipment selection, and analytical calculations ... and analysis of new and existing power plant electrical systems You will work on challenging assignments that include...project team environment with a focus on integrated, detailed system design for new plants, or modifications or replacements… more
    Upward (07/08/25)
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  • Radiant (El Segundo, CA)
    …portable, zero-emissions power source that works anywhere. We plan to test our development reactor by 2026 and if successful, it will be the first new commercial ... reactor design to achieve a fueled test in over...and partner closely with the Power Conversion and Electrical Systems team responsible for converting mechanical energy to electrical… more
    Upward (07/05/25)
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  • Sargent & Lundy (Cary, NC)
    …electrical system design including low and medium voltage distribution systems (transformers, generators, motor, relays, etc ) Effective written and verbal ... program 10 or more years of experience in the design of electrical engineering systems for nuclear power plants 3 or more years of experience in leading an… more
    Upward (07/12/25)
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  • Sargent & Lundy (Wilmington, DE)
    …This is expanding work in the nuclear industry. You will work on major systems , equipment and plant process in the following areas: Perform consulting level work for ... Heat Exchanger Replacement (FWH/MSR/TFP) Isophase Bus Duct Transformer/Switchyard NSSS Systems Licensing Application All assignments require the preparation of… more
    Upward (07/15/25)
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  • PSEG (Hancocks Bridge, NJ)
    …Coordinates the repair and preventive maintenance of nuclear plant equipment and systems to assure compliance with the nuclear operating license, state and federal ... Mechanical, Electrical, Instrumentation & Controls. Experience within a Boiling Water Reactor (BWR) or Pressurized Water Reactor (PWR) operating plants… more
    Upward (07/29/25)
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  • VOLT (Bellevue, WA)
    …experience in one or more of the following areas: Plant or systems engineering. Design engineering. Fire Protection. Operations. Reactor Engineering. The ... like nuclear, chemical, mechanical, or electrical engineering or a Senior Reactor Operators license or equivalent. The successful candidate should demonstrate… more
    Upward (06/30/25)
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  • Serco North America (Washington, DC)
    …to support maintenance and planning for the overhaul and repair equipment and systems associated with US Navy Aircraft Carriers (CVNs). This position will be located ... relating to work on Hull, Mechanical & Electrical (HM&E) and aviation equipment and systems which interface with combat support systems , and hull support items… more
    Upward (07/12/25)
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  • Antares (Los Angeles, CA)
    …3+ years of experience in manufacturing Experience in complex mechanical system integration, designing and analyzing mechanical systems , manufacturing/ ... to ensure parts and assemblies are manufacturable and integrable, focusing on the system architecture level. As the product matures from concept to prototype and… more
    Upward (07/16/25)
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  • Antares (Los Angeles, CA)
    Reactor 's control drum mechanisms Conceptualization of bespoke actuation system mechanisms, components, linkages, and instrumentation Definition of design ... member of the Controls Engineering team, you will be Antares' expert on control systems . You will work on designing and building the systems that operate,… more
    Upward (07/05/25)
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  • Stony Brook Medicine (Stony Brook, NY)
    …with the US Army; Or 4. Must have been an enlisted gas turbine systems technician, submarine nuclear propulsion plant operator reactor control, utilities man, ... digital energy platforms and building analytics and/or performing diagnosis, repair of HVAC systems or boilers or auxiliary equipment; Or 10. Four years of full-time… more
    Upward (07/16/25)
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  • TerraPower (Bellevue, WA)
    …forward-thinking professionals who are interested in focusing on advanced nuclear reactor research and development and influencing change within the nuclear power ... business objectives *Identify, develop, and implement enhancements to tax processes, systems , and tools to improve accuracy, efficiency, and reporting capabilities… more
    Upward (07/11/25)
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  • TerraPower (Bellevue, WA)
    …forward-thinking professionals who are interested in focusing on advanced nuclear reactor research and development and influencing change within the nuclear power ... Microsoft Excel and able to quickly adapt to other Finance and Accounting systems (Oracle Cloud, Concur) *Knowledge of Oracle Cloud is preferred *Working knowledge… more
    Upward (07/15/25)
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