• Senior Mechanical Engineer

    Mission Support and Test Services (Mercury, NV)
    …Inc. (Jacobs), and HII Nuclear Inc. **Responsiblities** Performs duties as a facility/system engineer (Senior Mechanical Engineer ) at one of the nuclear ... Accreditation Board for Engineering and Technology (ABET) required for Civil, Mechanical and Electrical engineering degrees + Or, Calculus-based STEM bachelor's… more
    Mission Support and Test Services (11/13/25)
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  • Mechanical Engineer II

    Mission Support and Test Services (Mercury, NV)
    …Group Inc. (Jacobs), and HII Nuclear Inc. **Responsiblities** Performs duties as a facility/system engineer ( Mechanical Engineer II) at one of the nuclear or ... Accreditation Board for Engineering and Technology (ABET) required for Civil, Mechanical and Electrical engineering degrees + Or, Calculus-based STEM bachelor's… more
    Mission Support and Test Services (11/13/25)
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  • Mechanical Engineer

    Amentum (China Lake, CA)
    Amentum is seeking an experienced Mechanical Engineer with the technical expertise to implement solutions, evaluate products, and build upon an infrastructure ... the changing needs of our customers. In this role, the Mechanical Engineer will be responsible for preparing and/or maintaining operations documentation,… more
    Amentum (10/23/25)
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  • Senior Mechanical Engineer (Remote)

    Amentum (China Lake, CA)
    Amentum is seeking an experienced engineer to be a Technical Lead in a dynamic, fast-paced, and challenging research and development environment in support of one of ... a multidisciplinary subsystem base, including electronic, hydraulic, pneumatic, power, and mechanical systems. The Technical Lead will be responsible for the… more
    Amentum (10/16/25)
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  • Scorpius Systems Engineer (Multi-Level)

    Mission Support and Test Services (Mercury, NV)
    …for Subcritical Experiments (ECSE) Directorate is seeking an experienced Systems Engineer (Senior or Principal level) to support the implementation of design ... areas is required (approximately 30 miles beyond the Mercury gate). Senior Engineer : + Devises imaginative, thorough, and practical solutions requiring evaluation of… more
    Mission Support and Test Services (12/02/25)
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  • Heavy Fleet & Equipment Electrical Engineer

    Mission Support and Test Services (Mercury, NV)
    …and Critical Site Infrastructure (FCSI), is seeking to hire an Electrical Engineer II to validate physical configuration of assigned systems, maintain system ... helps secure our nation's future. **Key Responsibilities** + Perform duties as a facility/system engineer . Serve as Engineer for the NNSS Facility as an … more
    Mission Support and Test Services (12/18/25)
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  • Principal Field Engineer

    Mission Support and Test Services (Mercury, NV)
    …**Responsiblities** The Field Engineering Team is looking to hire two Principal Field Engineer 's. The Principal Field Engineer will help lead Field Engineering ... requirements for projects and systems. Perform the duties as the Project Field Engineer (PFE) on projects, and be responsible for coordinating efforts, and giving… more
    Mission Support and Test Services (12/24/25)
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  • Fire Protection CSE (Senior Engineer )

    Mission Support and Test Services (Mercury, NV)
    …and HII Nuclear Inc. **Responsiblities** MSTS is seeking a Senior Fire Protection Engineer to provide leadership in resolving fire protection issues at nuclear and ... Accreditation Board for Engineering and Technology (ABET) required for Civil, Mechanical and Electrical engineering degrees + Or, Calculus-based STEM bachelor's… more
    Mission Support and Test Services (11/13/25)
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  • Senior Engineer - Nuclear Assurance Safety…

    Mission Support and Test Services (Mercury, NV)
    …Group Inc. (Jacobs), and HII Nuclear Inc. **Responsiblities** The Senior Nuclear Engineer in Nuclear Assurance Directorate is responsible for the development of ... Safety Requirement Changes, as well as performing accident analysis calculations. The Senior Engineer will be assigned a project that they are expected to be able… more
    Mission Support and Test Services (11/13/25)
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  • Senior Principal Electrical Safety Authority…

    Mission Support and Test Services (Mercury, NV)
    …Nevada National Security Site (NNSS) is seeking an outstanding Senior Principal Electrical Engineer Engineering Programs Division as a Staff Engineer . In this ... is seeking an outstanding Senior Principal Electrical Safety Authority Having Jurisdiction (AHJ) Engineer . In this role, you will be expected to apply a range of… more
    Mission Support and Test Services (11/13/25)
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  • Systems Engineer

    Amentum (China Lake, CA)
    …customers, suppliers, subcontractors and professional associates. Amentum is seeking an experienced engineer to be a technical leader and subject matter expert in a ... multidisciplinary approach as we have electronic, hydraulic, pneumatic, power and mechanical subsystems. This program is fast paced and requires initiative,… more
    Amentum (12/28/25)
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  • Power Engineering Engineer II

    Mission Support and Test Services (Mercury, NV)
    …(Jacobs), and HII Nuclear Inc. **Responsiblities** MSTS is seeking to hire an Engineer II for the Power Engineering department. This role will provide engineering ... and operational activities for the Nevada National Security Site (NNSS). The Engineer II reports directly to the Power Engineering Manager, within the Site… more
    Mission Support and Test Services (11/25/25)
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  • Power Engineering Senior Engineer

    Mission Support and Test Services (Mercury, NV)
    …and HII Nuclear Inc. **Responsiblities** MSTS is seeking to hire a Senior Engineer for the Power Engineering department. This role will provide engineering support ... operational activities for the Nevada National Security Site (NNSS). The Senior Power Engineer will report directly to the Power Engineering Manager, within the Site… more
    Mission Support and Test Services (11/25/25)
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