• Mission Support and Test Services (North Las Vegas, NV)
    …and Test Services, LLC (MSTS) manages and operates the Nevada National Security Site (NNSS) for the US National Nuclear Security Administration (NNSA). Our MISSION ... services and by acting as environmental stewards to the Site 's Cold War legacy. Our VISION is to be...Subcritical Experiments (ECSE) Directorate is seeking an experienced Systems Engineer (Senior or Principal level) to support the implementation… more
    DirectEmployers Association (12/02/25)
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  • Mission Support and Test Services (North Las Vegas, NV)
    …National Security Site (NNSS). In this role, the I&C Senior Engineer must take a disciplined approach to evaluating existing conditions and devising upgrade ... and Test Services, LLC (MSTS) manages and operates the Nevada National Security Site (NNSS) for the US National Nuclear Security Administration (NNSA). Our MISSION… more
    DirectEmployers Association (10/08/25)
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  • Mission Support and Test Services (Mercury, NV)
    …substation construction, maintenance, and operational activities for the Nevada National Security Site (NNSS). The Senior Power Engineer will report directly to ... LLC (MSTS) manages and operates the Nevada National Security Site (NNSS) for the US National Nuclear Security Administration...Inc. **Responsiblities** MSTS is seeking to hire a Senior Engineer for the Power Engineering department. This role will… more
    DirectEmployers Association (11/25/25)
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  • Mission Support and Test Services (Mercury, NV)
    …and substation construction, maintenance, and operational activities for the Nevada National Security Site (NNSS). The Engineer II reports directly to the Power ... LLC (MSTS) manages and operates the Nevada National Security Site (NNSS) for the US National Nuclear Security Administration...Nuclear Inc. **Responsiblities** MSTS is seeking to hire an Engineer II for the Power Engineering department. This role… more
    DirectEmployers Association (11/25/25)
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  • Mission Support and Test Services (Mercury, NV)
    …and Test Services, LLC (MSTS) manages and operates the Nevada National Security Site (NNSS) for the US National Nuclear Security Administration (NNSA). Our MISSION ... services and by acting as environmental stewards to the Site 's Cold War legacy. Our VISION is to be...HII Nuclear Inc. **Responsiblities** Performs duties as a facility/system engineer (Senior Mechanical Engineer ) at one of… more
    DirectEmployers Association (09/25/25)
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  • Mission Support and Test Services (Mercury, NV)
    …and Test Services, LLC (MSTS) manages and operates the Nevada National Security Site (NNSS) for the US National Nuclear Security Administration (NNSA). Our MISSION ... services and by acting as environmental stewards to the Site 's Cold War legacy. Our VISION is to be...HII Nuclear Inc. **Responsiblities** Performs duties as a facility/system engineer (Electrical Engineer II) at one of… more
    DirectEmployers Association (09/25/25)
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  • Mission Support and Test Services (Mercury, NV)
    …and Test Services, LLC (MSTS) manages and operates the Nevada National Security Site (NNSS) for the US National Nuclear Security Administration (NNSA). Our MISSION ... services and by acting as environmental stewards to the Site 's Cold War legacy. Our VISION is to be...Inc. **Responsiblities** MSTS is seeking a Senior Fire Protection Engineer to provide leadership in resolving fire protection issues… more
    DirectEmployers Association (09/25/25)
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  • Mission Support and Test Services (Mercury, NV)
    …and Test Services, LLC (MSTS) manages and operates the Nevada National Security Site (NNSS) for the US National Nuclear Security Administration (NNSA). Our MISSION ... services and by acting as environmental stewards to the Site 's Cold War legacy. Our VISION is to be...National Security Sites (NNSS) is seeking an outstanding Staff Engineer supporting the Advanced Sources and Detectors (ASD) Project… more
    DirectEmployers Association (11/05/25)
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  • Mission Support and Test Services (Mercury, NV)
    …and Test Services, LLC (MSTS) manages and operates the Nevada National Security Site (NNSS) for the US National Nuclear Security Administration (NNSA). Our MISSION ... services and by acting as environmental stewards to the Site 's Cold War legacy. Our VISION is to be...HII Nuclear Inc. **Responsiblities** MSTS is seeking a Mechanical Engineer for a Facility/System Engineering and packaging engineering position… more
    DirectEmployers Association (10/31/25)
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  • Mission Support and Test Services (Las Vegas, NV)
    …and Test Services, LLC (MSTS) manages and operates the Nevada National Security Site (NNSS) for the US National Nuclear Security Administration (NNSA). Our MISSION ... services and by acting as environmental stewards to the Site 's Cold War legacy. Our VISION is to be...corrections, edits, and deletions. + Possess the ability to engineer new Spectrum requests in Global Master File (GMF)… more
    DirectEmployers Association (11/14/25)
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  • Mission Support and Test Services (Mercury, NV)
    …and Test Services, LLC (MSTS) manages and operates the Nevada National Security Site (NNSS) for the US National Nuclear Security Administration (NNSA). Our MISSION ... services and by acting as environmental stewards to the Site 's Cold War legacy. Our VISION is to be...(NNSS) is seeking outstanding candidates for a Distinguished Mechanical Engineer supporting the Scorpius Accelerator. The Advanced Sources and… more
    DirectEmployers Association (12/09/25)
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  • Mission Support and Test Services (Goleta, CA)
    …and Test Services, LLC (MSTS) manages and operates the Nevada National Security Site (NNSS) for the US National Nuclear Security Administration (NNSA). Our MISSION ... services and by acting as environmental stewards to the Site 's Cold War legacy. Our VISION is to be...Department in a highly competent and professional manner. + Engineer solutions in response to support requests and for… more
    DirectEmployers Association (12/09/25)
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  • Mission Support and Test Services (North Las Vegas, NV)
    …and Test Services, LLC (MSTS) manages and operates the Nevada National Security Site (NNSS) for the US National Nuclear Security Administration (NNSA). Our MISSION ... services and by acting as environmental stewards to the Site 's Cold War legacy. Our VISION is to be...documents. + Collaborate with the Asset Manager and Systems Engineer to transfer project documentation from the Nuclear Weapons… more
    DirectEmployers Association (11/05/25)
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  • Cleared Software Engineer…

    CACI International (Denver, CO)
    Cleared Software Engineer Intern - Summer 2026 Job Category: Intern/Co-op Time Type: Part time Minimum Clearance Required to Start: TS/SCI with Polygraph ... None Anticipated Posting End: 12/17/2025 **The Opportunity:** CACI is seeking a skilled Software Developer for our Summer 2026 Makalu internship program. If you are… more
    CACI International (10/08/25)
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  • Cleared Software Engineer…

    General Atomics (Durham, NC)
    …office in Durham, NC near Research Triangle Park (RTP). GA-i3 is looking for a Software Engineer to join our Federal team, shaping the future of situational ... We are an in-person and collaborative culture, which means this role will be primarily on- site at our Durham, NC office near RTP. Our hybrid policy allows for up to… more
    General Atomics (11/19/25)
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  • Systems (MS Exchange) Engineer…

    RightDirection Technology Solutions LLC (Washington, DC)
    Systems (MS Exchange) Engineer - Cleared Washington, DC (http://maps.google.com/maps?q=Washington+DC+USA+20439) Description RDTS is in need of a cleared ... of Treasury in Washington, DC This position is full-time and 100% on- site . Qualified candidate will undergo an extensive federal background/clearance check. Tasks: +… more
    RightDirection Technology Solutions LLC (11/01/25)
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  • Cleared Information Systems Security…

    SMX (Washington, DC)
    Cleared Information Systems Security Engineer (4659)at SMX(View all jobs) (https://www.smxtech.com/careers/) Washington, DC SMX is hiring a number of Information ... Systems Security Engineer to support a Law Enforcement OCIO's organization to...support across all cybersecurity stakeholders. This position is on site in Washington, DC and requires an active Top-Secret… more
    SMX (11/04/25)
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  • Cleared Data Center Mechanical Field…

    Amazon (Denver, CO)
    Description Application deadline: Dec 15, 2025 We have an immediate opening for a Field Engineer in the Denver, CO region. As an Amazon Field Engineer , you will ... provide full life-cycle support to AWS Data Centers from design inception through site improvement and maintenance. You will be the 'go to' engineering resource for… more
    Amazon (09/30/25)
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  • Cleared - Machine Learning Engineer

    Noblis (Reston, VA)
    Responsibilities **Noblis is hiring a Machine Learning Engineer in Reston, VA** As Machine Learning Engineer with our team, you will be working with our federal ... to your work with clients, you'll work with, other machine learning engineers, software developers, data scientists, SMEs, and analysts to design and develop new… more
    Noblis (12/02/25)
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  • Cleared AI/ML Engineer (Multiple…

    Noblis (Chantilly, VA)
    …+ The engineer has familiarity with industry best practices for software /hardware optimization specifically related to running ML models of GPUs. + Experience ... Responsibilities **Noblis is seeking to hire an AI/ML Engineer (Multiple Levels) with an ACTIVE Top** **Secret...you will work on teams with other data scientists, software developers, and SMEs to apply the best practices… more
    Noblis (10/08/25)
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