• Mission Support Generalist

    Patriot Group International, Inc (Chantilly, VA)
    Mission Support Generalist Position Type: Full-Time, Exempt Work...to customers within area of expertise + Serve as a subject matter expert ( SME ) ... and intelligence perspective. We are looking to hire a Mission Support Generalist to join our team...to complex issues + Capability to develop and deliver subject matter expertise in assigned support… more
    Patriot Group International, Inc (12/15/25)
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  • Director, Environmental, Safety, and Health (ES&H)

    Mission Support and Test Services (North Las Vegas, NV)
    **Job Description** Mission Support and Test Services, LLC...mission activities. + Serve as the Senior ES&H Subject Matter Expert across the ... solutions. This position reports to the Senior Director of Mission Assurance for Mission Support ...Certified Health Physicist or equivalent credential preferred. + Advanced, expert -level knowledge of 10 CFR 851, 10 CFR 850,… more
    Mission Support and Test Services (01/16/26)
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  • Senior Diagnostic Scientist

    Mission Support and Test Services (Mercury, NV)
    **Job Description** Mission Support and Test Services, LLC...to increase data fidelity. + Serve as a technical subject matter expert and mentor ... a part of a national security mission that conducts research and development? Mission Support and Test Services, LLC (MSTS) is seeking a full-time Senior… more
    Mission Support and Test Services (12/16/25)
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  • Senior/Principal/Senior Principal Scientist…

    Mission Support and Test Services (North Las Vegas, NV)
    …execs/stakeholders; builds collaborations (labs, universities, vendors). **Desired** + PhD and recognized subject matter expert with 12+ years (or equivalent ... **Job Description** Mission Support and Test Services, LLC...sources with authoritative contributions adopted in operations. + Recognized SME (fellowships/committee leadership/standard bodies), patents or seminal publications impacting… more
    Mission Support and Test Services (11/27/25)
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  • NDSE Diagnostics Scientist (Senior Scientist)

    Mission Support and Test Services (Mercury, NV)
    **Job Description** Mission Support and Test Services, LLC (MSTS) manages and operates the Nevada National Security Site (NNSS) for the US National Nuclear ... tritium operations associated with ZEUS DPF experiments. + Support radiation detection aspects for NDSE mission ....for this position will be 4/10's, Monday - Thursday ( subject to change). Travel, as needed, to support… more
    Mission Support and Test Services (11/13/25)
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  • Senior Distinguished Member of the Technical…

    Mission Support and Test Services (Mercury, NV)
    …aspects and exhaustive at all levels, and are cross-disciplinary. + Serve as the subject matter expert and national technical authority on all aspects ... **Job Description** Mission Support and Test Services, LLC...State Pulsed Power Physics will serve as a national expert , providing ultimate technical authority, strategic guidance, and visionary… more
    Mission Support and Test Services (12/09/25)
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  • Principal Field Engineer

    Mission Support and Test Services (Mercury, NV)
    **Job Description** Mission Support and Test Services, LLC...crews and craft supervision. + May serve as internal subject matter expert with given ... processes and deliverables comply with laws, codes, orders, and Mission Support and Test Services (MSTS) policies...that will produce effective outcomes. + Serve as an expert advisor to other project personnel, technical staff and… more
    Mission Support and Test Services (12/24/25)
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  • Manager II -Diagnostic Engineering

    Mission Support and Test Services (Livermore, CA)
    …oversee the Production Engineering and Diagnostic Field Services groups. + Be the Subject Matter Expert for the Stockpile Experimentation and Operations ... **Job Description** Mission Support and Test Services, LLC...+ Work schedule will be 4/10s Monday through Thursday ( subject to change). + Pre-placement physical examination, which includes… more
    Mission Support and Test Services (01/16/26)
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  • Principal Engineer Architect

    Mission Support and Test Services (North Las Vegas, NV)
    **Job Description** Mission Support and Test Services, LLC (MSTS)...will be a subject matter expert in their field and provide support to ... for the US National Nuclear Security Administration (NNSA). Our MISSION is to help ensure the security of the...orders, and MSTS policies and procedures. + Serve as subject matter expert for questions… more
    Mission Support and Test Services (12/05/25)
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  • Senior Nuclear Engineer - NDSE

    Mission Support and Test Services (North Las Vegas, NV)
    **Job Description** Mission Support and Test Services, LLC...reports, and technical proposals. + Serves as an internal subject matter expert and is ... for the US National Nuclear Security Administration (NNSA). Our MISSION is to help ensure the security of the...for this position will be 4/10's, Monday - Thursday ( subject to change). Travel, as needed, to support… more
    Mission Support and Test Services (11/13/25)
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