• Windows Systems Administrator

    ManTech (Chantilly, VA)
    …sustain and improve the organization's Windows infrastructure as part of a collaborative systems team. Your focus will span operations, security , and integration ... test, install, integrate, and maintain new or updated operating systems + Apply security and firmware patches...Requirements** + An active/current TS/SCI with Polygraph is required. ** Physical Requirements** + The person in this position needs… more
    ManTech (12/03/25)
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  • Senior Systems Administrator 10k sign…

    Leidos (Annapolis Junction, MD)
    …Parental Paid Leave, and much more. **Join us and make a difference in National** ** Security !** As a Senior Systems Administrator you will play a vital role in ... to ensure seamless operations. Your expertise will contribute to the optimization and security of our systems , making a significant impact on the organization's… more
    Leidos (11/15/25)
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  • Sr. Specialist, Systems Engineer

    L3Harris (Greenville, TX)
    …the space, air, land, sea and cyber domains in the interest of national security . Job Title: Sr. Specialist, Systems Engineering Job Code: 30652 Job Location: ... Job Schedule: 1st Shift 9/80 Job Description: The Sr. Specialist, Systems Engineer (SE) performs technical planning, system integration, verification and validation,… more
    L3Harris (11/01/25)
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  • Marine Technician/ Mechanic *Secret…

    The Metamorphosis Group (Dania Beach, FL)
    Marine Technician/ Mechanic *Secret security clearance required* Dania Beach, FL Apply Now US Citizen only US Veterans preferred Clearance: Secret or ability to ... N/A TRAVEL: Occasional Travel GENERAL DUTIES OR EXPERIENCE: Engine & Mechanical Systems : Perform routine maintenance on inboard and outboard engines (gasoline &… more
    The Metamorphosis Group (01/05/26)
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  • Principal Cyber Security Engineer

    ManTech (Chantilly, VA)
    …work alongside cyber experts to develop solutions that enhance network compliance and security posture across DoD systems . **Responsibilities include but are not ... systems + Knowledge of Windows and Linux systems , general operating system security practices, TCP/IP...+ Must have a current/active TS/SCI with CI Polygraph ** Physical Requirements:** + The person in this position must… more
    ManTech (12/13/25)
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  • Critical Infrastructure/ Security Analyst…

    ICF (Fredericksburg, VA)
    Description The Security and Resilience practice at ICF is actively recruiting for experienced Critical Infrastructure/ Security Analyst - Mission Assurance to ... of Defense's mission assurance, defense critical infrastructure, and related security and resilience programs. **Responsibilities:** Critical Infrastructure/ Security … more
    ICF (11/21/25)
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  • Cyber Security Analyst

    ManTech (Crane, IN)
    …to:** + Review and evaluate System Security Plans (SSPs), System Security Authorization Agreements (SSAAs), systems and networks diagrams, Security ... ManTech seeks a motivated, career and customer-oriented **Cyber Security Analyst** to join our team in **Crane, Indiana.** This is an onsite position. As a core… more
    ManTech (11/06/25)
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  • F-15sa Lead Systems Engineer

    The Boeing Company (Berkeley, MO)
    …growth. Find your future with us. **Boeing Defense, Space & Security ** (BDS), **F-15 International Organization** is seeking a highly skilled, motivated, ... and collaborative **F-15SA Lead Systems Engineer** (Level 4) to join Boeing in **Berkeley,...**This position requires the ability to obtain a US Security Clearance for which the US Government requires US… more
    The Boeing Company (01/09/26)
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  • Astrodynamics Engineer - Millennium Space…

    The Boeing Company (El Segundo, CA)
    …opportunity for professional growth. Find your future with us. Millennium Space Systems , A Boeing Company, delivers affordable, high-performance space systems ... or engineering discipline + 5+ years' experience in aerospace systems design, analysis, and/or operation + Experience in orbital...This position requires the ability to obtain a US Security Clearance for which the US Government requires US… more
    The Boeing Company (01/09/26)
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  • Spacecraft Harness Engineer - Millennium Space…

    The Boeing Company (El Segundo, CA)
    …opportunity for professional growth. Find your future with us. Millennium Space Systems , A Boeing Company, delivers affordable, high-performance space systems ... In this role, you will provide electrical wiring interconnect systems (EWIS) for our advanced research, development, and prototype...This position requires the ability to obtain a US Security Clearance for which the US Government requires US… more
    The Boeing Company (01/07/26)
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