• Lab Manager II

    ARSIEM (Arlington, VA)
    …is looking for a Technical Engagement Network (TEN) Lab Manager with experience in Linux Systems Administrator to support the design, development, and ... Perform large-scale configuration management and deployment across Windows, macOS, Linux /Unix, and other operating systems and virtual...Secret clearance and be able to obtain a TS /SCI clearance. Must be able to obtain DHS Suitability.… more
    ARSIEM (11/12/25)
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  • NCIS Cyber Systems Administrator…

    General Dynamics Information Technology (Quantico, VA)
    …**Type of Requisition:** Regular **Clearance Level Must Be Able to Obtain:** Top Secret /SCI **Public Trust/Other Required:** None **Job Family:** IT ... **Job Description:** Transform technology into opportunity as a **Cyber Systems Administrator - SecOps** at GDIT in...NEED TO SUCCEED (Required):** + **Security Clearance Level:** Active Top Secret clearance with SCI eligibility. +… more
    General Dynamics Information Technology (12/08/25)
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  • Systems Administrator II Generalist…

    V2X (Springfield, VA)
    …but there are also Linux distributions as well. + The Senior Systems Administrator II shall support the mid-level internal escalation tier(s) for the ... respect, responsibility, and professionalism. We are hiring a Senior Systems Administrator II Generalist - Windows Server...required to be onsite. The position requires an active Top Secret /SCI clearance and the ability to… more
    V2X (11/15/25)
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  • Dev Sec Ops Engineer

    Lockheed Martin (Herndon, VA)
    …environments and applications: \-\- Red Hat Linux \-\- AWS \- Prior Linux systems administrator experience \- Prior experience working within SAFe ... TS /SCI clearance is required for this position; Final Top Secret clearance is required to start...Experience with Chef, Ansible, Gitlab or Docker \- Windows systems administrator experience **Security Clearance Statement:** This… more
    Lockheed Martin (12/06/25)
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  • Fidelis Administrator - Active TS…

    ENS Solutions (Reston, VA)
    …Install, configure and manage operating system and application software as necessary. Support Linux & Windows systems engineering efforts in system design and ... the appliance via SSH or Console Port + Experience operating and maintaining Linux servers, including operating systems and applications, patching, and other… more
    ENS Solutions (12/27/25)
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  • Security Control Assessor - active TS /SCI…

    V2X (Springfield, VA)
    …location. The position is required to be onsite. The position requires an active Top Secret /SCI clearance and the ability to obtain and maintain a ... We are hiring a Security Control Assessor - active TS /SCI clearance to support our government customer based in...The position requires US Citizenship and an active DoD Top Secret with SCI clearance and the… more
    V2X (11/21/25)
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  • Security Control Assessor (SCA) ( TS /SCI)

    Tau Six (Chantilly, VA)
    …networking, and cybersecurity tools, techniques, and tactics. Clearance Required: US Government Top Secret / SCI Responsibilities: The Security Control Assessor ... market. We are seeking a motivated self-starter with experience in secure information systems to join a team of security professionals and help defend national… more
    Tau Six (10/22/25)
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  • OCONUS Field Engineer - TS /SCI Polygraph…

    Leidos (Chantilly, VA)
    …team environment. The ideal candidate will have prior experience as either a systems engineer or systems administrator . Prior OCONUS experience and ... **All candidates for consideration, must possess an active and in-scope TS /SCI Polygraph.** **Basic Qualifications:** + Bachelor's degree and 8+ years' experience;… more
    Leidos (11/07/25)
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  • Linux Administrator - ACAS

    CACI International (Springfield, VA)
    Linux Administrator - ACAS Job Category: Information Technology Time Type: Full time Minimum Clearance Required to Start: TS /SCI Employee Type: Regular ... the NGA mission. In this role, we're seeking a ** Linux Administrator - ACAS** who could potentially...vendor updates are received **You'll Bring These Qualifications** + Top Secret /SCI clearance (current), with the ability… more
    CACI International (11/10/25)
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  • Senior Linux Administrator

    Leidos (Fort Belvoir, VA)
    …in IT operations working with Linux servers and Virtualization + Must hold a Top Secret /SCI Clearance. + 2-3+ years of Windows Server experience. + 2-3 years ... The DTRA program at Leidos is seeking a **Senior Linux Administrator ** in **Fort Belvoir, VA** to... in a virtual environment. **Clearance: Must hold a Top Secret /SCI Clearance.** **Required Skills:** Candidate should… more
    Leidos (12/30/25)
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