• Systems Administrator / Top

    Lockheed Martin (Arlington, VA)
    **Description:** You will be the Systems Administrator for the Advanced Concepts Lab \(ACL\) - a cutting edge team within Lockheed Martin's Advanced Technology ... scientific disciplines\. What You Will Be Doing: As the Systems Administrator you will be responsible for...special access\. The selected candidate must possess an active Top Secret clearance to start\. \#lmatl **Basic… more
    Lockheed Martin (10/22/25)
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  • G2 SharePoint Systems Administrator

    General Dynamics Information Technology (Fairfax, VA)
    …/ Systems Administrator ** must have: + **Security Clearance Level:** Active Top Secret clearance. (A Secret clearance with completed T5 Investigation ... **Type of Requisition:** Regular **Clearance Level Must Be Able to Obtain:** Top Secret **Public Trust/Other Required:** None **Job Family:** IT Infrastructure… more
    General Dynamics Information Technology (01/05/26)
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  • G2 Directory Services Engineer / Senior…

    General Dynamics Information Technology (Fairfax, VA)
    Systems Administrator ** must have: + **Security Clearance Level:** Active Top Secret clearance. (A Secret clearance with completed T5 Investigation ... Requisition:** Regular **Clearance Level Must Be Able to Obtain:** Top Secret **Public Trust/Other Required:** None **Job...into opportunity as a **Directory Services Engineer / Senior Systems Administrator ** at GDIT. Shape what's next… more
    General Dynamics Information Technology (01/05/26)
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  • NCIS Systems Administrator | Active…

    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 ... Yes **Job Description:** Transform technology into opportunity as a ** Systems Administrator ** at GDIT. Shape what's next...YOU'LL NEED TO SUCCEED** + **Security Clearance Level:** Active Top Secret clearance (Must be TS/SCI eligible)… more
    General Dynamics Information Technology (01/05/26)
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  • Cloud Administrator ( Top

    Tetrad Digital Integrity LLC (Ashburn, VA)
    …years of experience and cyber certifications may be considered in lieu of degree. + Top Secret clearance with SCI eligibility + 5-7 years' experience in a Cloud ... this digital age. We are looking for a Cloud Administrator to join our team in Ashburn, VA to...Federal agency in protection of our various borders. A top - secret clearance with SCI eligibility will be… more
    Tetrad Digital Integrity LLC (11/09/25)
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  • Systems Administrator II Generalist…

    V2X (Springfield, VA)
    …with integrity, respect, responsibility, and professionalism. We are hiring a Senior Systems Administrator II Generalist - Windows Server - active TS/SCI ... required to be onsite. The position requires an active Top Secret /SCI clearance and the ability to...obtain and maintain a Counterintelligence (CI) Polygraph. The Senior Systems Administrator II shall support the Information… more
    V2X (11/15/25)
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  • Systems Administrator

    General Dynamics Information Technology (Sterling, VA)
    …**Type of Requisition:** Regular **Clearance Level Must Be Able to Obtain:** Top Secret **Public Trust/Other Required:** None **Job Family:** IT Infrastructure ... of related experience **US Citizenship Required:** Yes **Job Description:** SYSTEMS ADMINISTRATOR SENIOR Advance how our customers... Secret with the ability to obtain a Top Secret + US citizenship required **Skills… more
    General Dynamics Information Technology (12/18/25)
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  • Senior Systems Administrator

    UIC Government Services and the Bowhead Family of Companies (Arlington, VA)
    **Overview** SENIOR SYSTEMS ADMINISTRATOR (NAUT): Bowhead seeks a Senior Systems Administrator to support our customer on the Nautical contract in the ... tools + Configure and manage virtual machines, containers, storage systems , and networking components in secure cloud environments +...be able to maintain a security clearance at the Top Secret level with SCI eligibility and… more
    UIC Government Services and the Bowhead Family of Companies (01/06/26)
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  • Systems Administrator

    Amentum (Warrenton, VA)
    …Security, & Intel space? If so, look no further. Amentum is seeking a ** Systems Administrator ** to join our team of passionate individuals in **Warrenton, VA** ... is to support, operate, and maintain the Distributed Continuity Integrated Network - Top Secret Enterprise Services (DCIN-TS ES) which is a DoD-provided, TS/SCI,… more
    Amentum (12/10/25)
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  • Junior Systems Administrator

    Amentum (Mclean, VA)
    …and support of computer systems and networks. **Must have an Active Top Secret /SCI US Government clearance. Note: US Citizenship is required to maintain ... **Amentum** is looking for a **Junior Systems Administrator ** to join our team...a Top Secret /SCI clearance.** **Responsibilities:** + Installing and… more
    Amentum (01/01/26)
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  • Senior Systems Administrator

    The Boeing Company (Herndon, VA)
    …(IDT&S) organization Specialized Infrastructure Operations group is currently seeking a **Senior Systems Administrator ** to join the team in **Herndon, VA** . ... Security+ Certification + 5+ years of experience as a systems administrator + 5+ years of experience...eligibility. **Security Clearance** This position requires an active US Top Secret /SCI Security Clearance (US Citizenship Required).… more
    The Boeing Company (12/25/25)
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  • Pr./System Admin - Shift Work ( Top

    Northrop Grumman (Chantilly, VA)
    RELOCATION ASSISTANCE: Relocation assistance may be available CLEARANCE TYPE: Top Secret TRAVEL: No **Description** At Northrop Grumman, our employees have ... **Must have US Citizenship with a current or active Top Secret level clearance and the ability...Level 2 certification** **Preferred Qualifications:** + Red Hat Certified Systems Administrator (RHCSA) certification + Experience with… more
    Northrop Grumman (11/25/25)
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  • Linux Systems Administrator

    Parsons Corporation (Centreville, VA)
    …talent and redefine what's possible. **Job Description:** Are you a skilled **Linux Systems Administrator ** looking to work on mission-critical systems in ... a dynamic environment? Parsons is seeking a mid-level Linux Systems Administrator to support Linux-based workstations and servers in both physical and virtual… more
    Parsons Corporation (12/20/25)
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  • Linux Systems Administrator - TS/SCI…

    Parsons Corporation (Centreville, VA)
    …and redefine what's possible. **Job Description:** Are you a skilled **Linux Systems Administrator ** looking for an opportunity to work on mission-critical ... systems ? Parsons is seeking a mid-level Linux Systems Administrator to support both Linux-based workstations and servers in physical and virtual… more
    Parsons Corporation (12/20/25)
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  • Systems Administrator (2nd shift),…

    General Dynamics Information Technology (Mclean, VA)
    …RQ212080 **Type of Requisition:** Regular **Clearance Level Must Be Able to Obtain:** Top Secret SCI + Polygraph **Public Trust/Other Required:** None **Job ... Description:** General Dynamics Information Technology has an immediate opening for a Systems Administrator . The candidate is a systems administrator more
    General Dynamics Information Technology (01/05/26)
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  • Systems Administrator III

    Noblis (Chantilly, VA)
    Responsibilities As a Systems Administrator , you will be responsible for installing, configuring, and maintaining operating system workstations and servers, ... including web servers. You will support the multi-enclave environment (Unclassified, Secret , and Top Secret /SCI) that enables users to collaboratively… more
    Noblis (12/30/25)
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  • Systems Administrator - COMSEC

    KBR (Chantilly, VA)
    Title: Systems Administrator - COMSEC Belong. Connect. Grow. with KBR! KBR's National Security Solutions team provides high-end engineering and advanced ... this SETA role, you use your expertise to perform Systems Administration for a COMSEC group. A Systems...Standard 40 hours per week. Qualifications: Required: + Clearance: Top Secret SCI with Polygraph. + Experience:… more
    KBR (12/06/25)
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  • Senior Systems Administrator

    Chenega Corporation (Arlington, VA)
    **Req ID:** 38512 **Summary** **Senior Systems Administrator ** **Arlington, VA** Are you ready to enhance your skills and build your career in a rapidly evolving ... of our nation. SecuriGence is seeking a talented **Senior Systems Administrator ** to help contribute to our...DOD IAT Level II Certification is required. + DOD Top Secret clearance w/ SCI eligibility. **Knowledge,… more
    Chenega Corporation (12/10/25)
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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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  • Lead Windows Systems Administrator

    General Dynamics Information Technology (Chantilly, VA)
    …PRX25822 **Type of Requisition:** Regular **Clearance Level Must Be Able to Obtain:** Top Secret SCI + Polygraph **Public Trust/Other Required:** None **Job ... of related experience **US Citizenship Required:** Yes **Job Description:** Lead Windows Systems Administrator (SME) We are seeking an accomplished Lead Windows… more
    General Dynamics Information Technology (12/29/25)
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