• Senior Systems Administrator

    Cambridge International Systems Inc (Mclean, VA)
    …and complex obstacles! Cambridge International Systems , Inc. has a full-time Senior Systems Administrator opportunity available based in McLean, VA. ... Qualified candidates for this job must possess a current DoD TS /SCI full scope w/poly security clearance. ROLE RESPONSIBILTIES + Maintains smooth operation of… more
    Cambridge International Systems Inc (06/10/25)
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  • Senior Systems Administrator

    V2X (Springfield, VA)
    …professionalism. We have a great opportunity for a Senior Systems Administrator II - Desktop Support - active TS /SCI clearance in Springfield, VA. The ... position will require US citizenship and an active DoD Top Secret /SCI clearance. The position requires the...to obtain and maintain a Counterintelligence (CI) Polygraph. The Senior Systems Administrator II -… more
    V2X (06/24/25)
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  • Senior Systems Administrator

    V2X (Springfield, VA)
    …responsibility, and professionalism. We are hiring a Senior Systems Administrator II Generalist - active TS /SCI clearance to support our government ... required to be onsite. The position requires an active Top Secret /SCI clearance and the ability to...to obtain and maintain a Counterintelligence (CI) Polygraph. The Senior Systems Administrator II supports… more
    V2X (05/17/25)
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  • G2 Senior Systems

    General Dynamics Information Technology (Fairfax, VA)
    …**US Citizenship Required:** Yes **Job Description:** Transform technology into opportunity as a ** Senior Systems Administrator ** with GDIT. A career in ... Level Must Be Able to Obtain:** Top Secret **Public Trust/Other Required:** None **Job Family:** Systems...people are our differentiators. Our work depends on a ** Senior Systems Administrator ** joining our… more
    General Dynamics Information Technology (07/11/25)
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  • G2 Directory Services Engineer / Senior

    General Dynamics Information Technology (Fairfax, VA)
    …Description:** Transform technology into an opportunity as a **Directory Services Engineer / Senior Systems Administrator ** with GDIT. A career in enterprise ... Level Must Be Able to Obtain:** Top Secret **Public Trust/Other Required:** None **Job Family:** Systems...Our work depends on a **Directory Services Engineer / Senior Systems Administrator ** joining our… more
    General Dynamics Information Technology (07/11/25)
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  • Senior Systems Administrator

    Leidos (Fort Belvoir, VA)
    **Description** Leidos is seeking a highly skilled ** Senior Systems Administrator ** to support mission-critical operations across various laboratory ... systems to address complex mission-specific challenges. The ** Senior Systems Administrator ** will work...considered in lieu of a degree. + An active TS /SCI with Poly security clearance. + At least 5… more
    Leidos (06/11/25)
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  • Senior Systems Administrator

    Leidos (Chantilly, VA)
    …Solutions Division (MDS) within the Leidos National Security Sector is seeking a skilled Senior Systems Administrator to join a new cyber security program ... and play a key role in supporting government-critical systems . You will be part of a program that...optimization. **What does Leidos need from me?** + Active Top Secret /SCI ( TS /SCI) with Polygraph… more
    Leidos (06/30/25)
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  • Senior Systems Administrator

    GovCIO (Washington, DC)
    **Overview** GovCIO is hiring for a Senior Systems Administrator (Linux and Windows) to provide on-going support for the administration of the core system ... $105,000.00 /Yr. Submit a referral to this job (https://careers-govcio.icims.com/jobs/6239/ senior - systems - administrator --%28linux-windows%29/job?mode=apply&apply=yes&in\_iframe=1&hashed=-1834385473) **Location** _US-Remote_ **ID**… more
    GovCIO (07/09/25)
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  • Senior Systems Administrator

    Integration Innovation, Inc. (i3) (Washington, DC)
    Overview i3 is seeking a Senior Systems Administrator to support the Naval Research Laboratory, Tactical Electronic Warfare Division. The TEWD's mission is ... are a mix of Unix based and Windows based systems . + Plan and document planned migrations of various...US Citizenship required Clearance Requirements: + Security Clearance Level: TS with SCI Preferred Skills: + Knowledge of cryptographic… more
    Integration Innovation, Inc. (i3) (05/08/25)
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  • Systems Administrator

    BOOZ, ALLEN & HAMILTON, INC. (Arlington, VA)
    …chn ology supporting the Department of Defense ( DoD ) ? We're looking for a senior systems administrator who spe cia lizes in networking and working within ... solutions for the Defense and Intelligence communities. As a senior systems administrator on our...interpret, and analyze te chn ical documentation + Active TS /SCI clearance; willingness to take a polygraph exam +… more
    BOOZ, ALLEN & HAMILTON, INC. (06/30/25)
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  • Systems Administrator

    BOOZ, ALLEN & HAMILTON, INC. (Washington, DC)
    …the technology supporting the Department of Defense ( DoD ) ? We're looking for a senior systems administrator who spe cia lizes in networking and working ... solutions for the Defense and Intelligence communities. As a senior systems administrator on our...Ability to author, interpret, and analyze technical documentation + TS / SCI clearance + HS diploma or GED… more
    BOOZ, ALLEN & HAMILTON, INC. (06/30/25)
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  • Systems Administrator Senior

    General Dynamics Information Technology (Fort Belvoir, VA)
    …related experience **US Citizenship Required:** Yes **Job Description:** ** Systems Administrator Senior (VMware) - TS /SCI required** Transform technology ... Requisition:** Regular **Clearance Level Must Be Able to Obtain:** Top Secret SCI + Polygraph **Public Trust/Other...into opportunity as a ** Systems Administrator Senior ** with GDIT. A career in… more
    General Dynamics Information Technology (05/27/25)
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  • DAI Systems Administrator

    CGI Technologies and Solutions, Inc. (Fort Belvoir, VA)
    **DAI Systems Administrator - Senior ** **Category:** Infrastructure/Cloud **Main location:** United States, Virginia, Fort Belvoir **Position ID:** ... Full Time **Position Description:** We are seeking an IT Systems and Network Administrator to ensure the...and resolving issues with various software. * Security Clearance: Top Secret * DoD 8570.01-M Certification: DFARS… more
    CGI Technologies and Solutions, Inc. (05/22/25)
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  • Senior Systems Administrator

    General Dynamics Information Technology (Fort Belvoir, VA)
    …RQ193858 **Type of Requisition:** Regular **Clearance Level Must Be Able to Obtain:** Top Secret SCI + Polygraph **Public Trust/Other Required:** None **Job ... (GDIT) is seeking an IT Engineer with Microsoft Enterprise Systems Administrator Advisor experience to join our...training, or work/military experience. + 3+ years of related systems administration experience + TS /SCI with Polygraph… more
    General Dynamics Information Technology (05/01/25)
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  • Senior System Administrator

    ManTech (Chantilly, VA)
    Administrator ;** to join our team in **Chantilly, VA** . A qualified Senior Systems Administrator will support a secure Windows-based Information System ... installation, operation, and maintenance of all current and future Information Systems . Duties and responsibilities involve the support and administration of Windows… more
    ManTech (06/03/25)
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  • Juniper Network Administrator - TS

    Three Saints Bay (Washington, DC)
    …application problems. + Perform any other related duties as assigned by the Senior Systems Administrator , Technology or other appropriate administrator ... **Juniper Network Administrator - TS /SCI Required (4790)** Location **Washington, DC**...Engineer - TS /SCI Required** with an active Top Secret clearance to join our Team!… more
    Three Saints Bay (06/19/25)
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  • Senior Windows Systems

    SAIC (Chantilly, VA)
    **Description** SAIC is looking for an ambitious Senior Level System Administrator /VMWare SME like you! Candidates will join a fast-paced and growing team of ... and participate in a growing ever-changing mission. Apply today! **Qualifications** + Active TS /SCI with Poly + 14 years of relevant IT experience + Bachelor's… more
    SAIC (06/03/25)
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  • Systems Administrator

    Lockheed Martin (Springfield, VA)
    …be able to fully utilize modern HPC systems \. We are seeking a senior level Systems Administrator with Linux and Software Configuration Management ... management, build automation and release engineering\. This is a Systems Administrator role that manages Linux server...to obtain and maintain a security clearance at the Top Secret /SCI level with a poly\. Requires… more
    Lockheed Martin (07/12/25)
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  • Sr Principal Windows Systems

    Northrop Grumman (Dulles, VA)
    …Chief Information and Digital Office (CIDO) organization is seeking a highly experienced ** Senior Principal Windows Systems Administrator ** to join its ... our employees have incredible opportunities to work on revolutionary systems that impact people's lives around the world today,...and permissions + Candidates must have a current DOD ** Top ** ** Secret /SCI** level security clearance (at a… more
    Northrop Grumman (07/11/25)
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  • Windows System Administrator

    General Dynamics Information Technology (Fort Belvoir, VA)
    …**US Citizenship Required:** Yes **Job Description:** Transform technology into opportunity as a Systems Administrator Senior with GDIT. A career in ... Level Must Be Able to Obtain:** Top Secret /SCI **Public Trust/Other Required:** None **Job Family:** Systems...operate. At GDIT, people are our differentiator. As a Systems Administrator Senior you will… more
    General Dynamics Information Technology (07/09/25)
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