• Senior IT Systems

    ManTech (Chantilly, VA)
    **MANTECH** seeks a motivated, career and customer-oriented **Senior IT Systems Administrator ** to join our team in **Chantilly, VA.** **Responsibilities ... but are not limited to:** + Providing end-user support to personnel utilizing ITD IT systems . + Triaging help desk tickets for a broad range of service requests… more
    ManTech (12/03/25)
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  • IT Systems Administrator

    ManTech (Chantilly, VA)
    **MANTECH** seeks a motivated, career and customer-oriented ** IT Systems Administrator ** to join our team in **Chantilly, VA.** **Responsibilities include ... but are not limited to:** + Providing end-user support to personnel utilizing ITD IT systems . + Triaging help desk tickets for a broad range of service requests… more
    ManTech (11/19/25)
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  • Systems Administrator (SME)

    BAE Systems (Herndon, VA)
    …SME to provide Tier I & II problem identification, diagnosis, and resolution for complex IT systems , as well as technical assistance to computer system users. As ... a Systems Administrator SME, you will play a...+ Provide support for implementation, troubleshooting, and maintenance of IT systems , including day-to-day operations, monitoring, and… more
    BAE Systems (12/12/25)
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  • Systems Administrator /Tester (SME)

    BAE Systems (Herndon, VA)
    …to improve our future and protect our freedom. We are seeking an experienced Systems Administrator SME with strong Quality Assurance (QA) testing skills to ... support enterprise IT operations in a mission-critical environment. This role provides...be available based on position level and/or job specifics. ** Systems Administrator /Tester (SME)** **119483BR** EEO Career Site… more
    BAE Systems (12/19/25)
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  • IT Infrastructure and Engineering Support…

    CACI International (Sterling, VA)
    …* * **The Opportunity:** CACI has an immediate opening for an Infrastructure/ Systems Administrator , supporting a development and test environment, utilizing ... IT Infrastructure and Engineering Support Administrator Job...various operating systems and a multitude of engineering equipment. This position is… more
    CACI International (11/29/25)
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  • Systems Administrator

    General Dynamics Information Technology (Sterling, VA)
    …5 + years of related experience **US Citizenship Required:** Yes **Job Description:** SYSTEMS ADMINISTRATOR SENIOR Advance how our customers operate while you ... IT Infrastructure and Operations **Skills:** Information Technology ( IT ) Systems ,Linux,Microsoft Windows,Operating Systems (OS),Software...advance your career. Join GDIT as a Systems Administrator Senior and build an impactful… more
    General Dynamics Information Technology (12/18/25)
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  • Systems Administrator

    Leidos (Columbia, MD)
    **Description** **Leidos** has a new and exciting opportunity for a ** Systems Administrator ** in our **National Security Sector's (NSS) Cyber & Analytics ... us and make a difference in National Security!** The Systems Administrator will be responsible for: +...+ Provide support for implementation, troubleshooting and maintenance of IT systems + Provide problem identification, diagnosis… more
    Leidos (10/12/25)
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  • ITSM ServiceNow Administrator

    BAE Systems (Sterling, VA)
    **Job Description** **Join a Team that's Shaping the Future of IT Support** At BAE Systems , we're passionate about delivering innovative IT solutions that ... customers to achieve their missions. As an **ITSM ServiceNow Administrator ** , you'll play a critical role in providing..., you'll play a critical role in providing exceptional IT support to the customer. You'll be part of… more
    BAE Systems (10/30/25)
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  • Linux/Windows Systems Administrator

    COMSO, Inc (Columbia, MD)
    Linux/Windows Systems Administrator II (TS/SCI w/ Polygraph) Columbia, MD (http://maps.google.com/maps?q=Columbia+MD+USA+21046) Job Type Full-time Description ... their mission with confidence and efficiency. Our staff brings knowledgeable IT systems expertise, software development proficiency, innovative learning… more
    COMSO, Inc (11/27/25)
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  • Senior Systems Administrator

    Aston Carter (Dulles, VA)
    …and database performance. Essential Skills + 5 to 10 years of experience systems administrator + Proficiency in Microsoft Office. + Meraki Networking and ... Job Title: Senior System Administrator Job Description The role requires visiting worksites...systems . Responsibilities + Configure and maintain the networked IT infrastructure, including hardware, system software, and applications. +… more
    Aston Carter (12/17/25)
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  • Systems Administrator - TS/SCI…

    General Dynamics Information Technology (Chantilly, VA)
    …Yes **Job Description:** Transform technology into opportunity as a Systems Administrator with GDIT. A career in enterprise IT means connecting and ... innovation and play a meaningful part in improving how agencies operate. **HOW** **A SYSTEMS ADMINISTRATOR ** **WILL** **MAKE AN IMPACT** + We are seeking a… more
    General Dynamics Information Technology (12/16/25)
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  • Systems Administrator (2nd shift)

    General Dynamics Information Technology (Mclean, VA)
    …**Job Description:** General Dynamics Information Technology has an immediate opening for a Systems Administrator . The candidate is a systems ... System (MAAS). This position requires 2nd Shift work - 2:00pm - 10:00pm. **HOW A SYSTEMS ADMINISTRATOR WILL MAKE AN IMPACT:** + Work with collaborative teams to… more
    General Dynamics Information Technology (12/26/25)
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  • Systems Administrator

    SAIC (Chantilly, VA)
    **Description** SAIC is seeking a highly motivated Systems Administrator to join our team of professionals providing technical and program services to the US ... land, at sea, in air, and in space. The Systems Administrator will be part of a...Our robust portfolio of offerings includes high-end solutions in systems engineering and integration; enterprise IT , including… more
    SAIC (11/15/25)
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  • Lead Senior Systems Administrator

    ManTech (Chantilly, VA)
    **MANTECH** seeks a motivated, mission-oriented **Senior Systems Administrator ** to join our team in **Chantilly, VA.** As the Lead Senior Systems ... responsible for providing a full range of Tier 2/3 IT support services and expertise to customer activities, as...or high school diploma/GED and 13 years of relevant systems administration experience with 3 + years in a… more
    ManTech (12/19/25)
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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 ... our national security. In this SETA role, you use your expertise to perform Systems Administration for a COMSEC group. A Systems Engineering Technical Advisor… more
    KBR (12/06/25)
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  • Systems Administrator

    Synergy ECP (Columbia, MD)
    Systems Administrator Columbia, MD Description This is a full-time position requiring 1880 hours of support per year; and work is performed at a Peraton ... location. As a Systems Administrator on our team, you will...support for implementation, troubleshooting and maintenance of Information technology ( IT ) systems . You will also respond… more
    Synergy ECP (10/15/25)
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  • Junior Systems Administrator

    fusionSpan (Rockville, MD)
    …Wednesdays, and Thursdays) Overview We are looking for a sharp, technically-minded Junior Systems and Integrations Administrator to join our team. This is an ... across our ecosystem, including Slack, BambooHR, and QuickBooks. Key Responsibilities Systems & Cloud Administration + Salesforce Administration: Act as a junior… more
    fusionSpan (12/25/25)
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  • Senior Systems Administrator

    ManTech (Chantilly, VA)
    **MANTECH** seeks a motivated and skilled **Senior Systems Administrator ** to join our sustainment team in **Chantilly, VA.** In this role, you will support a ... limited to:** + Provide hands-on O&M support for enterprise systems , including break-fix resolution and routine sustainment tasks +...of a degree + 5+ years of experience in IT , O&M, sustainment, and/or break-fix support + Demonstrated experience… more
    ManTech (12/13/25)
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  • System Administrator 2

    Synergy ECP (Columbia, MD)
    …. Manages IT system infrastructure and any processes related to these systems . Provides support to IT systems including day-to-day operations, monitoring ... System Administrator 2 Columbia, MD (http://maps.google.com/maps?q=Columbia+MD+USA+21046) Job Type Full-time...+ Provide support for implementation, troubleshooting and maintenance of IT systems + Provide Tier I (Help… more
    Synergy ECP (10/22/25)
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  • Cloud Administrator

    Leidos (Ashburn, VA)
    …tasks such as provisioning, monitoring, troubleshooting, and optimizing cloud resources and systems . The Cloud Administrator must have a deep understanding and ... intrusion detection and protective security services to CBP information systems including local area networks/wide area networks (LAN/WAN), commercial Internet… more
    Leidos (11/15/25)
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