• Senior System Administrator

    ManTech (Chantilly, VA)
    …+ Plan and implement activities in support of ICD 503 requirements. + Perform Windows system administrative support to include adding and removing users, ... in **Chantilly, VA** . A qualified Senior Systems Administrator will support a secure Windows -based...or related field. + 5+ years of experience in System Administration with a proven track record… more
    ManTech (06/03/25)
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  • Senior Systems Engineer - Part-time…

    NTT DATA North America (Quantico, VA)
    …an inclusive, adaptable, and forward-thinking organization, apply now. We are currently seeking a Senior Systems Engineer - Part-time 20 hours to join our team ... in Quantico, Virginia (US-VA), United States (US). **Job Summary:** The Senior Systems Engineer will design, deploy, test, certify, patch, and address… more
    NTT DATA North America (07/19/25)
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  • Senior Operating System Specialist…

    GovCIO (Richmond, VA)
    …support of multiple server operating systems , including Unix, Linux, and Windows , which includes on-site and remote administration , user support, performance ... **Overview** GovCIO is currently hiring for MULTIPLE ** Senior Operating Systems Specialist(s)** to support...and/or mentor to other Linux Administrators at various times. ** Windows server administration -** + Able to… more
    GovCIO (08/02/25)
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  • PKI Security Administrator ( Senior

    General Dynamics Information Technology (Falls Church, VA)
    …Web Service + Active Directory Certificate Services (ADCS) monitoring + IT system administration experience ( systems management, networks, firewalls) in ... an enterprise environment + Infrastructure IT ( Systems Administration , Network Administration Windows /Linux OS, Network Administration , Active… more
    General Dynamics Information Technology (08/10/25)
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  • Senior System Administrator (NETOPS)…

    Huntington Ingalls Industries (Virginia Beach, VA)
    … Administrator at our Virginia Beach, VA. location. The Senior System Administrator is responsible for the day-to-day administration , maintenance, and ... virtualization engineers. + Apply and validate DISA STIGs on Windows systems ; remediate findings in support of...support of POA&M closure. + Execute monthly patching and system updates across enclave endpoints and servers. + Monitor… more
    Huntington Ingalls Industries (07/31/25)
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  • G2 Senior Systems Administrator…

    General Dynamics Information Technology (Fairfax, VA)
    …None **Job Family:** Systems Engineering **Skills:** Microsoft Windows Server, System Administration ,Virtual Environments **Certifications:** Security+ ... **HOW OUR SENIOR SYSTEMS ADMINISTRATOR WILL MAKE AN IMPACT:** + Senior System Administrator for G2 OPS. + Responsible for the design, implementation and… more
    General Dynamics Information Technology (08/08/25)
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  • Senior Systems Administrator…

    EPAM Systems (Mclean, VA)
    …team + Passion for exploring new technologies and innovations + Active Directory + Windows Server Administration + Office 365 Administration + PowerShell ... If you are looking for a high-impact Systems engineering role with a global leader in...in your career! The project aims to integrate new systems , enhance existing solutions, and standardize workflows within the… more
    EPAM Systems (07/18/25)
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  • Senior Systems Administrator…

    General Dynamics Information Technology (Quantico, VA)
    …**Public Trust/Other Required:** None **Job Family:** Systems Administration **Skills:** Mobile Device Management (MDM),Next-Generation Network (NGN), System ... Yes **Job Description:** Transform technology into opportunity as a ** Senior Systems Administrator** with GDIT. A career...+ **Required Experience:** + 5+ years of experience with Systems Administration , general computer system ,… more
    General Dynamics Information Technology (08/09/25)
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  • Senior Systems Administrator

    Leidos (Vienna, VA)
    **Description** The National Security Sector at Leidos is seeking a ** Senior System Administrator** to join a dynamic team based in **Tysons Corner, VA** . This ... exciting opportunity allows you to apply your expertise in system administration and software programming while supporting a small team responsible for managing… more
    Leidos (07/29/25)
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  • Senior Systems Engineer

    GovCIO (Fairfax, VA)
    **Overview** GovCIO is currently hiring for a Senior Systems Engineer with an active Secret clearance to provide administration and tier 3 operational ... USD $165,000.00 /Yr. Submit a referral to this job (https://careers-govcio.icims.com/jobs/6349/ senior - systems -engineer/job?mode=apply&apply=yes&in\_iframe=1&hashed=-1834385473) **Location** _US-VA-Fairfax_ **ID** _2025-6349_ **Category** _IT… more
    GovCIO (08/02/25)
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