• Senior Windows Administrator

    TekSynap (Radford, VA)
    …**RESPONSIBILITIES** + Manage, maintain, deploy, troubleshoot, and support Windows Server 2019/2022 systems in a dynamic customer environment. + Plan, ... **REQUIRED QUALIFICATIONS** **Experience** + Five (5) years as a Windows Systems Administrator or Engineer, including 3 years of task automation using PowerShell. +… more
    TekSynap (10/25/25)
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  • Senior Network/Systems Administrator

    GovCIO (Arlington, VA)
    **Overview** GovCIO is currently hiring for a Senior Network/Systems Administrator with an active Secret clearance. This position will be located in Arlington, ... $112,500.00 /Yr. Submit a referral to this job (https://careers-govcio.icims.com/jobs/7140/ senior -network-systems- administrator /job?mode=apply&apply=yes&in\_iframe=1&hashed=-1834385473) **Location** _US-VA-Arlington_ **ID** _2025-7140_ **Category**… more
    GovCIO (12/03/25)
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  • Senior IT Systems Administrator

    ManTech (Chantilly, VA)
    **MANTECH** seeks a motivated, career and customer-oriented ** Senior IT Systems Administrator ** to join our team in **Chantilly, VA.** **Responsibilities include ... + Experience providing help-desk end-user support for common desktop and server issues. + Experience installing and configuring physical equipment. + Ability… more
    ManTech (12/03/25)
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  • Senior System Administrator (C)

    SimIS Inc. (Dahlgren, VA)
    …and importance of others (work and win as a team). SimIS Inc seeks a Senior System Administrator to provide combat system simulation support to the Warfare ... in LINUX operating systems + Cisco Certified Network Associate (CCNA). + CompTIA, the Server + + Per DoD Directive 8570.1M, this position requires IAT Level II or… more
    SimIS Inc. (11/06/25)
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  • Senior Sharepoint Administrator

    Deloitte (Richmond, VA)
    …supporting Windows environments + 3-5 years of experience as a SharePoint Administrator or similar role and knowledge of the following: + Hands-on experience ... Designer, Power Automate, and InfoPath. + Understanding of Active Directory, IIS, and SQL Server as they relate to SharePoint. + Exposure to Entra ID (Azure AD)… more
    Deloitte (10/28/25)
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  • Senior Storage Administrator

    TekSynap (Radford, VA)
    …Manage, maintain, deploy, troubleshoot, and support enterprise storage systems and associated server environments. + Collaborate with OS and Storage teams to support ... network communication. + Installation and configuration experience of backup SW with Windows Server 2019, Solaris 11, RedHat Enterprise Linux 7 and higher. + Three… more
    TekSynap (10/25/25)
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  • System Administrator

    Assertive Professionals (Chantilly, VA)
    System Administrator About the Organization Established in 2015,AssertiveProfessionals(AP), is anEconomically Disadvantaged Woman Owned Small Business ... with Polygraph Timeline Pipeline Description Assertive Professionalsis seeking aSystem Administrator with Polygraph supporting ourNational Security Customer in Chantilly,… more
    Assertive Professionals (10/09/25)
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  • Senior Network Administrator

    TekSynap (Radford, VA)
    …skills. **Certifications** + CompTIA Security+. + Computing Environment (CE) Certification (ie, MCSE, Server +, CCNA, RedHat, Palo, etc.) - can be waived for 30 days ... science or equivalent years of experience. **Overview** We are seeking a Senior Network Administratorto join our team supporting an ITES task order. TekSynap… more
    TekSynap (10/25/25)
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  • Senior Systems Administrator (S)

    SimIS Inc. (Dahlgren, VA)
    …position and is contingent upon award. Job Description: SimIS, Inc. seeks a Senior Systems Engineer to lead systems engineering activities for a US Navy Training ... across multiple geographic locations + Experience managing Windows and Linux server environments + Knowledge of network security, firewalls, and intrusion detection… more
    SimIS Inc. (09/22/25)
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  • SharePoint Administrator Expert (SME)…

    General Dynamics Information Technology (Fort Belvoir, VA)
    …Security+ or equivalent + Required Computing Environment Certification: MCSA Windows Server 2019, Azure Administrator Fundamentals, or equivalent + **Location** ... related experience **US Citizenship Required:** Yes **Job Description:** **SharePoint Administrator Expert (SME) - TS/SCI required** Make meaningful contributions… more
    General Dynamics Information Technology (10/29/25)
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