• Senior Linux Systems Administrator

    ManTech (Chantilly, VA)
    …+ Experience with domain account management, particularly via Centrify, LDAP, and Active Directory + Strong shell scripting experience and experience with ... **MANTECH seeks a motivated, mission-focused Senior Linux Systems Administrator to join...replace server hardware if necessary **Clearance Requirements:** + An active /current TS/SCI with Polygraph is required. **Physical Requirements:** +… more
    ManTech (08/30/25)
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  • Senior Systems Administrator

    Indigo IT, LLC (Washington, DC)
    …Server 2012R2 or Higher. + Proficient understanding of technology areas such as Active Directory , DHCP, DNS, Group Policy and DFS. + Fundamental understanding ... Senior Systems Administrator Washington, DC SUMMARY:...reliability and performance of the system. Required Qualifications: + Active Secret Clearance + Minimum of five (5) years… more
    Indigo IT, LLC (08/13/25)
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  • Senior Linux Administrator -Team…

    General Dynamics Information Technology (Falls Church, VA)
    …TIA Security + Certified - CompTIA - CompTIA, Red Hat Certified System Administrator (RHCSA) in Red Hat OpenStack - Redhat Certified Systems Administration RHEL 9 ... IT infrastructure, its Wide Area Network (WAN), authentication and directory services, cybersecurity, application hosting, and associated services. GECOS uses… more
    General Dynamics Information Technology (08/22/25)
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  • Senior PKI Administrator

    GovCIO (Arlington, VA)
    …IT (Systems Administration, Network Administration, Windows/Linux OS, Network Administration, Active Directory , and/or Virtualization + Familiarity with ... **Overview** GovCIO is currently hiring for a SeniorPKI Administrator with an active Secret clearance to issue and maintain a federal customer's Public Key… more
    GovCIO (09/04/25)
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  • System Administrator 2

    M. C. Dean (District Of Columbia, DC)
    …Server operating systems (eg, Windows Server 2016/2019). + Strong knowledge of Active Directory management and Group Policy administration. + Hands-on experience ... patching and vulnerability remediation. + Requires advanced knowledge of Windows active directory hierarchy and implementation. + Requires basic knowledge… more
    M. C. Dean (08/27/25)
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  • System Administrator 3

    M. C. Dean (District Of Columbia, DC)
    …(servers and workstations). + Implement and maintain sophisticated enterprise Windows Active Directory Architectures. + Perform daily operations to include ... and cybersecurity industries. Responsibilities What you'll do: The Systems Administrator 3 is responsible for the day-to-day management, maintenance,... Active Directory management, monitoring and reviewing system logs. + Configure… more
    M. C. Dean (08/27/25)
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  • System Administrator

    HarmonyTech (Washington, DC)
    …and support cloud infrastructure systems and cloud servers. + Maintain Windows Server Active Directory and Microsoft Entra ID. + Configure and manage Microsoft ... Minimum 5 years of experience as a Windows System Administrator , with mid-level and senior -level experience. +...systems and cloud servers. + Proficiency in Windows Server Active Directory and Microsoft Entra ID. +… more
    HarmonyTech (08/01/25)
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  • System Administrator 3

    M. C. Dean (Vienna, VA)
    …(servers and workstations). + Implement and maintain sophisticated enterprise Windows Active Directory Architectures. + Perform daily operations to include ... engineering, and cybersecurity industries. We are seeking a **System Administrator 3** to join our **Security and Electronic Systems... Active Directory management, monitoring and reviewing system logs. + Configure… more
    M. C. Dean (09/06/25)
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  • System Administrator 4

    M. C. Dean (District Of Columbia, DC)
    …vulnerability remediation with ATO processes + Requires advanced knowledge of Windows active directory hierarchy and implementation. + Strong oral, written and ... in electrical, engineering, and cybersecurity industries. Responsibilities As a System Administrator for our Physical Security Systems, you will be responsible for… more
    M. C. Dean (09/26/25)
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  • Systems Administrator 2 (Bluemont, VA)

    William C Brown Inc (Springfield, VA)
    …and Linux shell + Experience supporting multiple Microsoft Windows Server 2003/2008/2012 active directory domains. + Experience with the full lifecycle ... other characteristic protected by law. Description WCBinc is looking for a Sr . Systems Administrator to provide support for implementation, troubleshooting and… more
    William C Brown Inc (07/24/25)
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