• Senior Systems Administrator…

    ManTech (Fairmont, WV)
    …building, securing, and troubleshooting Windows Servers from scratch and designing complex Active Directory environments. + Senior -level experience with ... Management Act (FISMA) High requirements. + Design, deploy, and maintain complex Active Directory (AD) forests, domains, trusts, and replication topologies.… more
    ManTech (11/05/25)
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  • Senior Systems Administrator

    Belcan (Cincinnati, OH)
    …building, securing, and troubleshooting Windows Servers from scratch and designing complex Active Directory environments. * Senior -level experience with ... Senior Systems Administrator Job Number: 361641 Category: -Software...(FISMA) High requirements. * Design, deploy, and maintain complex Active Directory (AD) forests, domains, trusts, and… more
    Belcan (12/07/25)
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  • Principal IT Windows Systems Engineer

    SpaceX (Redmond, WA)
    …leading and mentoring senior engineers. + Experience with Active Directory , Kerberos, and multi-platform authentication and identification environments. ... upgrade, manage, and troubleshoot) with Windows-based systems and services (ie Active Directory Certificate Services, Active Directory Federation… more
    SpaceX (12/11/25)
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  • ITES - Netcom

    TekSynap (Honolulu, HI)
    …are currently supporting roles as: **GCC** Network Senior Subject Matter Expert Active Directory Senior Subject Matter Expert Cloud Based Computing ... Senior Subject Matter Expert Virtualization Infrastructure Senior Subject Matter Expert Computer Network Defense ...of the roles will require a government clearance and active certifications. If you are contacted for an opportunity… more
    TekSynap (10/07/25)
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  • Senior Systems Engineer

    GovCIO (Fairfax, VA)
    …tier 3 operational support for servers, workstations, and applications in a Windows Active Directory environment.This position will be located in Merrifield, VA, ... **Overview** GovCIO is currently hiring for a Senior Systems Engineer with an active ...support for servers, workstations, and applications in a Windows Active Directory environment. + Provide support for… more
    GovCIO (12/03/25)
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  • Senior Enterprise Messaging Administrator

    Dentons US LLP (Denver, CO)
    …needs and industry standards. + Administer and provide robust support for Active Directory , EntraID, DNS, and Microsoft Exchange, with a specialized ... Senior Enterprise Messaging Administrator Chicago, IL, USSt. Louis,...Applications and Application Registrations. + Assist with administration of Active Directory objects including but not limited… more
    Dentons US LLP (12/13/25)
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  • NCIS Systems Administrator | Active Top…

    General Dynamics Information Technology (Quantico, VA)
    …patching in an operational environment. + Experience with the following: Domain controllers, Active Directory Federation Services (AD FS), Active ... criminal, terrorism, sabotage, espionage and subversive activities. **HOW OUR SENIOR SYSTEMS ADMINISTRATOR WILL MAKE AN IMPACT** As a...+ Create, manage, and maintain accounts and groups in Active Directory , LDAP + Experience with PowerShell… more
    General Dynamics Information Technology (11/04/25)
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  • Senior PKI / Certificate Management…

    BAE Systems (Falls Church, VA)
    …The ideal candidate has deep hands-on experience with Microsoft PKI, strong Active Directory fundamentals, and a background in automating certificate lifecycle ... Experience, & Skills** **Responsibilities Include:** + Design, implement, and support ** Active Directory Certificate Services (ADCS)** , including root and… more
    BAE Systems (12/19/25)
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  • Senior IT Engineer

    Robert Half Technology (Westfield, MA)
    …will have a strong background in systems engineering and expertise in Active Directory , Microsoft technologies, and virtualization platforms. Responsibilities: * ... Description We are looking for an experienced Senior IT Engineer to join our team in...Oversee the administration and maintenance of Active Directory , ensuring optimal performance and security.… more
    Robert Half Technology (12/03/25)
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  • Lead Senior Systems Administrator

    ManTech (Chantilly, VA)
    …optimization, and troubleshooting of our VMware virtualized environment and Active Directory infrastructure, ensuring seamless and reliable operations ... **MANTECH** seeks a motivated, mission-oriented ** Senior Systems Administrator** to join our team in...and 11 environments and Windows Server 2016/2019, to include Active Directory , Domain Controllers, DNS, GPO's, PKI,… more
    ManTech (12/19/25)
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