• Windows Systems Administrator

    ManTech (Chantilly, VA)
    …Operations Manager (SCOM) and Access Control Service (ACS) + Experience with Microsoft Exchange , Outlook, and antivirus solutions including Symantec and McAfee ... **MANTECH** seeks a skilled and motivated **Windows Systems Administrator ** to join our team of top Information Technology and Analytic professionals in **Chantilly,… more
    ManTech (12/03/25)
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  • System Administrator

    Hoar Construction (Birmingham, AL)
    The System Administrator is responsible for managing and maintaining enterprise IT infrastructure, ensuring optimal performance, security, and compliance. This role ... + Manage cloud resources, user accounts, and security settings within Azure and Microsoft 365 environments. + Develop and maintain scripts to automate routine tasks… more
    Hoar Construction (11/22/25)
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  • Principal Windows Systems Administrator

    RTX Corporation (El Segundo, CA)
    …problems that create a safer, more secure world. **Principal System Administrator ** in infrastructure Workplace Services, collaborates with many teams to support ... : + Provide IT systems administration in a heterogeneous Microsoft Windows and Redhat Enterprise Linux environment. + Collaborate...with integration and supporting a email platform such as Exchange or SmarterMail. + Experience with Windows 11, 10… more
    RTX Corporation (11/18/25)
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  • Senior Contracts Administrator

    ANSER (Chantilly, VA)
    …of our service. Position Summary ANSER is seeking a Senior Contract Administrator to provide comprehensive acquisition and contract management support to the ... resolution. + Maintain contract files and records in the NRO's Electronic Procurement Exchange (EPX) Studio and other approved systems. + Assist in managing contract… more
    ANSER (01/06/26)
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  • Tier 2 Unified Communications Administrator

    CACI International (Washington, DC)
    Tier 2 Unified Communications Administrator Job Category: Information Technology Time Type: Full time Minimum Clearance Required to Start: TS/SCI with Polygraph ... Instant Messaging (IM), Presence, Audio/Video Streaming with some Public Branch Exchange (PBX) phone support within the enterprise. Responsibilities are based on… more
    CACI International (01/03/26)
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  • System Administrator

    Open Access Technology International, Inc. (Bloomington, MN)
    …other vendors Email - Management, configuration, maintenance, and troubleshooting of Microsoft Exchange and message hygiene gateway products Monitoring Systems ... to support all aspects of the Systems Infrastructure. The System Administrator will also support internal Development staff with installation, configuration, and… more
    Open Access Technology International, Inc. (01/01/26)
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  • Systems Administrator

    Robert Half Technology (Memphis, TN)
    Description Overview We are seeking a versatile and hands-on Systems Administrator capable of supporting a wide range of IT infrastructure needs-from Tier 1 ... fully onsite and requires a strong foundation in on‑prem systems, Microsoft technologies, virtualization, and network administration. The ideal candidate is… more
    Robert Half Technology (01/01/26)
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  • Cyber Systems Administrator (Active TS/SCI)

    Northrop Grumman (Elkridge, MD)
    …Server environments to include Active Directory, DHCP, GPO's, DNS, LDAP, MS Exchange , MECM ( Microsoft Endpoint Configuration Manager) MS SQL, and/or WSUS. ... career. We are looking for you to join our team as a **Cyber Systems Administrator ** based out of **Elkridge, MD** . _Please Note: Due to the classified nature of… more
    Northrop Grumman (01/01/26)
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  • Licensed Client Service Administrator

    Thrivent Financial (Perryville, MO)
    …related tasks, and other administrative tasks as assigned. The Licensed Client Service Administrator reports to and is employed by Kendra Troncale of SEMO Financial ... with financial associates to assist customer/member to purchase, sell, hold or exchange securities products + Verbal or written communications with prospective or… more
    Thrivent Financial (12/30/25)
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  • Systems Administrator

    SAIC (El Segundo, CA)
    …tasks and requirements + Windows desktop and server operating systems and Microsoft Exchange operations + Information Security + Video Tele-Conference (VTC) ... **Description** SAIC's Horizon 2 program is seeking a **System Administrator ** . This role provides support to the US Space Forces mission of delivering warfighter… more
    SAIC (12/25/25)
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