• M365 Exchange Online Administrator

    Leidos (Washington, DC)
    …DC, Northern Virginia, or Maryland area. Leidos is seeking an experienced **M365 Exchange Online Administrator ** (cloud) to join our Information Technology team. ... and user productivity. + Stay current with updates and advancements in Exchange Online and related Microsoft 365 technologies, proactively implementing… more
    Leidos (12/10/25)
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  • Mail Engineer

    TekSynap (Washington, DC)
    …+ Bachelor's in Information Technology or Network Administration. + Certifications: Microsoft Exchange Server / M365 Administrator ; Security+. ... messaging environments, ensuring secure and available email operations. + Manage Microsoft Exchange Online and M365 integration. + Oversee email routing, spam… more
    TekSynap (12/03/25)
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  • Systems Administrator II Generalist Sr…

    V2X (Springfield, VA)
    …for the Senior Systems Administrator II is to extend support to both Microsoft Windows Server and Red Hat Enterprise Linux (RHEL) platforms as time and resources ... Windows Security Administrator (GCWN) certified. + Strongly desired to be Microsoft Certified: Modem Desktop Administrator Associate or Microsoft more
    V2X (11/15/25)
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  • M365 Administrator

    ManpowerGroup (Washington, DC)
    …**What's the Job?** + Own the administration, configuration, and optimization of Microsoft 365 applications including Teams, SharePoint, Exchange , OneDrive, and ... organization in the technology sector, is seeking a M365 Administrator to join their team. As a M365 ...protect data across the M365 platform, leveraging tools like Microsoft Purview and Defender. + Develop and enforce Entra… more
    ManpowerGroup (12/04/25)
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  • Cloud System Administrator - TS/SCI w/Poly

    General Dynamics Information Technology (Annapolis Junction, MD)
    …and licensing * Ensuring seamless integration, security, and optimal performance of Microsoft 365 applications such as Exchange Online, SharePoint, Teams, and ... of related experience **US Citizenship Required:** Yes **Job Description:** Cloud System Administrator Own the opportunity as a Cloud System Administrator and… more
    General Dynamics Information Technology (10/09/25)
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  • Systems Network Administrator (SNA-2)

    Leidos (Laurel, MD)
    …**Leidos** has a new and exciting opportunity for a **Systems Network Administrator ** in our **National Security Sector's (NSS) Cyber & Analytics Business Area ... difference in National Security!** **Job Summary:** The Systems Network Administrator provides support for implementation, troubleshooting and maintenance of… more
    Leidos (11/18/25)
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  • Systems Administrator

    Koniag Government Services (Washington, DC)
    …+ Manage and maintain enterprise servers and systems infrastructure + Administer Microsoft Exchange , Active Directory, and associated systems + Implement ... Management Solutions,** a Koniag Government Services company, is seeking a Systems Administrator with a Top-Secret clearance with the ability to obtain a SCI… more
    Koniag Government Services (10/01/25)
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  • Network-System Administrator II

    Global Resource Solutions (Washington, DC)
    …Skills: + Thorough knowledge of Microsoft Windows 2008 R2/2012 R2 Server, Microsoft Exchange Server 2003/2010, Microsoft Windows 7/10 operating systems ... detail orientated, and talented individual for the position of Network/System Administrator II. Job Description: Summary: The Network/System Administrator II… more
    Global Resource Solutions (10/13/25)
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  • System Administrator (Level 4)

    Kaizen Approach, Inc (Annapolis Junction, MD)
    Kaizen Approach is currently seeking a Systems Administrator to provide implementation, troubleshooting, and maintenance support for complex Information Technology ... of twenty (20) years of experience as a System Administrator (SA) on programs and contracts of similar scope,...III certification, a Computing Environment (CE) certification such as Microsoft OS or CentOS/Red Hat OS, and an ITIL… more
    Kaizen Approach, Inc (11/11/25)
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  • Systems Administrator IV - Pipeline (TS/SCI…

    COMSO, Inc (Fort Meade, MD)
    Systems Administrator IV - PIPELINE (TS/SCI w/ POLYGRAPH) FORT MEADE, MD (http://maps.google.com/maps?q=FORT+MEADE+MD+USA+20755) Description COMSO, Inc. is a ... The CE certification requirements can be fulfilled with either Microsoft OS, Cent OS/Red Hat OS CE certifications. +...Role Servers, Privileged Account Management (PAM) Services, and MS Exchange are required. + If assigned to Desktop &… more
    COMSO, Inc (12/02/25)
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  • Software Engineer/Systems Administrator

    Cinteot (Springfield, VA)
    …must be able to install, configure, troubleshoot, diagnose, and resolve problems with Microsoft Exchange , Microsoft Windows 2012 Server, and Active Directory ... Software Engineer / Systems Administrator (location: Springfield, VA) The selected individual will...PowerShell. + Utilizes enterprise management software tools such as Microsoft System Management Server and Windows Server Update Services.… more
    Cinteot (11/06/25)
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  • Window System Administrator

    ManTech (College Park, MD)
    …user provisioning and basic performance troubleshooting + Experience with Microsoft Exchange Server administration, including mailbox management, database ... **MANTECH** seeks a motivated, career and customer-oriented **Windows** **Systems Administrator ** to join our team in **College Park, Maryland** . The position is… more
    ManTech (10/14/25)
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  • Windows Systems Administrator /Principal…

    Northrop Grumman (Jessup, MD)
    …in the administration and troubleshooting of Linux Systems. + In-depth knowledge of Microsoft Active Directory, Group Policy Management, Exchange , MS SQL, SCCM, ... career. Northrop Grumman Mission Systems is seeking an experienced Windows Systems Administrator to join its Classified Solutions team in Annapolis Junction, MD. The… more
    Northrop Grumman (12/05/25)
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  • Linux Unix Systems Administrator

    Lumen (Washington, DC)
    …the world and shape the future. **The Role** As the Linux/Unix Systems Administrator , you will be responsible for managing and maintaining the Voice Core Engineering ... solutions such as public providers AWS, Google Cloud and Microsoft Azure, as well as private environments like VMWare...you encounter any job offers that request payment in exchange for employment at Lumen, they are not for… more
    Lumen (12/03/25)
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  • Tier 3 Unified Communications Administrator

    CACI International (Washington, DC)
    Tier 3 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 (10/25/25)
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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 (10/02/25)
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  • Lead Security Systems Administrator

    Lumen (Herndon, VA)
    …VA. 2900 TOWERVIEW RD **The Main Responsibilities** + Install, Maintain, and Secure Microsoft Windows 2016 Hyper-V hosts and virtual servers with various roles. + ... Group Policy, File servers (DFS), Print servers, DNS, IIS, Exchange , Database (SQL and Oracle). + Monitor & verify...in one (or more) of the following areas: Networking, Microsoft Windows Operating System, Security hardening + Self-starter with… more
    Lumen (12/10/25)
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  • Senior Content Development Administrator

    Pearson (Washington, DC)
    …to scoring situations. + Strong computer skills, including use of common Microsoft Office applications (eg Word, Excel, PowerPoint), Google tools (eg Gmail, Google ... overall project success. Attends departmental, program team, and customer meetings to exchange ideas and information, discuss issues, plan actions, review costs, and… more
    Pearson (12/03/25)
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  • M365 Sr. Exchange Engineer

    CACI International (Arlington, VA)
    …and troubleshooting complex incidents. **Responsibilities:** * Provide end-to-end service support for Microsoft 365 and Exchange Online * Participate in service ... experience * 5+ of relevant experience in Architecture and designing solutions in Exchange Online, and Microsoft 365 * Must have strong hands-on experience… more
    CACI International (10/16/25)
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  • Microsoft 365 / Entra Identity Engineer

    Leidos (Washington, DC)
    …+ Prior experience supporting an internationally-based federal agency + SC-300: Microsoft Identity and Access Administrator Associate certification or equivalent ... are seeking a senior-level engineer with deep expertise in Microsoft 365 and Entra to lead the design, implementation,...highly complex M365 services across Entra / Azure AD, Exchange Online, Teams, Intune, and Defender. + 5+ years… more
    Leidos (11/06/25)
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