• Microsoft Exchange

    BOOZ, ALLEN & HAMILTON, INC. (Laurel, MD)
    Microsoft Exchange Administrator The Opportunity: Are you looking for an opportunity to combine your technical skills with big picture thinking to make an ... or engineering + Ability to design, implement, administer, and support client Microsoft email and messaging services + Ability to maintain and implement a… more
    BOOZ, ALLEN & HAMILTON, INC. (11/29/25)
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  • Microsoft Intune Administrator

    SAIC (Washington, DC)
    **Description** SAIC is looking for a Microsoft Intune Administrator to assist in designing, implementing, and supporting enterprise endpoint management using ... both Microsoft Endpoint Configuration Manager (MECM) and Microsoft ...+ Strong knowledge of Azure AD, M365 services (like Exchange Online and SharePoint), and Group Policy. + Familiarity… more
    SAIC (12/03/25)
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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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  • Senior Systems Administrator (Onsite)

    BAE Systems (Springfield, VA)
    …Build/maintain/tune Host Based Security System (HBSS) infrastructure + Build/maintain/tune Microsoft Exchange Server services infrastructure + Build ... **Job Description** As a Systems Administrator in an enterprise test organization, the incumbent...Group Policy + Experience with VMWare + Experience with Microsoft Exchange + Experience with Windows Update… more
    BAE Systems (11/19/25)
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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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  • Sr Principal Windows Systems Administrator

    Northrop Grumman (Dulles, VA)
    Microsoft cert), and 9 years of Windows Server, VMWare, Active Directory, Microsoft Exchange , and Group Policy administration in a classified environment + ... (CIDO) organization is seeking an experienced **Sr Principal Windows Systems Administrator ** to join its dynamic team of technical professionals. The qualified… more
    Northrop Grumman (10/31/25)
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  • Customer Account Administrator

    Suburban Propane (Gainesville, VA)
    **Overview** We are currently looking for a Customer Account Administrator to play a pivotal role in helping to support excellent customer service, customer ... retention and new customer acquisition. As a Customer Account Administrator , you will be responsible for performing detailed administrative and operational functions… more
    Suburban Propane (11/25/25)
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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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  • Junior Power Platform Administrator

    SAIC (Washington, DC)
    …Platform admin center, Power Apps, Power Automate, Power BI, and environments. Knowledge of Microsoft 365 services like Azure AD and Exchange is often required. ... **Description** SAIC is searching for a Power Platform Administrator to join our team in Washington DC...be responsible for the management and maintenance of our Microsoft Power Platform applications. **Key responsibilities** + Administer and… more
    SAIC (12/03/25)
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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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  • 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 (12/02/25)
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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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  • Cloud Solution Architect - CTJ - Poly

    Microsoft Corporation (Reston, VA)
    …government clearance. **Preferred Qualifications** : *Technical Certification in Cloud (eg, Microsoft 365 Certified: Administrator Expert, Azure, Amazon Web ... into actionable solutions aligned to high ROI customer outcomes. The Microsoft Federal organization was established to address the unique mission, legal/regulatory… more
    Microsoft Corporation (11/28/25)
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