• 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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  • 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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  • M365 Systems Administrator

    SAIC (Washington, DC)
    …setting up and maintaining user accounts, ensuring system enhancements, and supporting Microsoft Exchange in a highly secure, classified environment. **Key ... currently seeking a dedicated and meticulous **Office 365 System Administrator ** to join our team in Washington DC The...permissions and access controls. + Provide end-to-end support for Microsoft Exchange , ensuring smooth and secure email… more
    SAIC (11/21/25)
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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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  • Senior High Performance Computing (HPC) Systems…

    BAE Systems (Annapolis Junction, MD)
    …SAN storage. + Troubleshoot PXE and DHCP boot process + Perform Microsoft Exchange Policy management, mailbox management, enterprise-leve, multi-site design and ... Microsoft Windows Operating System (including Group Policy management) + Microsoft Exchange policy management, mailbox management, enterprise-level multi-site… more
    BAE Systems (09/09/25)
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  • System Administrator

    CACI International (Annapolis Junction, MD)
    System Administrator Job Category: Information Technology Time Type: Full time Minimum Clearance Required to Start: TS/SCI with Polygraph Employee Type: Regular ... highest standards of service and reliability. We're looking for a skilled System Administrator to join our team and help maintain, troubleshoot, and optimize a wide… more
    CACI International (10/30/25)
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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 III - Pipeline…

    COMSO, Inc (Fort Meade, MD)
    Systems Administrator III - PIPELINE (TS/SCI w/ POLYGRAPH) Fort Meade, MD (http://maps.google.com/maps?q=Fort+Meade+MD+USA+78251) 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 (11/21/25)
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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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  • Senior Sharepoint Administrator

    Deloitte (Baltimore, MD)
    …(on-premises to SharePoint Online or version upgrades) is a plus. + Familiarity with Microsoft 365 services (Teams, OneDrive, Exchange Online) is a plus. + ... migrations and system upgrades to maintain environment on current Microsoft stack + Serves as a subject matter expert...environments + 3-5 years of experience as a SharePoint Administrator or similar role and knowledge of the following:… more
    Deloitte (10/28/25)
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  • 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 (11/26/25)
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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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  • Linux Unix Systems Administrator

    Lumen (Annapolis, MD)
    …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 (11/22/25)
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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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  • Senior Content Development Administrator

    Pearson (Annapolis, MD)
    …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 (11/17/25)
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  • Microsoft Solutions Consultant - M365

    SHI (Annapolis, MD)
    …the pre-sales motions of the Microsoft Digital Innovation Group around Microsoft 365, including SharePoint, Exchange , Teams, OneDrive, Viva, and associated ... certification required within first 180 days of SHI employment** + Microsoft Certified: Messaging Administrator Associate, OR + Microsoft Certified: Teams … more
    SHI (09/24/25)
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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 Infrastructure Engineer 2

    Public Consulting Group (Annapolis, MD)
    …visit www.publicconsultinggroup.com . Own operational stability, security, and performance of Microsoft Exchange Online and SMTP services within Microsoft ... Operation Engineer** **Role Summary** Own operational stability, security, and performance of Microsoft Exchange Online and SMTP services within Microsoft more
    Public Consulting Group (11/20/25)
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