• M365 Exchange Online…

    Leidos (Reston, VA)
    …in the Washington, DC, Northern Virginia, or Maryland area. Leidos is seeking an experienced ** M365 Exchange Online Administrator ** (cloud) to join our ... candidate will have deep expertise in managing and optimizing Exchange Online environments within GCC (Government Community...+ Minimum of 5 years of hands-on experience in M365 administration. + Strong understanding of M365 … more
    Leidos (12/10/25)
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  • M365 Sr. Exchange Engineer

    CACI International (Arlington, VA)
    … Online , and Microsoft 365 * Must have strong hands-on experience working on Exchange Online * Implement M365 DLP, Purview, Compliance, and Conditional ... and support of core M365 services, including (but not limited to): * Exchange Online - including mailbox migration, EOP, and Exchange Administration *… more
    CACI International (10/16/25)
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  • Consultant, M365 Architect

    Development InfoStructure (Arlington, VA)
    …The Consultant provides design expertise across Power Platform environments, SharePoint Online structures, Teams and Exchange Online configurations, ... & Planning + Assist in the design of enterprise-level configurations for SharePoint Online , OneDrive, Teams, Exchange Online , and related Microsoft 365… more
    Development InfoStructure (12/06/25)
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  • M365 Chief Architect

    The MITRE Corporation (Mclean, VA)
    …scale: Architect and operate enterprise M365 environments (20,000+ users) across Exchange Online , SharePoint Online , Teams, OneDrive, Power Platform, ... reference architectures, guardrails; partner with Senior Manager, Digital Workplace ( M365 Platform) for execution, staffing, and budgets. . Architecture governance:… more
    The MITRE Corporation (12/04/25)
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  • Cloud Infrastructure Engineer 2

    Public Consulting Group (Richmond, VA)
    …and maintain SMTP relay paths ( M365 , hybrid, and on-prem relays). + Manage Exchange Online connectors, DKIM, DMARC, SPF, ARC, and reverse DNS alignment. + ... www.publicconsultinggroup.com . Own operational stability, security, and performance of Microsoft Exchange Online and SMTP services within Microsoft 365.… more
    Public Consulting Group (11/20/25)
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  • Lead Data Loss Prevention (DLP) Security Engineer

    CoStar Realty Information, Inc. (Arlington, VA)
    …+ Own the enterprise DLP architecture and roadmap using Microsoft Purview across Exchange Online , SharePoint Online , OneDrive, Teams, Power BI, and ... leading global provider of commercial and residential real estate information, analytics, and online marketplaces. Included in the S&P 500 Index and the NASDAQ 100,… more
    CoStar Realty Information, Inc. (11/04/25)
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