• Systems Engineer SME - Exchange…

    General Dynamics Information Technology (Washington, DC)
    …experience **US Citizenship Required:** Yes **Job Description:** ** Senior Principal Systems Engineer - Exchange Messaging - Active Top Secret Required** ... to make a personal impact as a ** Senior ** **Principal Systems Engineer for Exchange Messaging ** with GDIT. We're seeking a highly skilled systems … more
    General Dynamics Information Technology (11/06/25)
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  • M365 Sr . Exchange Engineer

    CACI International (Arlington, VA)
    M365 Sr . Exchange Engineer Job Category: Information Technology Time Type: Full time Minimum Clearance Required to Start: None Employee Type: Regular ... Travel: Local * * * **The Opportunity:** As a Sr . Microsoft 365 engineer , you will be...* Provide end-to-end service support for Microsoft 365 and Exchange Online * Participate in service delivery initiatives needed… more
    CACI International (10/16/25)
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  • Sr M365 Platform Engineer

    PenFed Credit Union (Mclean, VA)
    Overview PenFed is hiring a (Hybrid) Sr . M365 Platform Engineer at our Tysons, Virginia location. The primary purpose of this job manage the enterprise Active ... + Manage the enterprise Active Directory and Microsoft 365 environments including Exchange , Azure AD sync, Active Directory Group Policy, SharePoint and Teams… more
    PenFed Credit Union (10/15/25)
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  • Sr . System Admin, IT Engineer III

    TekSynap (Washington, DC)
    …a US Citizen + Must successfully obtain a Public Trust **Overview** We are seeking a Sr . Systems Admin, IT Engineer III to join our team supporting Joint Service ... **Responsibilities & Qualifications** **RESPONSIBILITIES** + Provide senior systems administrators and support to all incident escalation tickets that are unable to… more
    TekSynap (10/16/25)
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  • Sr . Technical Account Manager

    Proofpoint (Alexandria, VA)
    … engineer , senior support engineer , IT operations management, or senior engineer role with exposure to multiple technology areas + 2+ years experience ... technical role in a fast-paced environment that demands interaction with enterprises at senior levels, as well as with technical staff within the traditional IT and… more
    Proofpoint (11/19/25)
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  • Senior Sales Engineer - Mid Market…

    Proofpoint (Washington, DC)
    …help to deliver People-Centric solutions that protect against today's cyber threats. The Senior Sales Engineer is the Technical Lead for the Proofpoint Pre-Sales ... either as a Sales/Systems Engineer , Technical Account Manager, Security Engineer or senior level product support, preferably in the cyber-security… more
    Proofpoint (10/28/25)
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  • Requirements Engineer

    General Dynamics Information Technology (Springfield, VA)
    …Yes **Job Description:** Transform technology into opportunity as a Requirements Engineer with GDIT supporting our customer activities. In this position, you ... At GDIT, people are our differentiator. As a Requirements Engineer , you will help ensure today is safe and...technical briefings, reports, and other major documents provided to senior level client personnel. + Consult with clients to… more
    General Dynamics Information Technology (10/26/25)
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