• Sr. Systems Administrator

    Chenega Corporation (Fort Belvoir, VA)
    … Desktop Administrator Associate Certification required. + Secret clearance Tier 5 investigation required. Chenega Corporation is an Equal Employment Opportunity ... provide primary and backup server system administration and information assurance support . Duties and Responsibilities: + + Provide systems administration support… more
    Chenega Corporation (12/01/25)
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  • Systems Administrator

    General Dynamics Information Technology (Springfield, VA)
    …to 6:00 pm during the week and participate in on-call rotation for after-hours support .** **Responsibilities:** + Provides Tier II support of IT ... be on an engineering team that provides IT Systems Administration support to global real-time operational activities. Critical thinking and troubleshooting skills… more
    General Dynamics Information Technology (12/06/25)
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  • Microsoft 365 / Entra Identity Engineer

    Leidos (Washington, DC)
    …of M365 / Entra platform, including remediation/methodical troubleshooting of issues escalated by Tier 1 & 2 operational support teams. + Lead engineering ... in Microsoft 365 and Entra to lead the design, implementation, and support of Zero Trust Architecture initiatives. This role focuses on modern authentication,… more
    Leidos (11/06/25)
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  • Physical Security System Administrator 4

    M. C. Dean (Chantilly, VA)
    …+ Resolve complex system issues for physical security systems + Triage customer support calls, providing Tier 3 escalation as needed + Communicate with ... to address technical issues, troubleshoot problems, and develop solutions that support the overall mission of the organization. + Manage physical security… more
    M. C. Dean (10/23/25)
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  • MECM Engineer - Hybrid Work Opportunity

    General Dynamics Information Technology (Crystal City, VA)
    …Policy Objects for security compliance and configuration management.** **Provides escalation support for Tier III/IV issues. Collaborates with customers, ... Crystal City, VA facility at least 2 days a week. Additional on-site support may be required based on customer direction.** **MEANINGFUL WORK AND PERSONAL IMPACT**… more
    General Dynamics Information Technology (10/31/25)
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  • Network Engineer

    ManTech (Chantilly, VA)
    …troubleshoot complex issues; assist design of network installation configuration for new sites, support decommissioning of a site, and assist in moves, support ... for shipment that connect to network; organize and direct hardware installations and support site surveys. + Conduct training sessions to ensure all team members are… more
    ManTech (01/21/26)
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  • Unified Communications Engineer

    Arena Technical Resources, LLC (Springfield, VA)
    …rational and objective judgments based on facts, information, and company procedures. - Support Tier 2 and 3 operations by assessing severity, prioritizing ... tasks, and considering risks and alternatives. Take ownership of support issues and work towards successful resolution with customers. - Provide technical assistance… more
    Arena Technical Resources, LLC (10/29/25)
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  • Sr. System Administrator - VDI

    Leidos (Odenton, MD)
    …onboarding and standup of new enclaves and environments as needed. + Interacts with Tier III support and evaluates vendor products. + Develops and monitors ... on the customer site at Ft Meade, MD. Administrator will provide support for assigned systems supporting Joint Worldwide Intelligence Communications System (JWICS).… more
    Leidos (01/16/26)
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