• Senior Offensive Security Engineer

    CoStar Realty Information, Inc. (Arlington, VA)
    …tools + Experience with C2 Frameworks like Cobalt Strike, Sliver, and Mythic + Windows Active Directory exploitation tools and techniques + Knowledge of ... engineers to cover penetration testing of all critical infrastructure (ie CI/CD systems , Active Directory ) **Basic Qualifications** + Bachelor's Degree… more
    CoStar Realty Information, Inc. (05/23/25)
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  • System Administrator 3

    M. C. Dean (Vienna, VA)
    … Windows patching and vulnerability remediation. + Demonstrated advanced knowledge of Windows active directory hierarchy and implementation. + Basic ... completed through ticketing system . + Resolve complex system issues for physical security systems and...Resolve complex system issues for physical security systems and networks + Strong verbal and written communication… more
    M. C. Dean (06/09/25)
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  • Physical Security Engineer 4

    M. C. Dean (Chantilly, VA)
    …patching and vulnerability remediation with ATO processes + Requires advanced knowledge of Windows active directory hierarchy and implementation. + Strong ... Documents, Requirements Specifications, and Interface Control Documents + Perform complex system troubleshooting for ACS/IDS/CCTV systems + Configuration and… more
    M. C. Dean (06/17/25)
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  • Database Administrator 4

    M. C. Dean (Chantilly, VA)
    …, and **Authorization to Operate (ATO)** processes. + Advanced understanding of ** Windows Active Directory ** hierarchy and implementation. + Hands-on ... data storage and retrieval. **Performance Monitoring & Optimization:** + Analyze database system activity and performance of physical security systems , providing… more
    M. C. Dean (05/15/25)
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  • Systems Administrator

    ManTech (Chantilly, VA)
    …3+ years of experience in the Information Technology field including Windows workstations, Windows servers, Active Directory , and Exchange + 2+ years of ... in **Chantilly, VA** . The position is **onsite** The System Administrator (SA) is an instrumental part of a...part of a small, highly technical team providing WAN/LAN systems integration and support of a virtualized Windows… more
    ManTech (06/12/25)
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  • Technical Support Analyst, Staff

    Acclaim Technical Services (Mclean, VA)
    …and standard business applications used within a business environment + Knowledge of Windows Active Directory + Knowledge of multiple desktop programs, ... and updating records and tracking databases + Answering questions regarding system procedures, online transactions, systems status, and downtime procedures… more
    Acclaim Technical Services (04/19/25)
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  • Enterprise IT Support Officer - Dedicated Support

    ManTech (Mclean, VA)
    … system /application access, and telecommunications systems . + Knowledge of Windows Active Directory , multiple desktop programs, configuration and ... + Deliver remote and onsite desktop support using secure tools for system repair, configuration, and optimization. + Maintain and update service records, ticketing… more
    ManTech (06/15/25)
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  • Enterprise IT Support Officer - Location Support…

    ManTech (Mclean, VA)
    … system /application access, and telecommunications systems . + Knowledge of Windows Active Directory , multiple desktop programs, configuration and ... and system repair using remote tools. + Answering questions regarding system procedures, online transactions, systems status, and downtime procedures. +… more
    ManTech (06/05/25)
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  • Senior Systems Administrator

    NVR (Reston, VA)
    …Tier 2/3 customer support for NVR's Windows Server environment, including Windows Server (2016/2019/2022), Active Directory , DNS, DHCP, certificate ... systems in both cloud and on-premises environments. + Experience managing Active Directory domain and infrastructure, including DNS, DHCP, Group Policy, and… more
    NVR (06/25/25)
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  • IT Onsite Field Technician

    Reynolds & Reynolds (Fairfax, VA)
    …apply today!PREFERRED QUALIFICATIONS: - Experience with ticketing system (s), Windows Active Directory , desktop operating systems ( windows 10 and ... Direct experience with O365 + GSuite- Familiarity with VoIP phone systems , printer troubleshooting and network troubleshooting techniques Training Requirements 1+… more
    Reynolds & Reynolds (06/25/25)
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