• Windows System Administrator (Senior-Level)

    Link Solutions Inc (Adelphi, MD)
    …for CMMI ML3 for Services and Development. Link Solutions is seeking a Windows System Administrator (Senior-Level) to join our team at Adelphi, MD. + Must be a US ... Clearance + Non-remote (relocation incentive available) The Windows System Administrator (Senior-Level) will be responsible for the installation, configuration,… more
    Link Solutions Inc (10/08/25)
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  • Windows System Administrator 1

    M. C. Dean (Falls Church, VA)
    …lives, and changing the world for the better. We are seeking a **System Administrator 1** to join our **Security and Electronic Systems (SES)** business Unit. As ... level of support. + Monitor Enterprise system status for problems such as network outages and or degraded services; provide initial troubleshoot notify proper Sr.… more
    M. C. Dean (12/23/25)
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  • Systems Administrator

    Arena Technical Resources, LLC (Springfield, VA)
    Systems Administrator Location: Springfield, VA, US Job ID: ATR 17769 Job Description Job Title: Systems Administrator Location: Springfield, VA Eligibility: ... - At least 3 years of relevant IT experience in operations, network operations center, systems administration, or similar support role. - Working knowledge… more
    Arena Technical Resources, LLC (01/01/26)
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  • SIPRNet Administrator

    CACI International (Reston, VA)
    …CAT I/ CAT II / CAT III findings associated with scans of network devices. + Coordinate with ISSO/ISSM to update POA&M and reflect open vulnerabilities associated ... SIPRNet Administrator Job Category: Information Technology Time Type: Full...innovation. **Responsibilities:** + Administer routers, firewalls, switches, and other network devices in accordance with authoritative USG requirements documents… more
    CACI International (11/07/25)
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  • System Administrator

    Synergy ECP (Columbia, MD)
    System Administrator Columbia, MD (http://maps.google.com/maps?q=Columbia+MD+USA+21046) Description Founded in 2007 and headquartered in Columbia, Maryland, Synergy ... day-to-day operations, monitoring and problem resolution for all of the client/server/storage/ network devices, mobile devices, etc. Provides Tier 1 (Help Desk) and… more
    Synergy ECP (10/22/25)
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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 ... and support engineering with projects. + Comprehensive knowledge of network topology; along with networked hardware and software tools...ability to obtain a Polygraph. + Current IAT level II certification (ex: Security+) + 7+ Years of relevant… more
    CACI International (12/29/25)
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  • Cybersecurity System Administrator - DMV

    M. C. Dean (District Of Columbia, DC)
    Overview MC Dean is seeking a highly skilled **Cybersecurity System Administrator ** to support a secure operational technology environment by integrating advanced ... within a Windows ecosystem. + Operate and manage jump (bastion) hosts for network segregation and secure remote access. + Coordinate with development and support… more
    M. C. Dean (11/26/25)
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  • Cyber Systems Administrator (Active TS/SCI)

    Northrop Grumman (Elkridge, MD)
    …those missions. By joining in our shared mission, we'll support expanding your personal network and developing skills, whether you are new to the field, or an ... 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 (01/01/26)
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  • Secret Server Administrator - Active TS/SCI…

    ENS Solutions (Washington, DC)
    The Secret Server Administrator will perform a variety of functions supporting multiple Secret Server Deployments. Responsibilities include: tools deployment and ... Must meet the DoD 8570 compliance with Information Assurance Technical (IAT) Level II certification. + Bachelor's degree in a technical discipline from an accredited… more
    ENS Solutions (10/28/25)
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  • Senior Linux Administrator Team Lead

    General Dynamics Information Technology (Falls Church, VA)
    …**US Citizenship Required:** Yes **Job Description:** **HOW A LINUX SYSTEM ADMINISTRATOR WILL MAKE AN IMPACT:** + Provide system administration support for ... Provide performance metrics and usage charts, including CPU usage, disk usage and network uptime for the Linux Servers. + Provide general maintenance, upgrades, and… more
    General Dynamics Information Technology (10/25/25)
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