• Senior System Administrator…

    St. George Tanaq Corporation (Suitland, MD)
    Senior System Administrator - Network Operation Center WFH Flexible*Suitland, MD (http://maps.google.com/maps?q=Suitland+MD+USA) Job Type Full-time Description ... us, visit https://tanaq.com/tanaq-technical-services. **About the Role** We are seeking a ** Senior System Administrator - Network Operation Center** to support… more
    St. George Tanaq Corporation (11/14/25)
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  • Senior IT Support & Executive Services…

    3D Systems, Inc. (Rock Hill, SC)
    …network layers with precision and efficiency. * Perform advanced diagnostics, system administration , and in-depth network troubleshooting across diverse ... experience managing A/V meeting room technologies, including platforms such as Microsoft Teams Admin Center, Poly, and Cisco Systems . * Proficiency in PowerShell… more
    3D Systems, Inc. (09/19/25)
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  • Senior Principal Windows System…

    RTX Corporation (El Segundo, CA)
    …functional teams + Coordinate technical and process document reviews, and resolve system administration , engineering, and integration issues + Participate in ... + Share technical expertise and mentor a team of System Administrators to ensure the confidentiality, integrity, and availability...VMware), Group Policy, Backup and Recovery. + Provide IT systems administration in a Microsoft Windows and… more
    RTX Corporation (10/24/25)
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  • Senior Cloud System Administrator

    ManTech (Hanover, MD)
    …start to obtain it + Proficiency in administering Linux operating systems . + Experience with Windows Server 2022 administration , including Active Directory ... and contracts of similar scope and complexity + Bachelor's degree in system engineering, Computer Science, Information Systems , Engineering Science, Engineering… more
    ManTech (09/10/25)
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  • Senior Systems Administrator

    Belay Technologies (Annapolis Junction, MD)
    …Work 2019, runner up in 2020 and a finalist in 2021! Belay Technologies seeks a Senior System Administrator (SA) to join our intel team. The SA provides support ... for implementation, troubleshooting and maintenance of IT systems . Manages IT system infrastructure and any...or university is required. Five (5) years of additional system administration experience may be substituted for… more
    Belay Technologies (11/19/25)
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  • Senior Systems Administrator

    SMX (Patuxent River, MD)
    Senior Systems Administrator (4521)at SMX(View all jobs) (https://www.smxtech.com/careers/) Patuxent River, MD SMX is looking for a highly motivated ** Senior ... area network (LAN), wide area network (WAN), and Internet systems or a segment of a network system...other DOD INST 8570 compliant qualification + Knowledge of system administration principles, theories, and concepts +… more
    SMX (11/21/25)
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  • Senior Systems Administrator

    Exeter Government Services, LLC (Miami, FL)
    SCITES - Senior System Administrator Location: Doral, FL Required Clearance: TS or Secret w/SSBI (Tier 5 Investigation) Certifications: DoDM 8570 IAT Level II ... on position level Required Experience: 1- 5 years of System Admin experience Position Description: Exeter Government...experience Position Description: Exeter Government Services is seeking a Senior Systems Administrator (SA) to work for… more
    Exeter Government Services, LLC (09/07/25)
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  • Senior System Administrator

    RTX Corporation (Springfield, VA)
    …security clearance. + Security+ DoD 8570 certification or higher. + System administration across Linux systems . + Experience in the Intelligence ... create a safer, more secure world. Raytheon seeks a Systems Administrator to join a high-performing team at the...its national security strategy. This is for an on-site system administrator sustaining and maintaining a VM-based data … more
    RTX Corporation (11/15/25)
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  • Systems Engineer Senior

    General Dynamics Information Technology (Macdill AFB, FL)
    …Family:** IT Infrastructure and Operations **Skills:** Active Directory (AD),Complex Systems ,Computer Servers, System Administration , Systems Engineering ... while you advance your career. Join GDIT as a Systems Engineer Senior and build an impactful...our customer. * Designs server and application architectures; performs administrative operation and maintenance functions of server hardware and… more
    General Dynamics Information Technology (10/21/25)
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  • Senior Principal Systems Engineer…

    RTX Corporation (Tewksbury, MA)
    …problems that create a safer, more secure world. Raytheon is seeking a ** Senior ** **Principal** ** Systems Security Engineer-P5** to join our elite Systems ... Intelligence agencies + Experience with IT and/or network and system security administration , including operating system...best practices for UNIX, MS Windows, Red Hat Enterprise Linux , and CISCO systems + Understanding of… more
    RTX Corporation (10/01/25)
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