• Sr Principal Windows Systems Administrator…

    Northrop Grumman (Dulles, VA)
    …Linux Operating System experience and/or certification for current versions + Red Hat certification for current version + VMWare experience with current ... in written and oral format. + Maintain smooth operation of multi-user computer systems , including coordination with network, software, and system engineers, PC… more
    Northrop Grumman (10/31/25)
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  • Systems Administrator II - Pipeline (TS/SCI…

    COMSO, Inc (Fort Meade, MD)
    …+ Configures and manages UNIX, Linux and Windows operating systems and installs/loads operating system software, troubleshoots, maintains integrity and ... requirements can be fulfilled with either Microsoft OS, Cent OS/ Red Hat OS CE certifications. + Four... Linux and Windows (or other applicable) operating systems and installs/loads operating system software, troubleshoot,… more
    COMSO, Inc (10/21/25)
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  • Sr Staff Computer Systems Analyst

    Northrop Grumman (Annapolis Junction, MD)
    …Linux Operating System experience and/or certification for current versions + Red Hat certification for current version + VMWare experience with current ... environment + DoD 8570 Certification in a primary Operating System (Windows, Linux , Cisco) + Experience operating...Linux , Cisco) + Experience operating under and managing systems within NISPOM Chapter 8, DCID 6/3-ICD 503, RMF,… more
    Northrop Grumman (10/30/25)
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  • System Administrator Multi-Disciplined

    RTX Corporation (El Segundo, CA)
    … administration, backup, and recovery enterprise suites. **Qualifications We Prefer:** + Red Hat Enterprise Server, Active Directory, WSUS, VMware, BackupExec, ... secure world. **What You Will Do:** + Provide IT systems administration in a heterogeneous Microsoft Windows and RedHat...administration in a heterogeneous Microsoft Windows and RedHat Enterprise Linux environment. + Working as a team member in… more
    RTX Corporation (09/24/25)
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  • Cloud System Administrator

    ERP International (Laurel, MD)
    …candidate should be able to configure, manage/monitor cloud Kubernetes environments running on Red Hat servers. Experience with Azure is a plus. Looking for ... **Overview** ERP is currently seeking a highly skilled **Cloud System Administrator** to support one of our technical projects...one of our technical projects with the Defense Information Systems Agency (DISA). This role will facilitate the semi… more
    ERP International (10/22/25)
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  • Senior Information Systems Administrator

    Concurrent Technologies Corporation (Huntsville, AL)
    …encryption-based systems . + Working Knowledge of Patching and updating Windows and Red Hat servers and workstations. + Familiarity with ACAS Suite, to ... networking design and architectures, as well as network management. + Working knowledge of Linux and Windows operating systems (Puppet CM or similar). + Possess,… more
    Concurrent Technologies Corporation (10/19/25)
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  • System Administration - Tiered Support

    CACI International (Annapolis Junction, MD)
    …+ Configuration and management of UNIX, Linux , and Windows operating systems . + Installation and maintenance of operating system software and security ... maintain, troubleshoot, and optimize a wide variety of IT systems . We are seeking a qualified System ...Computing Environment (CE) Certification (eg, Microsoft OS, Cent OS, Red Hat OS). + 4 years of… more
    CACI International (08/21/25)
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  • Systems Administrator (IT Program Services)

    Nightwing (Annapolis Junction, MD)
    …and experience in Linux Systems Administration using Debian or Red Hat based distributions. Understanding and familiarity with various IT concepts such ... community, defense, civil, and commercial markets. Nightwing is seeking an experienced Linux Systems Administrator with a proven ability supporting classified… more
    Nightwing (09/22/25)
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  • Infrastructure Cloud Engineer Lead

    NTT DATA North America (Dallas, TX)
    …Windows Server Hybrid Administrator Associate + Microsoft Certified: Azure Administrator Associate + Red Hat Certified System Administrator (RHCSA) + Red ... management and OS lifecycle management. + Performance tuning and system optimization for both Windows and Linux ...and system optimization for both Windows and Linux servers. + Monitoring and logging tools: Nagios, Zabbix,… more
    NTT DATA North America (09/03/25)
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  • System Administrator

    CACI International (Annapolis Junction, MD)
    …and management + Configure and manage UNIX, Linux , and Windows operating systems + Troubleshoot OS software and enhance system performance and reliability + ... maintain, troubleshoot, and optimize a wide variety of IT systems . We are seeking a System Administrator...Computing Environment (CE) Certification (eg, Microsoft OS, CentOS, or Red Hat OS) + Other Requirements: +… more
    CACI International (10/30/25)
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