• Senior Network and Next Generation Firewall…

    Lumen (Annapolis, MD)
    …experience is desired. Event analysis via SIEM or vendor application is desired. + Linux RedHat Server Administration is considered a plus. + Recognized industry ... role working towards the development of new solutions, processes, tools, systems that have company-wide and possibly industry-wide impacts. + Frequent contact… more
    Lumen (10/01/25)
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  • Application Security Engineer II

    ASM Research, An Accenture Federal Services Company (Annapolis, MD)
    …Supports development of technical security safeguards to protect information systems from intentional or accidental access/destruction + Liaison between development ... equivalent. **Other Job Specific Skills** + Expertise with application server technologies such as JAVA, .Net, Phython etc. +...+ Must have solid working experience and knowledge of Unix/ Linux operating system. + Experience with one or more… more
    ASM Research, An Accenture Federal Services Company (09/09/25)
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  • Software Quality Assurance Testers

    Guidehouse (New Carrollton, MD)
    …and Waterfall development methodologies. + Exposure to enterprise platforms including Windows, Linux , UNIX, and mainframe systems . + Experience working with ... and resolution tracking. + **Cross-Platform Testing** : Comfortable testing across Windows, Linux , UNIX, and mainframe systems . + **Database Validation** :… more
    Guidehouse (09/28/25)
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  • Senior Systems Administrator

    CACI International (Annapolis Junction, MD)
    …Travel: Local * * * **The Opportunity:** **CACI** is seeking a **Senior Linux Systems Administrator** to provide support for implementation, troubleshooting and ... remains involved in the resolution process + Configure and manage primarily Linux /Unix (or other applicable) operating systems and installs/loads operating… more
    CACI International (09/25/25)
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  • Systems Administrator 1

    Amentum (Annapolis Junction, MD)
    …& Intel space? If so, look no further. Amentum is seeking a ** Systems Administrator** to join our team of passionate individuals in **Annapolis Junction, MD** ... impact on the Nation's security and intelligence mission. **Responsibilities:** Skilled Linux based System Administrator to support DevOps team. This role requires… more
    Amentum (07/19/25)
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  • Cloud Engineeer

    ManTech (Hanover, MD)
    …and troubleshoot Linux (Amazon Linux 2023, RHEL 8/9) and Windows Server (2016/2022) systems . + Configure and manage core services such as Active ... Qualifications:** + Fourteen (14) years of experience as a Systems Administrator or Cloud Engineer supporting programs...other cloud technologies. + Amazon Linux 2023, Linux RHEL 8/9, Windows Server 2016/2022. +… more
    ManTech (09/13/25)
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  • Sr. Principal NetApp Storage Administrator

    Northrop Grumman (Linthicum Heights, MD)
    …deploying vulnerability scanning tools and remediation. + Experience deploying and managing Linux systems (preferably Red Hat) in both a domain-joined and ... non-domain-joined environment. + Experience managing SELinux and FAPolicy on Linux systems . + Experience Supporting license managers. + Experience giving… more
    Northrop Grumman (07/18/25)
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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 on-premise contexts **Minimum Qualifications:** + 20+ years of experience as a Systems Administrator or Cloud Engineer supporting programs and contracts of… more
    ManTech (09/10/25)
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  • Fidelis Administrator - Active TS/SCI with CI Poly

    ENS Solutions (College Park, MD)
    …of industry. Performs systems administration of cyber tools sets and server systems connected to networks across multiple classification domains. Provide ... manage operating system and application software as necessary. Support Linux & Windows systems engineering efforts in...configuration management. + Experience as a network administrator or systems engineer . + Experience in using Active… more
    ENS Solutions (09/27/25)
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  • Journeyman Software Quality Assurance Tester

    Guidehouse (New Carrollton, MD)
    …and Waterfall development methodologies. + Exposure to enterprise platforms including Windows, Linux , UNIX, and mainframe systems . + Experience working with ... and resolution tracking. + **Cross-Platform Testing** : Comfortable testing across Windows, Linux , UNIX, and mainframe systems . + **Database Validation** :… more
    Guidehouse (09/28/25)
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