• Information Systems Security Engineers…

    Noblis (Philadelphia, PA)
    …of modern computing platforms and technologies + Experience with modern networks, operating systems , databases, and virtual computing + Experience with testing ... to enable research, development, test and evaluation, acquisition, engineering, systems integration, in- service and fleet engineering with cybersecurity,… more
    Noblis (12/06/25)
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  • Information Systems Security Officer (ISSO)…

    Serco (Socorro, NM)
    …science or other related field. + Working knowledge of Microsoft Windows OS and RedHat Linux and Tru64 UNIX Operating System. + An active DoD IAM Level III ... **Position Description** Are you an Information Systems Security Officer looking for a place to...the application of cybersecurity measures. + Protect ISs, their operating system, peripherals (media and devices), applications, and the… more
    Serco (12/19/25)
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  • Associate Manager, Alternate Information…

    Lockheed Martin (Moorestown, NJ)
    …documents\. * Proven experience in executing security hardening on Windows and RHEL operating systems , based on approved DISA STIGs\. * Demonstrated experience ... cyber support for our classified environments\. The Rotary and Mission Systems \(RMS\) Classified Cyber Security organization is seeking a Classified Cyber… more
    Lockheed Martin (12/19/25)
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  • Junior NTCSS Automated Information Systems

    CACI International (Norfolk, VA)
    …CompTIA Security+ certification or achieve within six months of hire + Must complete Linux Operating System training or achieve within six months of hire ... Junior NTCSS Automated Information Systems Analyst Job Category: Service Contract...Navy Tactical Command Support System (NTCSS) System Administration support services and training to COMNAVAIRLANT (CNAL) and its supported… more
    CACI International (12/11/25)
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  • Systems Engineer

    General Dynamics Information Technology (Bossier City, LA)
    …moderately complex infrastructure including installing, configuring, testing and maintaining operating systems , application software, and system management ... Systems Engineering + Required Technical Skills: Red Hat, Linux and Solaris (a plus) + Security Clearance Level:...most. We are GDIT. A global technology and professional services company that delivers consulting, technology and mission … more
    General Dynamics Information Technology (12/12/25)
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  • Senior System Cloud Administrator

    Insight Global (Herndon, VA)
    …and scripting. You will be responsible for maintaining, optimizing, and securing our Linux -based systems and services , ensuring high availability and ... Job Description We are seeking a highly skilled Senior Linux Systems Administrator to join our IT...upgrades - Assists the IT operations team to perform operating system updates, patching, installing and troubleshooting. - Diagnose… more
    Insight Global (12/04/25)
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  • Systems Network Administrator (SNA-2)

    Leidos (Laurel, MD)
    …+ Configure and manage Linux , UNIX and Windows (or other applicable) operating systems and installs/loads operating system software, troubleshoot, et al. ... **Description** **Leidos** has a new and exciting opportunity for a ** Systems Network Administrator** in our **National Security Sector's (NSS) Cyber & Analytics… more
    Leidos (11/18/25)
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  • Systems Administrator Sr / Alis / F-35…

    Lockheed Martin (Orlando, FL)
    …* Importing/Exporting large data volumes\. * Knowledge of Windows Server and Desktop Operating Systems \( Server 2019, Office, Win 10, etc\.\) * Previous ... the forefront of cutting\-edge technology and engineering\. Position Assignment: F\-35 Systems Administrator located in Jyvaskyla, Finland, in support of training… more
    Lockheed Martin (12/05/25)
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  • Senior Software Quality Assurance Engineer…

    RTX Corporation (Richardson, TX)
    …virtualized environments + Experience with Kubernetes and containerization + Experience in a Unix/ Linux and Windows operating systems + Experience with data ... and software design principles, particularly in high-concurrency and distributed systems + Experience with multithreading, memory management, and performance… more
    RTX Corporation (12/17/25)
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  • Senior Systems Engineer - IT

    Lockheed Martin (Littleton, CO)
    …research, design, development, manufacture, integration, and sustainment of advanced technology systems , products, and services \. Lockheed Martin \(LM\) Rotary ... At LM we engineer innovative solutions to deliver resilient systems , products, and services across evolving cyber...will have a strong background in Red Hat Enterprise Linux \(RHEL\), system hardening, and network security principles, with… more
    Lockheed Martin (11/12/25)
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