• Infrastructure Engineer/Administrator

    CACI International (Mclean, VA)
    …demonstrated experience with multiple cloud platforms, automation technologies, and with Linux system administration . The successful candidate will ensure the ... Travel: None * * * **The Opportunity:** CACI is seeking a highly motivated Linux System Engineer and Administrator with hands on experience with the full lifecycle… more
    CACI International (09/26/25)
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  • Sr. System Administrator

    RTX Corporation (Tucson, AZ)
    …complex IT infrastructure problems. **What You Will Do:** . Provide IT systems administration in a heterogeneous Microsoft Windows and Redhat Enterprise Linux ... environment. . Understanding and knowledge of Windows Server internals or Linux fundamentals to include DNS, DHCP, AD, and server replication methods. . Working as a… more
    RTX Corporation (09/24/25)
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  • System Administrator

    METECS (Houston, TX)
    …and cybersecurity posture. If you have a strong background in Windows, Linux , Cloud Technologies, and information security practices (ISO 27001), we would love ... to hear from you. Key Responsibilities: + Provide support for Linux -based systems and servers, including installation, maintenance, and troubleshooting. + Contribute… more
    METECS (09/18/25)
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  • Systems Administrator - Multiple Levels

    Noblis (San Diego, CA)
    …maintaining security + Loading operating systems, including Windows, Solaris, Unix and Linux . + Develop active directory user accounts, proxy servers, and account ... keyboards Required Qualifications + TS/SCI clearance required + Experience in system administration , network administration , or a related IT field + Administer… more
    Noblis (09/18/25)
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  • NITE System Administrator IV

    Huntington Ingalls Industries (Virginia Beach, VA)
    …to Navy readiness and warfighter training. This position involves hands-on administration , maintenance, and cybersecurity defense of client and server systems across ... Monitor performance and troubleshoot Tier 2 technical issues across Windows and Linux platforms + Author and maintain Standard Operating Procedures (SOPs) and… more
    Huntington Ingalls Industries (09/17/25)
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  • Cyber Security Engineer (Elastic SME)

    CACI International (Hampton, VA)
    …to provide insights into data trends. + Utilize extensive understanding of Linux command line administration . + Configure syslog, audit.d, and Windows ... _Desired:_ + AF DCGS experience + Four to seven years of Linux systems administration experience + Knowledge of security best practices and standards, including… more
    CACI International (09/17/25)
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  • NMCC Information Systems Security Engineer

    TekSynap (Arlington, VA)
    …Nessus, Trellix ePO (HBSS/ESS), and associated Windows and Red Hat Linux servers. + Proactively monitor system performance, identify bottlenecks, and implement ... Develop and maintain standard operating procedures (SOPs) for security tool administration . + Vulnerability Management & System Hardening: + Conduct technical… more
    TekSynap (09/16/25)
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  • System Integration Engineer (Onsite)

    RTX Corporation (East Hartford, CT)
    …to support remote test system operations. **What You'll Do** + Perform Linux system administration tasks (eg, user management, configuration updates, file ... engineering, hardware/software integration, or related field. + Hands-on experience with Linux system administration and automation (eg, Ansible). + Proficiency… more
    RTX Corporation (09/13/25)
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  • Senior Information Systems Engineer - Onsite

    RTX Corporation (Andover, MA)
    …(STEM) + Minimum five (5) years of prior relevant experience with systems administration of Windows or Linux Server Operating Systems within Enterprise ... engineering systems in the world. As part of the Test Environment Support Administration ( **TESA** ) team, you be working with both leading-edge technologies and… more
    RTX Corporation (09/13/25)
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  • ServiceNow Administrator/Developer

    CAI (Miramar, FL)
    …ready to take us to the next level! If you have ServiceNow administration experience, Linux knowledge, and a basic development understanding, and are ... support 60+ self-hosted ServiceNow Health & Safety instances, running in a Linux environment + Configure, customize, and optimize ServiceNow modules including ITSM… more
    CAI (08/08/25)
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