• Public Key Infrastructure (PKI) Security…

    Tetrad Digital Integrity LLC (Falls Church, VA)
    …Web Service + Active Directory Certificate Services (ADCS) monitoring + IT system administration experience ( systems management, networks, firewalls) in ... an enterprise environment + Infrastructure IT ( Systems Administration , Network Administration Windows/ Linux OS, Network Administration , Active… more
    Tetrad Digital Integrity LLC (11/20/25)
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  • Lead Network Systems Engineer

    SAIC (Scott AFB, IL)
    …hire + Proven experience as a Network Engineer + Proficient in Redhat Enterprise Linux OS and command line administration + Expertise in Palo Alto ... **Description** SAIC is seeking a Lead Network Systems Engineer to support the AWS Cloud Managed...enhance service capabilities + Participate in strategic planning with senior managers **Work Schedule:** + Standard business hours (Monday… more
    SAIC (10/09/25)
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  • Section Manager- DT

    RTX Corporation (Tucson, AZ)
    …Plan (AOP) and report status to senior leadership.** + **Oversee IT systems administration across Microsoft Windows and Red Hat Enterprise Linux ... responsible for up to 50% of time with hands-on system administration duties on environments to include...and OS integration. Coordinate technical documentation reviews and resolve system admin and integration issues.** + **Participate… more
    RTX Corporation (11/13/25)
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  • Red Team Operator

    Amentum (Norfolk, VA)
    …vulnerability analysis of other systems in the network). + Knowledge of system administration concepts for Unix/ Linux and/or Windows operating systems ... discovered vulnerabilities and misconfigurations associated with but not limited to operating systems (Windows, Linux , etc.), protocols (HTTP, FTP, etc.), and… more
    Amentum (11/12/25)
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  • Engineer Systems 3

    HII (NC)
    …experience. + A current CompTIA Security + certification. + Must be familiar with Linux (command line) and Windows operating systems . + Must have technical ... its fleet. With a holistic approach to life-cycle maritime defense systems -from small watercraft to submarines, surface combatants and aircraft carriers-HII ensures… more
    HII (11/20/25)
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  • AIX Administrator

    ASM Research, An Accenture Federal Services Company (Phoenix, AZ)
    …Master's Degree preferred. + 8-15 years of overall experience in information technology, systems administration or other IT related field to include: 5+ years ... and 3 supports for escalations from Help Desk. + Knowledge and experience troubleshooting Linux and Unix based systems . + Participate in on-call rotations to… more
    ASM Research, An Accenture Federal Services Company (11/21/25)
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  • Sr. Specialist Cyber Infrastructure Engineer

    L3Harris (Carlsbad, CA)
    …of progressive IT and security experience, with a proven record in systems administration , cybersecurity engineering, and secure infrastructure management. + ... ability to analyze outputs and drive remediation. + Extensive background as a Linux System Administrator in secure, classified environments, with expertise in… more
    L3Harris (09/25/25)
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  • Lead Programmer Analyst

    SUNY Geneseo (Geneseo, NY)
    …designs, constructs, tests, documents, and supports software associated with campus administrative information systems . In addition to custom developed software, ... Act as lead developer supporting the Banner student information system and other campus management information systems ...analytical reporting tools such as PowerBI * Experience with Linux /Unix commands and operating system * Experience… more
    SUNY Geneseo (09/10/25)
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  • DevOps Application Specialist

    CGI Technologies and Solutions, Inc. (Arlington, VA)
    …TS/SCI with Poly highly desired * Operating Systems : Strong understanding of Linux fundamentals and system administration . * Cloud Platforms: Experience ... TS/SCI with Poly highly desired * Operating Systems : Strong understanding of Linux fundamentals and system administration . * Cloud Platforms: Experience… more
    CGI Technologies and Solutions, Inc. (09/30/25)
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  • OpenShift Engineer

    Arena Technical Resources, LLC (Springfield, VA)
    …cluster upgrades and security patches as needed Experience withRed Hat Enterprise Linux system administration Experience withcontainer orchestration and ... to obtain a CI Polygraph Job Description: How a Senior Systems Engineer will make an impact...equivalent experience - 10+ years of related experience RequiresRHEL- Linux administration experience - 5+ year or… more
    Arena Technical Resources, LLC (10/25/25)
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