• Senior Systems Administrator with Poly

    BigBear.ai (Annapolis Junction, MD)
    …optimized performance and security + Support patching, upgrading, and migrating of Linux systems and VMs. + Support agile activities for systems including release ... degree and 10+ years of SA experience + Proficient with Linux . Minimum of 3 years Linux system administration experience (within the last 3 years). + Knowledge… more
    BigBear.ai (12/30/25)
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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 with major ... TS/SCI with Poly highly desired * Operating Systems: Strong understanding of Linux fundamentals and system administration. * Cloud Platforms: Experience with major… more
    CGI Technologies and Solutions, Inc. (12/30/25)
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  • Software Integration Engineer Level 4

    General Dynamics Information Technology (Annapolis Junction, MD)
    …and reliability under various conditions. What you will need Experience with the Linux CLI, and Linux tools Recent experience using Bash/Python to develop ... scripts to automate testing of HPC systems Recent Linux administration experience in an HPC multi-host/multi-instance environment Experience troubleshooting hardware… more
    General Dynamics Information Technology (12/29/25)
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  • Technical Lead

    Nightwing (Sterling, VA)
    …development and testing across multiple platforms, including Windows, macOS, Linux , mobile, and embedded environments. + Collaborate effectively with ... in at least one of the following environments: + BSD/ Linux /Unix + Windows + macOS + Android + RISC...one or more of the following platforms: Windows, macOS, Linux , mobile, or embedded systems. + Ability to reverse… more
    Nightwing (12/29/25)
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  • Software Engineer Level 2

    General Dynamics Information Technology (Annapolis Junction, MD)
    …Required:** None **Job Family:** Software Engineering **Skills:** Containerization,Docker (Software), Linux **Experience:** 5 + years of related experience **US ... builds and deployments. What you will need Experience using the Linux CLI and Linux tools Proficient using Bash/Python to develop scripts to automate… more
    General Dynamics Information Technology (12/29/25)
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  • Senior Pega Systems Administrator

    Scotiabank (OR)
    …understand the Pega applications with advanced troubleshooting skills of Pega Systems, AIX, Linux , JBOSS, Tomcat and Azure Cloud experience. + Manage day to day ... Pega application + Deep understanding and experience working with Linux , AIX commands and troubleshooting of system issues +...or Certification + 2+ Years of System Administrator (AIX, LINUX , JBOSS, Azure Cloud) + 2+ years' working experience… more
    Scotiabank (12/28/25)
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  • Fidelis Administrator - Active TS/SCI with CI Poly

    ENS Solutions (Reston, VA)
    …configure and manage operating system and application software as necessary. Support Linux & Windows systems engineering efforts in system design and evaluation, ... appliance via SSH or Console Port + Experience operating and maintaining Linux servers, including operating systems and applications, patching, and other updates +… more
    ENS Solutions (12/27/25)
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  • Systems Administrator

    CACI International (Linthicum, MD)
    …and availability of customer systems. We are looking for a dedicated Linux System Administrator to help us ensure information security readiness and maintain ... _Required:_ + **TS/SCI with Polygraph** + Stand up, configure, and maintain Linux servers. + Apply fixes, patches and upgrades in a timely fashion.… more
    CACI International (12/27/25)
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  • ACAS Engineer - Active Top Secret Clearance…

    ENS Solutions (College Park, MD)
    …flow analysis, packet capture analysis, network proxies, firewalls, anti-virus capabilities, Linux or UNIX command line, and access control lists. Requirements + ... Assured Compliance Assessment Solution (ACAS) + Experience with Windows and Linux , including installing, configuring, or maintaining servers operating systems and… more
    ENS Solutions (12/27/25)
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  • System Administrator

    Nightwing (Sterling, VA)
    …environment, and Cloud automation. The SysA demonstrates strong Linux /Windows administration experience, including package management, security hardening, kickstart, ... + Configure, build, monitor, update/upgrade, transition and maintain/administer servers ( Linux , Windows, Nutanix, AWS, and Google, including security appliance… more
    Nightwing (12/26/25)
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