• Fidelis Administrator - Active TS/SCI with CI Poly

    ENS Solutions (Norfolk, VA)
    …analyze root causes and resolve complex issues utilizing your knowledge of industry. Performs systems administration of cyber tools sets and server systems ... Install, configure and manage operating system and application software as necessary. Support Linux & Windows systems engineering efforts in system design and… more
    ENS Solutions (09/27/25)
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  • System Administrator

    Shuvel Digital (Reston, VA)
    …information technology, mathematics, or related field. + 3-5 years of experience working in Linux Systems Administration or a related field with experience ... Briefly Describe the Work: GITI is looking for a mid-level Systems Administrator with experience in installing, configuring, troubleshooting, and maintaining server… more
    Shuvel Digital (11/12/25)
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  • Customer Service Support Specialist - TS/SCI…

    General Dynamics Information Technology (Chantilly, VA)
    …+ Demonstrated experience in technical support service + Demonstrated experience in system administration for Windows and Linux systems + Demonstrated ... an enterprise ticketing system + Demonstrated experience working with Windows Operating Systems + Demonstrated experience working with Linux Operating Systems more
    General Dynamics Information Technology (08/26/25)
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  • Database Administrator III

    RTX Corporation (Chesapeake, VA)
    …ATO requirements) + To provide backup support to SIPRNet Red Hat Enterprise Linux (RHEL) Systems Administrator for day-to-day Global Command and Control ... Linux Server** and services + Experience with refactoring old database systems **Preferred Qualifications:** + Linux + Certification + Strong analytical and… more
    RTX Corporation (10/15/25)
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  • System Administrator

    Nightwing (Sterling, VA)
    …development environment, and Cloud automation. The SysA demonstrates strong Linux /Windows administration experience, including package management, security ... are transitioned to customers in a timely manner. Required Skills: + Operating Systems : Extensive knowledge of Windows and Linux operating systems . +… more
    Nightwing (09/26/25)
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  • Database Administrator - active TS/SCI w/ Poly…

    V2X (Chantilly, VA)
    …design, and related Oracle technologies (Partitioning, Encryption, Pluggable Database, etc.) on Linux systems + Significant Oracle Exadata and PL/SQL developer ... **Responsibilities:** + Participating in leading the design, development, and administration of Oracle 19c databases + Designing and developing database… more
    V2X (11/08/25)
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  • Field Cybersecurity Support Specialist

    ICF (Reston, VA)
    …server administration + Microsoft 365 or Azure Cloud Services + Unix or Linux operating systems administration + Virtual server administration : ... server with Windows and Linux virtual machines + Windows and Linux System Administration and troubleshooting + Monitor production environment performance,… more
    ICF (11/13/25)
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  • Secret Windows Systems Engineer

    Insight Global (Mount Vernon, VA)
    … Engineers supporting our customers' requirements and running Production and Development systems . Candidate should be experienced with Linux and Windows ... customers and our Government representatives. * Installation and configuration of operating systems including Linux and Windows * Security hardening *… more
    Insight Global (11/08/25)
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  • Senior Principal Cyber Security Engineer

    ManTech (Chantilly, VA)
    …Information and Event Management (SIEM) platforms, and/or Splunk + Knowledge of Linux systems administration , general operating system security practices, ... of DoD policy and technical security guidance to information systems + DoD Directive 8570.1 IAT Level II or...Splunk Certification is required **Preferred Qualifications:** + Experience with Linux , Red Hat and CentOS + Experience with AWS… more
    ManTech (10/24/25)
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  • Tenable Engineer

    CACI International (VA)
    …Solutions; Tenable preferred + Experience deploying, automating, and hardening Red Hat Linux Operating Systems + Experience supporting the Department of Defense ... US * * * **The Opportunity:** Join alongside an Information Technology (IT) Systems Engineering team supporting the Department of the Air Force (DAF) Enterprise… more
    CACI International (10/15/25)
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