• Infinity Systems Engineering (Alexandria, VA)
    …- now, come be more with us! Job Summary: We are seeking a skilled Systems Administrator/Network Engineer to join our mission-driven team. This position offers a ... secure, and troubleshoot Juniper and Cisco switches. + Perform systems administration on Windows and Linux platforms...configuration (Cisco experience is a plus) + Proficient in Linux and Windows system administration + Active more
    DirectEmployers Association (12/03/25)
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  • AeroVironment (Arlington, VA)
    …and tactical missile systems . Founded in 1971 by celebrated physicist and engineer , Dr. Paul MacCready, we've been at the leading edge of technical innovation ... IT projects by participating in the design, development, and implementation of information systems to ensure these systems include security features and meet… more
    DirectEmployers Association (12/02/25)
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  • Linux Systems Engineer

    ENS Solutions (Springfield, VA)
    + Experience developing systems , products, and/or processes based on a total systems perspective. + Consults, plans, analyzes, designs, develops, tests, assures ... quality, configures, installs, implements, integrates, maintains, and manages systems . + Maintains a diverse set of skills across...6+ years of relevant experience. + Must have an Active TS/SCI ; willingness to obtain and maintain a… more
    ENS Solutions (11/14/25)
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  • LINUX Engineer - Active Top…

    General Dynamics Information Technology (Washington, DC)
    …Advance how our customers operate while you advance your career. Join GDIT as a Linux Engineer and you will build an impactful career in enterprise IT, ... like you. **MEANINGFUL WORK AND PERSONAL IMPACT** As a Linux Engineer , the work you'll do at...impactful to the customer's mission. . Maintain and manage Linux systems , including performing regular updates, backups,… more
    General Dynamics Information Technology (11/05/25)
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  • Linux Systems Engineer

    William C Brown Inc (Springfield, VA)
    Linux Systems Engineer EOE Statement We are an equal employment opportunity employer. All qualified applicants will receive consideration for employment ... law. Description Our work depends on a TS/SCI cleared Linux Systems Engineer joining our...or work/military experience QUALIFICATIONS: 5+ years of related experience CLEARANCE: Active TS / SCI Clearance and eligibility to obtain… more
    William C Brown Inc (09/25/25)
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  • Linux Systems Engineer

    SAIC (Arlington, VA)
    **Description** Seeking a Senior Systems /Network Engineer , working with a diverse team of contractors, government personnel and subject matter experts, focused ... Responsibilities include: + Supporting a variety of networks and systems in a mission-critical enterprise environment. + Excel independently...day one. + KEY - Advance knowledge of RedHat Linux and RedHat OpenShift. + KEY - Expertise in… more
    SAIC (12/06/25)
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  • Linux Engineer

    ManTech (Quantico, VA)
    …+ The Linux Engineer will maintain, update, and secure existing Linux systems on both classified and unclassified networks in support of Cyber ... **MANTECH** seeks a motivated, career and customer-oriented ** Linux Engineer ** to support our current...Candidates will be responsible for optimizing, maintaining, and securing Linux systems to ensure optimum performance with… more
    ManTech (10/31/25)
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  • Senior Linux Administrator Team Lead

    General Dynamics Information Technology (Falls Church, VA)
    Systems ,Software Updates,System Administration,Technical Issues **Certifications:** Red Hat Certified Engineer (RHCE) | Red Hat - Red Hat, CompTIA Security+ CE ... MAKE AN IMPACT:** + Provide system administration support for Linux operating systems including installing software, applying...Level Requirements:** + Must have a minimum of an active Secret clearance at time of interview and candidate… more
    General Dynamics Information Technology (10/25/25)
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  • Principal Systems Engineer

    V2X (Suitland, MD)
    …challenges with integrity, respect, responsibility, and professionalism. We are hiring a Principal Systems Engineer - active TS/SCI clearance to support our ... is required to be onsite. The position requires an active Top Secret/SCI clearance and the ability to obtain...and maintain a Counterintelligence (CI) Polygraph. The Senior-level Principal Systems Engineer shall lead a diverse, multi-… more
    V2X (11/15/25)
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  • Senior Computer Network Defense (CND)…

    V2X (Springfield, VA)
    …responsibility, and professionalism. We are hiring for a Senior Computer Network Defense (CND) Engineer with an active TS/SCI clearance - with the ability to ... Management (SIEM) products, vulnerability scanning tools as deployed within hosted Information Systems . Responsibilities + The Senior CND Engineer develops and… more
    V2X (12/12/25)
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  • IDS / IPS Engineer - Active TS/SCI…

    ENS Solutions (Washington, DC)
    …logging, and output modules. + Extensive experience administering Red Hat Enterprise Linux (RHEL) systems , including package management (yum/dnf), kernel module ... We are seeking an experienced Network Intrusion Detection Engineer to join our cybersecurity team. The ideal candidate must possess strong Linux engineering… more
    ENS Solutions (12/14/25)
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  • ACAS Engineer - Active Top Secret…

    ENS Solutions (Washington, DC)
    …innovative solutions to enable secure and reliable operations of enterprise computer systems . Engineer , design, develop, and implement enterprise network cyber ... and Linux , including installing, configuring, or maintaining servers operating systems and applications + Experience working with STIGs, SCAP, and cybersecurity… more
    ENS Solutions (11/06/25)
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  • Suricata Engineer - Active TS/SCI…

    ENS Solutions (Washington, DC)
    …logging, and output modules. + Extensive experience administering Red Hat Enterprise Linux (RHEL) systems , including package management (yum/dnf), kernel module ... We are seeking an experienced Suricata Engineer to join our cybersecurity team. The ideal...Suricata (Docker/Kubernetes) in enterprise environments. + Familiarity with common Linux operating systems , including RHEL, Oracle, CentOS.… more
    ENS Solutions (11/26/25)
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  • ForeScout Engineer - Active TS/SCI…

    ENS Solutions (Washington, DC)
    …maintenance of Forescout CounterACT appliances + 5+ years of experience performing systems administration for Windows or Linux , including performing basic ... to solve complex security challenges. You will lead a team as they engineer solutions to complex challenges for customers using knowledge network engineering, … more
    ENS Solutions (12/06/25)
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  • Illumio Zero Trust Segmentation Platform…

    ENS Solutions (Washington, DC)
    …cloud security, or infrastructure engineering. + 3+ years of expertise in Linux /Windows systems , virtualization (VMware, Hyper-V), and cloud environments (AWS, ... Zero Trust program, influence architectural decisions, and help safeguard mission-critical systems by deploying one of the most advanced segmentation platforms in… more
    ENS Solutions (12/13/25)
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  • Software Engineer / IDAM - Active

    ENS Solutions (Washington, DC)
    …as Multi-Factor Authentication and Personal Identity Verification authentication + Experience with Linux based systems and Bash scripting + Ability to diagnose ... As a Software Development Engineer with a focus on Identity and Access.../ Bachelor's degree with 10+ years of experience. + Active TS/SCI clearance and ability to obtain and maintain… more
    ENS Solutions (12/08/25)
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  • Arkime Engineer - Active TS/SCI…

    ENS Solutions (Washington, DC)
    …segmentation, continuous verification, and identity-centric access. + Proficiency with Linux systems administration, containers, and distributed systems ... are seeking a highly skilled Arkime (formerly Moloch) Implementation & Sustainment Engineer to design, deploy, operate, and enhance our enterprise packet-capture and… more
    ENS Solutions (12/13/25)
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  • Endace Platform Engineer - Active

    ENS Solutions (Washington, DC)
    We are seeking a seasoned Endace Implementation & Sustainment Engineer to architect, deploy, integrate, and operate Endace packet capture, monitoring, and network ... strategies. This role owns the end-to-end lifecycle for Endace systems -including design, installation, configuration, maintenance, and long-term optimization-while integrating… more
    ENS Solutions (12/13/25)
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  • Cyber Asset Attack Surface Management Deployment…

    ENS Solutions (Washington, DC)
    …solutions for hybrid cloud environments + 3+ years of experience performing systems administration in Windows, Linux , or VMware environments, including ... and manage CAASM solution deployment in accordance with the systems engineering lifecycle (SELC). Monitor, design, and onboard new...of APIs with their usage for data integration + Active TS/SCI clearance; willingness to take a polygraph exam… more
    ENS Solutions (12/13/25)
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  • Splunk Engineer - Active TS/SCI…

    ENS Solutions (Washington, DC)
    …Manager (ESM), Network Security Manager (NSM), NetFlow, and/or Intrusion Detection Systems (IDS) to monitor, detect, and analyze threats. You'll perform hands-on ... in a Splunk environment + Experience with Splunk performing systems administration, including performing installation, configuration, monitoring system performance… more
    ENS Solutions (09/26/25)
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