• 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 ... Configure, manage, secure, and troubleshoot Juniper and Cisco switches. + Perform systems administration on Windows and Linux platforms (updates, security,… more
    DirectEmployers Association (09/30/25)
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  • Senior Linux Systems

    UIC Government Services and the Bowhead Family of Companies (Dahlgren, VA)
    **Overview** SENIOR LINUX SYSTEMS ADMINISTRATOR : Bowhead seeks a Senior Linux Systems Administrator to join our team in Dahlgren, VA. The ... Senior Linux Administrator is responsible...and management of servers, end-user workstations, and potentially clustered systems operating in both unclassified and classified network environments.… more
    UIC Government Services and the Bowhead Family of Companies (10/25/25)
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  • Senior Linux Systems

    ManTech (Chantilly, VA)
    **MANTECH seeks a motivated, mission-focused Senior Linux Systems Administrator to join our team in Chantilly, VA** This opportunity allows you to become ... to drive impactful solutions in support of critical government missions. As a ** Senior Linux Systems Administrator ,** you will help maintain and enhance… more
    ManTech (08/30/25)
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  • Senior Linux /Unix Systems

    SMX (Dahlgren, VA)
    Senior Linux /Unix Systems Administrator (4419)at SMX(View all jobs) (https://www.smxtech.com/careers/) Dahlgren, VA SMX is looking for a highly motivated ... Senior Linux /Unix Administrator to join...Warfare Center Dahlgren Division (NSWCDD) in Dahlgren, VA. The Senior Systems Administrator will work… more
    SMX (10/18/25)
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  • Senior Systems Administrator

    TekSynap (Dahlgren, VA)
    …is seeking a **S** **enior S** **ystem** ** Administrator (Unix/ Linux ).** The Senior Systems Administrator (Unix/ Linux ) serves as Key Personnel ... for Unix/ Linux environments within the Navy enterprise. The Senior Systems Administratoris responsible forconfiguration, optimization, and sustainment of… more
    TekSynap (10/31/25)
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  • Linux Engineer

    Arena Technical Resources, LLC (Chantilly, VA)
    …current CI Polygraph required The Systems Engineering team is seeking a driven Senior Linux /UNIX Systems Administrator that is highly technical and ... SUCCEED Basic Qualifications: - Ten (10) years' experience as aLinux/UNIX Systems Administrator supporting complex, multi-site enterprise-scale environments -… more
    Arena Technical Resources, LLC (10/25/25)
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  • Senior Systems Administrator

    V2X (Springfield, VA)
    …complex challenges with integrity, respect, responsibility, and professionalism. We are hiring a Senior Systems Administrator II Generalist - active TS/SCI ... and the ability to obtain and maintain a Counterintelligence (CI) Polygraph. The Senior Systems Administrator II supports the information technology (IT)… more
    V2X (11/04/25)
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  • Senior Systems Administrator

    Leidos (Chantilly, VA)
    …experience. Additional experience in lieu of degree + Must be an expert in using Linux -based operating systems + Must have strong Bash skills + Must have ... **Description** Leidos is seeking a System Administrator for a technical development program supporting the...via an LDAP interface to hundreds of various Sponsor systems Required Qualifications + Active TS/SCI with Polygraph +… more
    Leidos (10/10/25)
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  • Senior IT Systems

    ManTech (Chantilly, VA)
    **MANTECH** seeks a motivated, career and customer-oriented ** Senior IT Systems Administrator ** to join our team in **Chantilly, VA.** **Responsibilities ... to obtain one within 180 days. + Experience with Windows and Linux operating systems . + Experience providing help-desk end-user support for common desktop and… more
    ManTech (08/20/25)
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  • Senior IT Systems

    ManTech (Chantilly, VA)
    **MANTECH** seeks a motivated, career and customer-oriented ** Senior IT Systems Administrator ** to join our team in **Chantilly, VA.** **Responsibilities ... 180 days. + System Experience: Experience with both Windows and Linux operating systems . + End-User Support: Experience providing help-desk support for common… more
    ManTech (08/20/25)
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  • Senior Systems Administrator

    SimIS Inc. (Dahlgren, VA)
    …the listed position and is contingent upon award. Job Description: SimIS, Inc. seeks a Senior Systems Engineer to lead systems engineering activities for a ... position provides technical leadership for complex simulation and training systems including requirements analysis, system integration, verification and validation,… more
    SimIS Inc. (09/22/25)
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  • Senior System Administrator (C)

    SimIS Inc. (Dahlgren, VA)
    …and importance of others (work and win as a team). SimIS Inc seeks a Senior System Administrator to provide combat system simulation support to the Warfare ... network administration activities. + Experience in Microsoft Windows computer operating systems , LINUX operating systems , CISCO Systems , computer… more
    SimIS Inc. (08/07/25)
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  • Senior Database Administrator

    ManTech (Chantilly, VA)
    MANTECH seeks a motivated, career and customer-oriented ** Senior Database Administrator ** to join our Data and AI Practice. This position requires full-time ... demands technical expertise, strategic thinking, and hands-on experience with Oracle-based systems in high-volume environments. If you thrive in a fast-paced,… more
    ManTech (08/21/25)
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  • Systems Administrator Principal

    General Dynamics Information Technology (Fort Belvoir, VA)
    …part in improving how agencies operate. At GDIT, people are our differentiator. As a Systems Administrator Senior you will help ensure today is safe and ... Citizenship Required:** Yes **Job Description:** Transform technology into opportunity as a Systems Administrator Advisor with GDIT. A career in enterprise IT… more
    General Dynamics Information Technology (09/30/25)
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  • Systems Administrator (Multiple…

    Noblis (Chantilly, VA)
    Responsibilities As a Systems Administrator , you will be responsible for installing, configuring, and maintaining operating system workstations and servers, ... experience in systems administration + Proficiency with: + Windows and Linux operating systems + Windows Active Directory + Virtualization technologies… more
    Noblis (09/03/25)
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  • System Administrator

    Assertive Professionals (Chantilly, VA)
    …change requests; support for implementation, troubleshooting and maintenance of Unix/ Linux systems ; Perform technical evaluations, analysis, and troubleshooting ... System Administrator About the Organization Established in 2015,AssertiveProfessionals(AP), is...servers. Manage day-to-day operations, monitoring and problem resolution of Linux systems . Activities include installation and maintenance… more
    Assertive Professionals (10/09/25)
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  • Senior IT Specialist

    TekSynap (Springfield, VA)
    …create scripts in Python or other languages. + Familiarity with various operating systems and platforms (MacOS, Ubuntu and CentOS Linux ). + Resourcefulness and ... supports the Service Desk [duty hours 9:00am-6:00pm] and reports to the Service desk Administrator . The position can execute all tier 1 and 2 service desk tasks and… more
    TekSynap (08/21/25)
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  • Oracle DBA, Senior

    General Dynamics Information Technology (Fort Belvoir, VA)
    …General Dynamics Information Technology (GDIT) seeks a highly motivated and experienced ** Senior Database Administrator ** to support a Defense Threat Reduction ... of Oracle Data Guard Replication and Recovery Manager. Experience with Linux and Windows based operating systems administration and troubleshooting.… more
    General Dynamics Information Technology (08/20/25)
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  • OCONUS Field Engineer - TS/SCI Polygraph Required

    Leidos (Chantilly, VA)
    …team environment. The ideal candidate will have prior experience as either a systems engineer or systems administrator . Prior OCONUS experience and ... **Description** We are seeking mid to senior field engineers to join our international team...hands-on experience in most of the following areas: + Systems Engineering/Administration + Diagnosing and resolving software, hardware, and… more
    Leidos (08/08/25)
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  • Cyber Security Specialist 4

    M. C. Dean (Springfield, VA)
    …telecommunications, life safety, automation and controls, audiovisual, and IT systems . Headquarters in Tysons, Virginia, MC Dean delivers resilient, secure, ... innovative power and technology solutions through engineering expertise and smart systems integration. **Why Join Us?** Our people are passionate about engineering… more
    M. C. Dean (10/10/25)
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