• Senior Linux & Windows

    General Dynamics Information Technology (Fairfax, VA)
    …**Experience:** 5 + years of related experience **Job Description:** As a ** Senior ** ** Linux & Windows Systems Engineer** , you will support the Hosting ... for configuration. + Act as a Senior Systems Engineer to lead troubleshooting with Linux ...needed. **Required Skills** + Bachelor's degree and 5+years of Linux and Windows systems engineering… more
    General Dynamics Information Technology (01/10/26)
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  • Senior Linux Systems

    Leidos (Arlington, VA)
    …+ Training (DISA-US1384 DCWF Linux System Administrator / DISA-US1390 DCWF Windows Systems Administrator). + 3+ years deploying Unix in secured environments, ... The Leidos Digital Modernization Sector is seeking a **_Senior Linux Systems Administrator_** in support of the...and take ownership of our critical Red Hat Enterprise Linux environment. As a Senior System Administrator,… more
    Leidos (12/20/25)
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  • Senior Linux Administrator

    Leidos (Fort Belvoir, VA)
    **Description** The DTRA program at Leidos is seeking a ** Senior Linux Administrator** in Fort Belvoir, VA to support the DTRA I3TS Infrastructure Services team ... entire service lifecycle from design through development to production, building and deploying Linux based systems in a virtual environment. Candidate should be… more
    Leidos (12/30/25)
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  • Systems Administrator II Generalist Sr…

    V2X (Springfield, VA)
    …integrity, respect, responsibility, and professionalism. We are hiring a Senior Systems Administrator II Generalist - Windows Server - active TS/SCI ... Microsoft Windows Server platforms, but there are also Linux distributions as well. + The Senior Systems Administrator II shall support the mid-level… more
    V2X (11/15/25)
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  • Senior Linux System Administrator

    Black Bear Technology Solutions, LLC (Adelphi, MD)
    Senior Linux System Administrator Clearance Required: Top Secret or Secret Clearance Locations: Adelphi, MD (Onsite) Position Overview: The Senior Linux ... oversees the installation, configuration, maintenance, and integrity of computing systems and software. The role involves planning, ensuring long-term system… more
    Black Bear Technology Solutions, LLC (11/21/25)
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  • Sr Citrix/ Windows Engineer

    General Dynamics Information Technology (Chantilly, VA)
    …What you need: Experience: 8-10 years of hands-on experience as a Windows Systems Administrator/Engineer. Proven expertise managing Windows Workstations ... of related experience **US Citizenship Required:** Yes **Job Description:** Senior Citrix/ Windows Engineer We are seeking a...strong problem-solving skills and a passion for stable, secure systems , we want to hear from you. What you… more
    General Dynamics Information Technology (12/29/25)
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  • Senior Systems Administrator

    General Dynamics Information Technology (Washington, DC)
    …teams. WHAT YOU WILL DO: Duties and Responsibilities: + Enterprise Authorization: Integrate Linux Systems into a primary Windows environment (workstations & ... of related experience **US Citizenship Required:** Yes **Job Description:** Senior Systems Administrator Own your opportunity to...and Single Sign On. + Enterprise Provisioning: Configure new Linux and Windows systems for… more
    General Dynamics Information Technology (01/05/26)
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  • Senior Systems Administrator

    BAE Systems (Washington, DC)
    …the infrastructure that powers networks and operating systems such as UNIX, Linux , and Windows . + Install and configure hardware and software, manage user ... and resolve issues. + Experience with SQL scripting, Java, Windows Server, Linux , Oracle, Tomcat, data backups,...be available based on position level and/or job specifics. ** Senior Systems Administrator** **118971BR** EEO Career Site… more
    BAE Systems (12/04/25)
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  • Senior Systems Administrator

    Chenega Corporation (Arlington, VA)
    …school diploma or GED equivalent + 5+ years of relevant experience. + Experience with Windows and Linux operating systems + DOD IAT Level II Certification ... **Req ID:** 38512 **Summary** ** Senior Systems Administrator** **Arlington, VA** Are...**Knowledge, Skills, and Abilities:** + Proven experience with both Windows and Linux operating systems ,… more
    Chenega Corporation (12/10/25)
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  • Senior Platform Engineer

    BAE Systems (Sterling, VA)
    …structures suitable for AI applications. This program delivers engineering services for Linux and Windows cloud-based infrastructure as well as sophisticated ... **Job Description** At BAE Systems , we promote a strong, collaborative culture and...group environment + Work across infrastructure that contains both Linux and Windows + Communicate effectively with… more
    BAE Systems (12/20/25)
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  • Lead Senior Systems Administrator

    ManTech (Chantilly, VA)
    **MANTECH** seeks a motivated, mission-oriented ** Senior Systems Administrator** to join our team in **Chantilly, VA.** As the Lead Senior Systems ... + Lead and supervise a team of system administrators ( Windows / Linux /VMWare) and IT support staff. + Design,...or high school diploma/GED and 13 years of relevant systems administration experience with 3 + years in a… more
    ManTech (12/19/25)
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  • Senior DevSecOps Engineer

    BAE Systems (Sterling, VA)
    …structures suitable for AI applications. This program delivers engineering services for Linux and Windows cloud-based infrastructure as well as sophisticated ... **Job Description** We are looking for a Senior DevSecOps Engineer to join our visible technical...for applications + Work across infrastructure that contains both Linux and Windows + Communicate effectively with… more
    BAE Systems (10/31/25)
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  • Senior ServiceNow Developer

    BAE Systems (Sterling, VA)
    …structures suitable for AI applications. This program delivers engineering services for Linux and Windows cloud-based infrastructure as well as sophisticated ... **Job Description** We are looking for a Senior level ServiceNow Developer to join our visible...testing plans + Work across infrastructure that contains both Linux and Windows + Communicate effectively with… more
    BAE Systems (10/31/25)
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  • Senior System Cloud Administrator

    Insight Global (Herndon, VA)
    Senior Systems Cloud Administrator with strong experience in Microsoft Azure, Windows Server administration, and Linux systems within hybrid cloud ... Linux environments * Provide hands on support and diagnosis for Linux systems , including troubleshooting OS issues, performance problems, service failures,… more
    Insight Global (12/04/25)
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  • Senior Computer Network Defense (CND)…

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

    Infinity Systems Engineering (Alexandria, VA)
    …+ Configure, manage, secure, and troubleshoot Juniper and Cisco switches. + Perform systems administration on Windows and Linux platforms (updates, security, ... with us! Job Summary: We are seeking a skilled Systems Administrator/Network Engineer to join our mission-driven team. This...configuration (Cisco experience is a plus) + Proficient in Linux and Windows system administration + Active… more
    Infinity Systems Engineering (01/03/26)
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  • Senior Systems Engineer

    Syms Strategic Group, LLC (SSG) (Vienna, VA)
    …of managing and maintaining large-scale production systems + Strong proficiency in Linux /Unix and Windows operating systems + Experience with system ... Syms Strategic Group (SSG) is seeking a talented Systems Engineer ( Senior ) Location: Remote Department: Veterans Affairs (VA) Type: Full Time Min. Experience:… more
    Syms Strategic Group, LLC (SSG) (01/07/26)
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  • Cyber Developer Senior - VR

    BAE Systems (Chantilly, VA)
    …Rust is preferred. Experience conducting VR for applications in Windows , Linux , MacOS, Android, iOS, and embedded IoT systems . **Pay Information** Full-Time ... **Job Description** This position is for a senior level, experienced vulnerability researcher that will identify,...and test for security weaknesses in software, hardware, and systems to understand how they can be exploited by… more
    BAE Systems (01/09/26)
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  • Senior Information Systems Security…

    Steampunk (Mclean, VA)
    **Overview** **Steampunk wants** you to be a ** Senior Information Systems Security Officer (ISSO)** on our team to support a government customer on site in ... assessment, and analysis + Specialized knowledge and experience with the operating system ( Windows and/or Linux ) and network (ie, Local Area Networks [LAN] and… more
    Steampunk (12/13/25)
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  • Senior Systems Administrator

    UIC Government Services and the Bowhead Family of Companies (Arlington, VA)
    **Overview** SENIOR SYSTEMS ADMINISTRATOR (NAUT): Bowhead seeks a Senior Systems Administrator to support our customer on the Nautical contract in the ... IL4/IL5 cloud environment administration and compliance Technical Skills: + Proficiency in Linux /Unix and Windows server administration in cloud environments +… more
    UIC Government Services and the Bowhead Family of Companies (01/06/26)
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