• 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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  • 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

    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 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 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) (Arlington, 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 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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  • 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 Engineer, AWS Managed…

    Amazon (Herndon, VA)
    …and efficiency to operate AWS Regions. Amazon is looking for highly motivated Senior Systems Engineers who can balance the day-to-day operations of AWS' ... into, operating, and improving some of the largest software systems humanity has ever built? Do the challenges that...Site Reliability Engineering (SRE) or Enterprise Production experience in Windows / Linux or similar environments -… more
    Amazon (12/09/25)
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