• Senior Linux - Windows…

    ICF (Reston, VA)
    …. **Key Responsibilities:** + Administer and support both Linux and Windows operating systems , ensuring optimal system performance and adherence ... We are seeking a highly skilled, customer-facing Systems Administrator to support Linux and Windows environments for a critical Treasury program. The ideal… more
    ICF (10/02/25)
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  • Senior Linux Systems…

    Leidos (Columbia, MD)
    **Description** **Leidos** has a new and exciting opportunity for a ** Senior Linux Systems Administrator** in our **National Security Sector's (NSS) Cyber & ... will involve configuring and managing UNIX and Windows operating systems , troubleshooting, maintaining network integrity, and enhancing system performance.… more
    Leidos (09/26/25)
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  • Senior Linux System…

    ManTech (Fort Meade, MD)
    ManTech seeks a ** Senior Linux System Administrator**...and system planning. + Configure and manage Linux and Windows operating systems ; ... role, you will provide support for implementation, troubleshooting, and maintenance of IT systems , as well as manage IT system infrastructure and any processes… more
    ManTech (07/15/25)
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  • Senior Linux System…

    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 ... standards. + Install, configure, and maintain software and operating systems . + Implement operating system enhancements for...DoD 8750 and 8140 compliance requirements Technical Environment: + Windows Server + MCEM + MAC OS + RHEL,… more
    Black Bear Technology Solutions, LLC (08/23/25)
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  • Systems Engineer SME- Linux - Active…

    General Dynamics Information Technology (Washington, DC)
    …ensure today is safe and tomorrow is smarter. Our work depends on a skilled Linux Senior Principal Systems Engineer joining our team to bring professionalism ... 15 + years of related experience **US Citizenship Required:** Yes **Job Description:** ** Senior Principal Systems Engineer - Linux ** Design, deploy,… more
    General Dynamics Information Technology (07/07/25)
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  • Senior Windows Engineer- Hybrid…

    Motion Recruitment Partners (Arlington, VA)
    Senior Windows Engineer- Hybrid Reston, VA Arlington, Virginia **Hybrid** Contract $70/hr - $80/hr Senior Windows Engineer This hands-on role involves ... + Act as a Subject Matter Expert for Cloud Operations, Cybersecurity, and Systems Administration teams. + Lead system analysis and infrastructure design… more
    Motion Recruitment Partners (08/15/25)
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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 & ... Directory with PKI certificates and Single Sign On. + Enterprise Provisioning: Configure new Linux and Windows systems for customer use and ensuring that… more
    General Dynamics Information Technology (09/16/25)
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  • Senior High Performance Computing (HPC)…

    BAE Systems (Annapolis Junction, MD)
    …a large client-server based IT enterprise in installation, configuration, and networking of Linux and Windows based platforms. + Oversee servers running Red Hat, ... (iSCSI, SAD, FC, TCP/IP, etc.) + Advanced Red Hat/CentOS and Microsoft Windows Operating System (including Group Policy management) + Microsoft Exchange… more
    BAE Systems (09/09/25)
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  • Senior Cloud Systems Administrator

    BAE Systems (Sterling, VA)
    **Job Description** We are looking for a highly skilled Senior Cloud Systems Administrator to join our visible technical program driving the Model Based ... structures suitable for AI applications. This program delivers engineering services for Linux and Windows cloud-based infrastructure as well as sophisticated… more
    BAE Systems (09/09/25)
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  • Senior Systems Administrator

    Leidos (Vienna, VA)
    …+ Provide support in information security system requirements and design applicable to Linux hosts + Manage Linux systems using Puppet or other config ... The National Security Sector at Leidos is seeking a ** Senior System Administrator** to join a dynamic...and Access management + Experience in Database Administration and system monitoring, including Linux command-based troubleshooting +… more
    Leidos (07/29/25)
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