• Senior M365 Administrator

    PSEG Long Island (Bethpage, NY)
    …and overall health of a variety of cyber security tools within a Microsoft Windows, Linux and UNIX server environments. This role will manage and support M365 ... techniques. + Working knowledge and experience in supporting Microsoft Windows Server Operating Systems, Directory Services (AD), MS PKI (Certificates), DFS, and… more
    PSEG Long Island (12/31/25)
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  • Senior IT Systems Administrator

    ManTech (Chantilly, VA)
    **MANTECH** seeks a motivated, career and customer-oriented ** Senior IT Systems Administrator ** to join our team in **Chantilly, VA.** **Responsibilities include ... ability to obtain one within 180 days. + Experience with Windows and Linux operating systems. + Experience providing help-desk end-user support for common desktop… more
    ManTech (12/03/25)
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  • Senior System Administrator

    Synergy ECP (Columbia, MD)
    Senior System Administrator Columbia, MD (http://maps.google.com/maps?q=Columbia+MD+USA+21046) Description Company Description: Synergy ECP is a Service Disabled ... Configuration and Maintenance of Virtual Machines ? VCenter/VMWare o Linux and Windows operating systems ? CentOS, RedHat, Windows...Windows operating systems ? CentOS, RedHat, Windows 10, Window Server o DNS Experience o Active Directory (AD) o… more
    Synergy ECP (10/15/25)
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  • System Administrator

    Assertive Professionals (Chantilly, VA)
    System Administrator About the Organization Established in 2015,AssertiveProfessionals(AP), is anEconomically Disadvantaged Woman Owned Small Business ... with Polygraph Timeline Pipeline Description Assertive Professionalsis seeking aSystem Administrator with Polygraph supporting ourNational Security Customer in Chantilly,… more
    Assertive Professionals (01/07/26)
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  • Systems Administrator

    General Dynamics Information Technology (Sterling, VA)
    …years of related experience **US Citizenship Required:** Yes **Job Description:** SYSTEMS ADMINISTRATOR SENIOR Advance how our customers operate while you ... advance your career. Join GDIT as a Systems Administrator Senior and build an impactful career...Service; Documentation; System Installation and Maintenance; Windows 10/11; Windows Server ; Linux (RHEL, Debian); Proxmox VE; Backup… more
    General Dynamics Information Technology (12/18/25)
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  • Systems Administrator

    Hyundai Autoever America (San Diego, CA)
    …include but not necessarily be limited to the following: + Administer and maintain Windows Server and Linux systems; including strong command of Linux and ... administration experience in a medium-to-enterprise environment. + Strong command of both Linux (RHEL/Ubuntu) and Windows Server operating systems. + Hands-on… more
    Hyundai Autoever America (12/17/25)
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  • Sr. IAM Administrator (IT@JH Enterprise…

    Johns Hopkins University (Baltimore, MD)
    …Server Administration + Windows Server Administration + Linux Server Administration Classified Title: Sr. IAM Administrator Job Posting Title (Working ... independent decision-making and leadership in IAM practices. Furthermore, the Senior IAM Administrator will mentor and guide IAM Administrators and IAM Analyst,… more
    Johns Hopkins University (11/20/25)
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  • System Administrator VII

    Chenega Corporation (Albuquerque, NM)
    …technology capabilities, to ensure functional optimization in their business. The System Administrator VII will perform system administration for Linux and ... System Administrator VII Albuquerque, NM Join our Talent Network...an onsite system and/or a remote site. + Monitor server application for availability, latency, and gateway queuing and… more
    Chenega Corporation (01/06/26)
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  • Research Systems Administrator

    Boston College (Chestnut Hill, MA)
    …computing hardware based within departments and institutes. This position primarily provides Linux server administration for the HPC cluster. Additionally this ... abreast of emerging trends and solutions. Responsibilities/Competencies: - Provides Linux server and some Windows server...a full remote option; 2-3 days in office required): Senior Research Systems Administrator : Minimum five years… more
    Boston College (12/30/25)
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  • Windows Systems Administrator 4

    L3Harris (Greenville, TX)
    …sea and cyber domains in the interest of national security. Job Title: Senior Specialist, Windows System Administrator Job Code: 32527 Job Location: Greenville, ... 9/80 Job Description: This position is for a Windows Systems Administrator supporting Software Development Engineering teams. The position requires the ability… more
    L3Harris (01/07/26)
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