• Linux System Administrator , Senior

    BOOZ, ALLEN & HAMILTON, INC. (Columbia, MD)
    Linux System Administrator , Senior The Opportunity: Your technical expertise makes you the team hero, solving one problem after another. What if you could use those ... Defense? We're looking for a Cross Domain Platform System Administrator to help us design, deploy, and maintain Cross...Experience with GIT + Experience managing virtual machines and VMware ESXi + Knowledge of Linux firewalls, Linux RPMs,… more
    BOOZ, ALLEN & HAMILTON, INC. (07/25/25)
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  • Principal System Administrator

    DCCA (Annapolis Junction, MD)
    Principal System Administrator Location Annapolis Junction, MD Job Code 2270 # of Openings 1 Apply Now ... compensation and benefits package. Visit our website at: www.dcca.com Principal System Administrator Candidate must have an active TS/SCI w/Poly For over 40 years,… more
    DCCA (05/19/25)
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  • System Administrator 2

    M. C. Dean (Annapolis Junction, MD)
    …seeking a **System Administrator 2** to join our **Security and Electronic Systems (SES)** business Unit. As part of **(SES)** Strategic Business Unit you will ... engineer and deploy automated, secure and resilient power and technology systems ; and deliver the management platforms essential for long-term system sustainability.… more
    M. C. Dean (07/15/25)
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  • System Administrator

    ManTech (Hanover, MD)
    MANTECH seeks a motivated, career-oriented **System Administrator ** to join our team in **Hanover, Maryland** . **Responsibilities include, but are not limited to:** ... support for implementation, troubleshooting, and maintenance of Information Technology (IT) systems + Manage IT system infrastructure and processes related to those… more
    ManTech (08/08/25)
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  • System Administrator IV - HPC

    Leidos (Annapolis Junction, MD)
    …Sector at Leidos currently has an immediate need for an experienced **System Administrator - IV HPC** for a new customer on a strategic High-Performance Computing ... (HPC) program. The Senior System Administrator will need to be a self-starter with excellent...performance of data center services, physical and virtual server-class systems , and storage. Lead medium-to-large scale projects, design and… more
    Leidos (07/03/25)
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  • Linux System Administrator

    ManTech (Laurel, MD)
    **Mantech** seeks a motivated, career and customer-oriented **Linux** **System Administrator ** to join our team in **Laurel, MD.** You will be part of a dedicated ... are not limited to:** + Configure and manage Linux operating systems . Installs/loads operating system software, troubleshoots maintains integrity and configures… more
    ManTech (07/23/25)
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  • Firewall Administrator & InfoSec Engineer…

    Lockheed Martin (Bethesda, MD)
    …Security \(CIS\) organization at Lockheed Martin \(LM\) protects company assets and systems from cyber threats by developing and implementing a robust security ... the Boundary Transformation and Secure Transport team is hiring a mid\-career Firewall Administrator / InfoSec Engineer\. **What You Will Be Doing:** In this role,… more
    Lockheed Martin (07/16/25)
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  • Linux System Administrator , Senior…

    GovCIO (Annapolis, MD)
    **Overview** GovCIO is hiring a Windows and Linux System Administrator (Senior) to support Veterans Affairs operational needs. The role requires AWS, Windows, and ... health record modernization. + Establish and maintain smooth operation of computer systems , including operating systems , software, and hardware, in both… more
    GovCIO (07/25/25)
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  • System Administrator - Active Secret…

    ENS Solutions (MD)
    This role is contingent upon Contract Award The System Administrator supports secure and resilient operations of PKI infrastructure and associated systems for an ... for DoD PKI inspections. Key Responsibilities: + Maintain and monitor systems supporting PKI services, including Certificate Authorities (CAs), OCSP responders, Key… more
    ENS Solutions (08/01/25)
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  • Senior System Administrator

    Synergy ECP (Columbia, MD)
    …services. Experience with: o Configuration and Maintenance of Virtual Machines ? VCenter/ VMWare o Linux and Windows operating systems ? CentOS, RedHat, ... Senior System Administrator Columbia, MD (http://maps.google.com/maps?q=Columbia+MD+USA+21046) Description Company Description: Synergy ECP is a Service Disabled… more
    Synergy ECP (07/16/25)
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