• Systems Administrator III

    Sierra Nevada Company, LLC (Shalimar, FL)
    …cyber. **Responsibilities:** + Administer and support daily operations of Windows and Linux servers, and networking devices ensuring system reliability, data ... computers + Communication and customer interface skills + Thorough understanding of system level maintenance of networks and communications systems + Related… more
    Sierra Nevada Company, LLC (05/14/25)
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  • Systems Administrator SIPR (Onsite)

    RTX Corporation (Largo, FL)
    …and grow your technical competence in multiple areas (such as Windows, Linux , virtualization, User Authentication, DNS, NFS, system imaging/build automation). + ... for a security clearance​ **Security Clearance:** DoD Clearance: Top Secret This is a great opportunity for job seekers...opportunity for job seekers with experience in Classified IT Systems Administration and the defense industry to join our… more
    RTX Corporation (07/22/25)
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  • System Administrator

    Lockheed Martin (Hurlburt Field, FL)
    …to our customers around the world\. **THE WORK** Lockheed Martin is seeking a System Administrator to join our Information Technology team supporting the Air ... with a multifunctional team of experts leading the way in flight training system sustainment and development\. In this fast\-paced environment, you'll draw on your… more
    Lockheed Martin (07/12/25)
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  • Systems Administrator

    ISYS Technologies (Eglin AFB, FL)
    …. + Install, configure, and support an organization's servers and workstations and Internet systems or a segment of a network system . Monitor servers and ... Minimum Clearance Required Top Secret SCI Responsibilities I2X Technologies is a reputable...Information Assurance offices. + General understanding of multiple operating systems to include Windows and Linux variants.… more
    ISYS Technologies (07/24/25)
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  • Journeyman Systems Administrator

    ManTech (Doral, FL)
    **MANTECH** seeks a motivated, career and customer-oriented **Journeyman Systems Administrator ** to join our team in **Doral, FL** . **Responsibilities include ... to:** + Manages the day-to-day administration and maintenance of computer systems , network servers, and virtualization technologies, ensuring reliable operation and… more
    ManTech (07/22/25)
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  • Senior Specialist, Cyber Infrastructure…

    L3Harris (Melbourne, FL)
    …land, sea and cyber domains in the interest of national security. Job Title: Systems Administrator ( Linux /Windows) Job Code: 23569 Job Location: Melbourne, ... FL Job Schedule: 9/80 Job Description: Performs technical planning, system integration, verification and validation, cost and risk and supportability and… more
    L3Harris (08/08/25)
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  • Full Stack Administrator

    Lockheed Martin (Cape Canaveral, FL)
    …Rancher, Kubernetes, Nomad, AWS ECS, etc\.\) * Red Hat Linux Administration \( system installation/configuration, Kickstart, KVM Virtualization, RHV/ovirt ... position requires the ability to obtain a DOD Top Secret clearance, and maintain it throughout the life span...Lockheed Martin is actively seeking a senior\-level private cloud administrator to support our Space business area unclassified &… more
    Lockheed Martin (07/12/25)
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  • Network Security Administrator

    TekSynap (Pensacola, FL)
    …IT experience. + Must be **trained and certified on the specific Operating System or Computing Environment** theymaintain(eg, Windows Server, Linux , Cisco) + IAT ... **Responsibilities & Qualifications** The **Network Security Administrator ** is responsible fornetwork boundary protection, cybersecurity posture, and accreditation… more
    TekSynap (07/09/25)
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  • Mult Function Info Systems , MPE SME…

    Lockheed Martin (Jacksonville, FL)
    …Applying updates, anti\-virus/anti\-spyware updates, and patch updates \* Red Hat Enterprise Linux System Administrator \* Installing Oracle Critical ... by assuring the integrity of data stored within the system by maintaining the internal databases and applications\. The...Administrator and users on the ALIS / MPE systems as needed \* Perform COMSEC CRO duties and… more
    Lockheed Martin (07/27/25)
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  • ServiceNow Systems Engineer

    General Dynamics Information Technology (Macdill AFB, FL)
    …Application Development,ServiceNow Platform, Systems Management **Certifications:** ServiceNOW Certified System Administrator - ServiceNow, Secuirty + - ... Skills: + Applicable DoD 8140 or DoD 8570 Certification + ServiceNow Certified System Administrator certification and/or ServiceNow Certified System Engineer… more
    General Dynamics Information Technology (07/11/25)
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