• Sr . Linux / Windows

    Lockheed Martin (King Of Prussia, PA)
    Windows system administration, including installing, patching, troubleshooting and hardening Linux and Windows operating systems \(both bare\-metal and ... have an active Top Secret Clearance **Desired Skills:** * Windows and Linux OS patching/security hardening in...be required within 6 months of start\) * CompTIA Linux \+ or Red Hat Certified Systems Administrator… more
    Lockheed Martin (11/14/25)
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  • Sr . Systems Administrator - Secret…

    Lockheed Martin (King Of Prussia, PA)
    …all of the client/server/storage/network devices \-Patch and harden Windows and Linux \(Red Hat\) and networking systems with Security personnel to protect ... clearance is required . Extensive familiarity with system administration for Linux \(RHEL\) and Windows operating systems . Proven ability to install, secure… more
    Lockheed Martin (10/29/25)
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  • Sr . Engineer - DataDog SIEM | Remote, USA

    Optiv (King Of Prussia, PA)
    …HBSS, NSA, CEH, Cisco Security, Security +, or other security certifications). + Knowledge of Linux and Windows Operating Systems . + An understanding of a ... Sr . Engineer will work closely with other Engineers, Senior Engineers, Solution Architects, and clients to complete high...+ Serve as a primary responder for AFC customer systems , taking ownership of client configuration issues and tracking… more
    Optiv (12/17/25)
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  • Linux Information Systems Analyst,…

    Lockheed Martin (King Of Prussia, PA)
    …in our King of Prussia, PA secure facility\. **Your Mission:** As a Linux Information Systems Analyst, your responsibilities will include: * Technical Support: ... * US Citizenship required at this facility **Desired Skills:** * Experience with Windows Server Operating Systems * Experience with Active Directory \(AD\) *… more
    Lockheed Martin (11/26/25)
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  • IT Systems Engineer, Sr / Top Secret…

    Lockheed Martin (King Of Prussia, PA)
    …areas located in Valley Forge, Pennsylvania\. Deep expertise in technical leadership, Linux server, Windows server, Storage and network administration are ... This IT professional will ensure that the Space IT systems are managed, controlled and compliant with the Security...50 lbs\. independently\. \- Deep expertise in technical leadership, Linux server, Windows server, storage and network… more
    Lockheed Martin (11/07/25)
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  • Sr . Systems Engineer

    Lockheed Martin (King Of Prussia, PA)
    …operate with other system hardware and software components\. \-Experience in Linux operating systems \. \-Experience with Virtual machine setup, management ... while maintaining the technical requirements of the strategic deterrence\. As a Systems Engineer within the program Production Integrated Product Team \(IPT\), this… more
    Lockheed Martin (11/14/25)
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  • Software Engineer Sr

    Lockheed Martin (King Of Prussia, PA)
    …cloud computing design, and security principles Experienced working in both Windows and Linux platforms Demonstrated proficiency in software development ... ground software solutions, specializing in the development of mission\-critical systems for U\.S\. government agencies, commercial enterprises, and international… more
    Lockheed Martin (11/06/25)
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  • Senior Systems Engineer

    Insight Global (Horsham, PA)
    Systems Engineer doing patching & vulnerability management * Experience with Operating systems (OS): Linux /Unix or Windows * Experience with ... modern practices. You will also support mixed operating system estates-including Linux /Unix and Windows -across commercial business units, while partnering with… more
    Insight Global (12/12/25)
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  • OT/IT Systems Analyst ( Senior )…

    Talen Energy (Allentown, PA)
    …with OT infrastructure and cybersecurity controls including: + Servers ( Windows / Linux ), virtualization (VMware/Proxmox), and backup (Commvault/Veeam). + Network ... Talen Energy is seeking an **OT/** **IT** **Analyst or Sr . Analyst** **-** **Operations** **& Compliance** who will be responsible for ensuring the secure,… more
    Talen Energy (12/18/25)
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  • Senior Cloud Engineer

    Insight Global (Horsham, PA)
    …DevOps (ADO) * Experience with Containerization using Kubernetes * Experience with Operating systems (OS): Linux /Unix or Windows * Cloud networking ... Public Trust Security clearance strongly preferred (last 12 months) to accelerate onboarding. * Comfortable pairing with and coaching existing Systems Engineers more
    Insight Global (12/12/25)
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