• Senior Systems Administrator

    CACI International (Annapolis Junction, MD)
    …Local * * * **The Opportunity:** CACI is seeking a Senior Linux Systems Administrator to provide support for implementation, troubleshooting and maintenance of ... installs/loads operating system software, troubleshoots, maintains integrity and configures network components along with implementing operating systems enhancements to… more
    CACI International (01/07/26)
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  • R&D Systems Engineer

    Sealing Technologies (Columbia, MD)
    …devices. + Support the development of basic tools to generate, capture, and analyze network traffic using monitoring frameworks. + Learn to use network analysis ... support pre-existing-built environments using existing documentation. + Basic knowledge of Linux , command-line usage, and system fundamentals. + Familiarity with… more
    Sealing Technologies (12/10/25)
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  • Secret Vulnerability Penetration Tester

    Insight Global (Aberdeen Proving Ground, MD)
    network and application-level vulnerabilities * Intermediate knowledge of Linux and Windows internals * Strong understanding of networking protocols, hardware, ... and exploits using tools like Wireshark and Burp Suite, interpreting network traffic, and performing penetration testing in secure SCIF lab environments.… more
    Insight Global (12/07/25)
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  • System Administrator (Level 4)

    Kaizen Approach, Inc (Annapolis Junction, MD)
    …oversee processes that ensure optimal performance and reliability across client, server, storage, network , and mobile systems. You will provide Tier 1 through Tier 3 ... and internal customers. This position involves configuring and managing UNIX, Linux , and Windows operating systems, installing and maintaining software, and… more
    Kaizen Approach, Inc (11/11/25)
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  • ADC Engineer I, Amazon Dedicated Cloud Engineering…

    Amazon (Columbia, MD)
    …excellence and troubleshooting complex system operations, have a good understanding of Linux , networking and general knowledge of cloud services. We need engineers ... school or equivalent diploma, or A+ or CND (Certified Network Defender) or Network + or Security- 1-3...Security- 1-3 years of experience with Systems Administration in Linux /Unix (Ubuntu, CentOS, RedHat, Solaris, etc.) - 1-3 years… more
    Amazon (10/16/25)
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  • Software Engineering Technical Lead, Go (Cilium)

    Cisco (Annapolis Junction, MD)
    …a Kubernetes-native control plane to provide seamless management of its network traffic, enabling scalable, secure, and resilient traffic management in cloud ... Cloud Native workloads and/or distributed systems **Preferred Qualifications** + Knowledge about Linux systems design, security and/or networking, Linux kernel +… more
    Cisco (01/08/26)
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  • Principal Windows Systems Administrator

    Northrop Grumman (Baltimore, MD)
    …By joining in our shared mission, we will support yours of expanding your personal network and developing skills, whether you are new to the field or an industry ... smooth operation of multi-user computer systems, including coordination with network , software, and system engineers, PC desktop technicians, project managers,… more
    Northrop Grumman (01/08/26)
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  • Sr IT Apps Analyst

    Textron (Hunt Valley, MD)
    …least five \(5\) years' experience in system administration, preferably on Linux \-based systems\.Ability to work independently on novel and challenging technical ... industry\.Experience deploying and maintaining applications hosted on both Windows and Linux , with an emphasis on RHEL distributions\.Knowledge of computer networks… more
    Textron (12/28/25)
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  • Software Engineer L2

    Jovian Concepts, Inc. (Annapolis, MD)
    …processing background (Wireshark)<\/span><\/span><\/span><\/span> <\/span><\/li>\n + Linux | UNIX background<\/span><\/span><\/span><\/span> <\/span><\/li>\n ... releases for corporate systems.<\/span><\/span><\/span><\/span><\/li>\n <\/ul>\n \n + Work with providers, network team, and comms teams to fix network issues… more
    Jovian Concepts, Inc. (12/24/25)
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  • Principal Software Developer - OCI Technical…

    Oracle (Annapolis, MD)
    …networking data-plane architectures (DPU-based or DPDK-based solutions) + Familiarity with network virtualization, network protocols, and distributed systems + ... environments with mission-critical, tier-0 services **Preferred Qualifications** + Expertise in Linux internals and strong Linux /Unix troubleshooting skills +… more
    Oracle (12/03/25)
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