• IT Lead

    KBR (Bethesda, MD)
    …to a cloud infrastructure. + Must have knowledge and hands-on experience administering Windows, UNIX , and Cloud based systems + Must have demonstrated ability to ... Impactful Work: Your contributions will be pivotal in designing and optimizing defense systems that ensure national security and shape the future of space defense.… more
    KBR (05/22/25)
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  • Computer Network Operations (All Levels)

    Lentech, Inc (Hanover, MD)
    …RHCE, CEH, CCNA, or CISSP preferred, Minimum three (3) years experience with system (Windows, Linux, and Solaris) and network administration , Minimum three (3) ... tackling some of the nation's most critical challenges in systems security and vulnerability? Would you consider joining a...year of scripting experience (Python, Perl, VB script, or Unix shell scripts), Able to install and configure network… more
    Lentech, Inc (06/04/25)
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  • Secret Cleared Vulnerability Scanning Specialist

    Zantech (Adelphi, MD)
    administration . This position requires a strong background understanding UNIX /Linux and Windows operating systems . Responsibilities include, but will not ... Cleared Vulnerability Scanning Specialist to provide vulnerability scanning within enterprise systems for our Federal client. Reporting directly to the client IAM,… more
    Zantech (08/07/25)
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  • Lead Software Developer

    Lumen (Annapolis, MD)
    …of security knowledge + Experience with system , network, or security administration in a Unix -based environment + Knowledge of Internet networking protocols, ... such as routers, firewalls, DDoS mitigation appliances, and intrusion detection systems + Operating system kernels and network drivers **What We Look For in a… more
    Lumen (07/31/25)
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  • Network Administrator

    ManTech (Laurel, MD)
    …or SSCP) **Preferred Qualifications:** + Familiarity with configuring, scripting, and managing Unix , RHEL and Windows operating systems + Familiarity with ... + Configure Remote Authentication Dial-In User Service (RADIUS) for switch administration + Use network monitoring and management tools such as Solarwinds… more
    ManTech (07/23/25)
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  • Lead Offensive Security Analyst (Red Team…

    T. Rowe Price (Owings Mills, MD)
    …Open Source solutions + Previous Experience working in the Financial Industry + System Administration Experience + Experience acting as an advisor to leadership ... filter bypassing, SQL Injection) + In-depth understanding of Windows operating systems and knowledge of Unix , Linux, and macOS operating systems . + Ability… more
    T. Rowe Price (06/25/25)
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  • Sr. Consultant - OT Network Architect | Remote,…

    Optiv (Columbia, MD)
    …governance. + Strong understanding of networking (TCP/IP, OSI model), operating system fundamentals (Windows, UNIX , mainframe), security technologies (firewalls, ... custom rule development, workflow configuration and development, and third-party system integration. + Provide knowledge transfer and post production support… more
    Optiv (06/12/25)
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  • Data Center Engineer (Infrastructure/Cloud)

    KBR (Fulton, MD)
    …and integration for both physical and virtual infrastructure hosting one or more Operating Systems : Windows, Linux, Solaris, UNIX , and/or AIX systems . + ... Impactful Work: Your contributions will be pivotal in designing and optimizing defense systems that ensure national security and shape the future of space defense.… more
    KBR (07/16/25)
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  • Sr. Detection/Splunk Engineer

    Datavant (Annapolis, MD)
    …Engineering and Infrastructure teams to onboard new data sources. + Strong UNIX /Linux administration skills. + Understanding of Kubernetes RBAC, network ... grasp of modern security best practices. If you're passionate about building secure systems and enabling high-quality detections at scale, we'd love to hear from… more
    Datavant (08/01/25)
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  • Software Engineer Level 3

    Jovian Concepts, Inc. (Annapolis Junction, MD)
    …development + Experience with Continuous Integration + LINUX or UNIX administration /maintenance experience + knowledge of SIGINT systems and dataflows + ... and will be comfortable working with containerization, orchestration, and event-driven systems . In addition, the candidate must be willing to collaborate with… more
    Jovian Concepts, Inc. (07/09/25)
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