• Information Systems Security Manager

    Leidos (Bethesda, MD)
    …Candidate must be 8570.1M / 8140 compliant with certifications, preferably CISSP or Associate and RHCSA to correspond to an IA Management Level III designation. ... have previous ISSM or ISSO experience * Must have Linux operating system experience including but not limited to:...not limited to: + Must have basic command line Linux knowledge, comfortable viewing files and knowledgeable about their… more
    Leidos (10/23/25)
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  • Senior Mainframe Systems Programmer - zVM

    Ensono (Annapolis, MD)
    …all operating systems assigned. This position reports to the Manager of the z/VM, z/ Linux team and is responsible for assisting in the management of the z/VM ... + Off Hours Support as required/Participate in On-Call Schedule + Platforms: **z/VM, z/VSE, Linux on IBM Z** What the Ideal Candidate Brings to this Role _Required… more
    Ensono (10/07/25)
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  • ACAS Engineer - Active Top Secret Clearance…

    ENS Solutions (College Park, MD)
    …flow analysis, packet capture analysis, network proxies, firewalls, anti-virus capabilities, Linux or UNIX command line, and access control lists. Requirements + ... Assured Compliance Assessment Solution (ACAS) + Experience with Windows and Linux , including installing, configuring, or maintaining servers operating systems and… more
    ENS Solutions (09/27/25)
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  • Fidelis Administrator - Active TS/SCI with CI Poly

    ENS Solutions (College Park, MD)
    …configure and manage operating system and application software as necessary. Support Linux & Windows systems engineering efforts in system design and evaluation, ... SSH or Console Port + Experience operating and maintaining Linux servers, including operating systems and applications, patching, and...and 7+ years of experience as a system administrator, Associate 's degree and 5+ years of experience as a… more
    ENS Solutions (09/27/25)
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  • System Engineer - IA Systems

    CACI International (Annapolis Junction, MD)
    …including telecommunications (TCP/IP, OIS/CMIP/X25), operating systems (Windows, UNIX, and Linux ), databases (Oracle, MS Access, Sybase), and applications (Tivoli, ... in a related field with at least 8 years of relevant experience, OR an Associate 's degree with 12 years of relevant experience. + Proven experience as a systems… more
    CACI International (11/19/25)
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  • Systems Administrator

    SMX (Patuxent River, MD)
    …diploma and 6 years' additional experience within these functional duties; or an associate 's degree and 4 additional years may be substituted for the bachelor's ... years performing the functional duties for this position + Operating System certificate ( Linux ) and COMPTIA Security + or other DOD INST 8570 compliant qualification… more
    SMX (12/12/25)
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  • Senior Database Administrator - Hosting

    Leidos (Camp Springs, MD)
    …Design, implement, and maintain database systems within Windows, Unix, and Linux hosting environments. + Perform database installation, configuration, patching, and ... (eg, Oracle, SQL Server, PostgreSQL, MySQL) within Windows, Unix, and Linux environments. + Strong understanding of database high availability (eg, clustering,… more
    Leidos (12/06/25)
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  • Principal or Senior Principal Network…

    Northrop Grumman (Millersville, MD)
    …by the company to meet its business needs. + Competence in Linux , troubleshooting, engineering documents, tools and equipment + Familiarity with comms/networking ... by the company to meet its business needs. + Competence in Linux , troubleshooting, engineering documents, tools and equipment + Familiarity with comms/networking… more
    Northrop Grumman (12/04/25)
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  • Senior CNO Developer

    ManTech (Annapolis Junction, MD)
    …of experience; or, a high school diploma with 16 years of experience; or, an Associate 's degree with 14 years of experience. A Master's degree may substitute for 2 ... C, and Assembly. + Deep expertise in managing, configuring, and troubleshooting Linux . + Experience in embedded systems. + Experience in reverse engineering and… more
    ManTech (11/26/25)
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  • ADC Engineer II, AWS Cryptography and Identity…

    Amazon (Jessup, MD)
    …will enable your team to manage the health of a number of distributed specialized Linux server fleets and the software stacks that run on them. You will deploy and ... let it stop you from applying. Basic Qualifications - Associate 's degree or above, or Cloud+ or GICSP (Global...Security Certified Practitioner) - 3+ years of systems administration ( Linux or Windows) experience - 3+ years of technical… more
    Amazon (11/20/25)
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