• Linux Administrator , Senior

    Amentum (Hanover, MD)
    **Your Impact:** Are you interested in using your skills to help shape the Cyber, Security , & Intel space? If so, look no further. Amentum is seeking a **Linux ... Administrator , Senior** to join our team of passionate individuals...projects that make a direct impact on the Nation's security and intelligence mission. Our contract supports more than… more
    Amentum (11/21/25)
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  • System Administrator 2

    M. C. Dean (Annapolis Junction, MD)
    …lives, and changing the world for the better. We are seeking a **System Administrator 2** to join our ** Security and Electronic Systems (SES)** business Unit. ... and test Physical Access Control, CCTV, PSIM and other electronic security systems and support implementation, troubleshooting and maintenance of Information… more
    M. C. Dean (11/05/25)
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  • Senior Linux Systems Administrator (NDA 4)

    Leidos (Annapolis Junction, MD)
    …**Leidos** has a new and exciting opportunity for a **Senior Linux Systems Administrator ** in our **National Security Sector's (NSS) Cyber & Analytics Business ... Area (CABA)** . Our talented team is at the forefront in Security Engineering, Computer Network Operations (CNO), Mission Software, Analytical Methods and Modeling,… more
    Leidos (01/08/26)
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  • Windows System Administrator (Senior-Level)

    Link Solutions Inc (Adelphi, MD)
    …for CMMI ML3 for Services and Development. Link Solutions is seeking a Windows System Administrator (Senior-Level) to join our team at Adelphi, MD. + Must be a US ... Clearance + Non-remote (relocation incentive available) The Windows System Administrator (Senior-Level) will be responsible for the installation, configuration,… more
    Link Solutions Inc (01/06/26)
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  • Sr. Systems Administrator (Linux)

    Themis Insight (Fort Meade, MD)
    …along with implementing operating systems enhancements and updates to improve reliability, security and performance. The Level 2 System Administrator shall ... Civilian and Military expertise to every case. We are hiring a Sr. Systems Administrator (Linux) to work in Fort Meade, MD. Position location is subject to change… more
    Themis Insight (12/19/25)
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  • MAC System Administrator…

    Link Solutions Inc (Adelphi, MD)
    …for CMMI ML3 for Services and Development. Link Solutions is seeking a MAC System Administrator (Intermediate-Level) to join our team at Adelphi, MD. + Must be a US ... Secret Clearance + Non-remote (relocation incentive available) The MAC System Administrator will be responsible for maintaining macOS systems, managing updates,… more
    Link Solutions Inc (11/24/25)
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  • Sr. System Administrator II (Temp)

    RTX Corporation (Annapolis Junction, MD)
    …Person, or Immigration Status Requirements:** Active and transferable US government issued security clearance is required prior to start date.​ US citizenship is ... required, as only US citizens are eligible for a security clearance​ ** Security Clearance:** DoD Clearance: TS/SCI...Raytheon currently has an opening for a temporary System Administrator to perform onsite in our Annapolis Junction, Maryland… more
    RTX Corporation (11/19/25)
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  • System Administrator - MC2

    SMX (Patuxent River, MD)
    System Administrator - MC2 (4860)at SMX(View all jobs) (https://www.smxtech.com/careers/) Patuxent River, MD SMX is seeking a skilled **System Administrator ** to ... providing necessary alerting to provide notification of events/incidents/problems + Physical security monitoring for access control + Installation and cabling of… more
    SMX (01/03/26)
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  • Cloud System Administrator II

    ManTech (Annapolis Junction, MD)
    MANTECH seeks a motivated, career- and customer-oriented **Cloud System Administrator ** to join our team in Hanover, MD. Our team delivers enterprise infrastructure ... Salt, BASH, Python, and Ansible to streamline operations. + Support and maintain security posture by addressing IAVAs and ensuring compliance with security … more
    ManTech (12/23/25)
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  • Systems Network Administrator (SNA-0)

    Leidos (Laurel, MD)
    **Description** **Leidos** has a new and exciting opportunity for a **Systems/Network Administrator ** in our **National Security Sector's (NSS) Cyber & Analytics ... and much more. **Join us and make a difference in National Security !** **Job Summary:** Systems/Network administrator will provide support for implementation,… more
    Leidos (12/20/25)
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