• Sr. System Administrator II (Temp)

    RTX Corporation (Annapolis Junction, MD)
    …groups as well as integrating Linux systems into an Active Directory environment + Planning and performing operating system , software and repo updates ... Type:** Onsite **U.S. Citizen, US Person, or Immigration Status Requirements:** Active and transferable US government issued security clearance is required prior… more
    RTX Corporation (11/19/25)
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  • System Engineer (TS/SCI)- Senior or Mid…

    Vexterra Group (Bethesda, MD)
    …methodologies, such as SCCM + Experience with installing, configuring, and managing active directory , DNS, DHCP, IIS, and other Microsoft COTS products ... maintenance + Experience with hardening Windows environments + Significant experience with system administration of server operating systems such as Microsoft… more
    Vexterra Group (01/13/26)
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  • Windows System Administrator (Senior-Level)

    Link Solutions Inc (Adelphi, MD)
    …our national security. Job Responsibilities: + Manage Windows Server environments and support Active Directory , Group Policy, and MECM operations. + Install and ... Services and Development. Link Solutions is seeking a Windows System Administrator (Senior-Level) to join our team at Adelphi,...Must be a US Citizen + Must have an active DoD Top Secret Clearance + Non-remote (relocation incentive… more
    Link Solutions Inc (01/06/26)
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  • Senior Linux Systems Administrator

    Leidos (Camp Springs, MD)
    …Modules) on RHEL to enable 2-factor authentication via RSA and/or Active Directory . + DISA environment hardening experience. **Preferred Qualifications:** ... Systems Security Certified Practitioner (SSCP)). + Training (DISA-US1384 DCWF Linux System Administrator / DISA-US1390 DCWF Windows Systems Administrator). +… more
    Leidos (12/20/25)
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  • Information Systems Security Manager,…

    Nexagen Networks Inc (Fort Detrick, MD)
    …and software installation, testing, and operations * Experience with Active Directory , Group Policy, and Domain Name System (DNS) * Hands-on experience ... Information Systems Security Manager, Senior Security Clearance Requirement: Current and Active DoD Top Secret Salary Range: $120K - $170K (The salary range… more
    Nexagen Networks Inc (01/17/26)
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  • Senior Systems Administrator

    Leidos (Gaithersburg, MD)
    …(Git, Jenkins, Docker, etc.). + Knowledge of enterprise backup solutions, DNS, DHCP, Active Directory , and PKI. \#Chinook If you're looking for comfort, keep ... St. Louis, MO + Tucson, AZ **Clearance Level Required:** Active Top Secret to be considered with the ability...to obtain TS/SCI with Polygraph. **Primary Responsibilities:** + Lead system administration for Linux and Windows-based systems more
    Leidos (01/16/26)
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  • Systems Administrator

    Guidehouse (Bethesda, MD)
    …clusters, including Elasticsearch, Logstash, Kibana and *beats + Experience with Windows Systems Administration and troubleshooting Active Directory + ... **Job Family** **:** Systems Engineering **Travel Required** **:** None **Clearance Required** **:** Active Top Secret SCI (TS/SCI) **What You Will Do:** +… more
    Guidehouse (12/10/25)
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  • System Administrator 2

    M. C. Dean (Annapolis Junction, MD)
    …(servers and workstations). + Perform daily operations to include Active Directory management, monitoring and reviewing system logs. + Support configuration ... service level agreements. + Support configuration and management of Windows operating systems and install/load operating system software. + Perform desktop… more
    M. C. Dean (11/05/25)
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  • Lead System Security Engineer

    Guidehouse (Bethesda, MD)
    …Azure, and/or Google) + Experience with assessing 5 of the 8 types of platforms/ systems : + ICAM Solution ( Active Directory , SailPoint and CyberArk experience ... other compliance tasks. **3. Privacy** + Ensure all CIT systems comply with policies. + Focus on minimizing risks...maintain the SA&A lifecycle workflow, integrating security into the system development lifecycle per NIST SP 800-37. + Guide… more
    Guidehouse (11/19/25)
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  • System Security Engineer

    Guidehouse (Bethesda, MD)
    …Experience with assessing 2 of the platforms/ systems noted: + ICAM Solution ( Active Directory , SailPoint and CyberArk experience is preferred). + Network - ... other compliance tasks. **3. Privacy** + Ensure all CIT systems comply with policies. + Focus on minimizing risks...maintain the SA&A lifecycle workflow, integrating security into the system development lifecycle per NIST SP 800-37. + Guide… more
    Guidehouse (11/19/25)
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