• Principal Windows Systems

    RTX Corporation (El Segundo, CA)
    …meaningful problems that create a safer, more secure world. **Principal System Administrator ** in infrastructure Workplace Services, collaborates with many ... teams to support fast-paced, critical programs with classified information system capabilities. Success in this role means you can develop, implement and maintain… more
    RTX Corporation (11/18/25)
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  • Linux Systems Administrator , Sr…

    Lockheed Martin (Sunnyvale, CA)
    …than 570 facilities that span more than 70 countries\. We are hiring a Linux System Administrator , Sr to support daily IT operations in our Sunnyvale, CA ... restore capabilities\)\. In this position, the chosen candidate will utilize their system administration skills as primary IT support for a classified environment,… more
    Lockheed Martin (11/20/25)
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  • Principal System Administrator

    RTX Corporation (El Segundo, CA)
    …technology solutions to prevent security threats, secure the integrity of our systems and support IT infrastructures around the world. **Sr. Principal System ... teams to support exciting, critical programs with classified information system capabilities. Success in this role means you can...problems. **What You Will Do** : + Provide IT systems administration in a heterogeneous Microsoft Windows and Red… more
    RTX Corporation (12/09/25)
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  • System Administrator

    TekSynap (Arlington, VA)
    …Engineer** toadminister and sustain JPO's classified and unclassified systems , applying patches,monitoringuptime, and ensuring compliance in cloud-native ... of cloud services. + Monitor performance, availability, and compliance of all systems . **REQUIRED QUALIFICATIONS** + Bachelor's degree in IT, Computer Science, or… more
    TekSynap (12/31/25)
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  • Cisco Identity Services Engineer/…

    UIC Government Services and the Bowhead Family of Companies (Dahlgren, VA)
    …Directory knowledge(eg Organizational Unit(OU) identification, domain "trusts", Domain Name System (DNS), identity resolution) + Splunk 'syslog' experience with ... **Overview** **CISCO IDENTITY SERVICES ENGINEER/ ADMINISTRATOR (RDTE)** Bowhead has an immediate opening for...Design and Engineering Operation and Maintenance support for ISE systems on the classified and unclassified Research, Development, Test… more
    UIC Government Services and the Bowhead Family of Companies (12/18/25)
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  • Log Aggregation Administrator , SME

    CGI Technologies and Solutions, Inc. (Arlington, VA)
    …the centralized collection, processing, and analysis of log data from various IT systems . This role is critical for monitoring system performance, enhancing ... **Log Aggregation Administrator , SME** **Category:** Administration **Main location:** United States, Virginia, Arlington **Position ID:** J0925-2125 **Employment… more
    CGI Technologies and Solutions, Inc. (12/11/25)
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  • Cyber Administrator

    CAE USA INC (Arlington, TX)
    …development, advancement and having fun! Summary We are seeking a mission-focused System Administrator to support IT operations and cybersecurity readiness in ... control tools such as ClearCase, Git, Bitbucket. + Experience supporting DoD or classified systems . + Familiarity with SIEM tools (eg, Splunk , SolarWinds SEM). +… more
    CAE USA INC (12/24/25)
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  • Systems Administrator

    Leonardo DRS, Inc. (Frederick, MD)
    …www.leonardodrs.com . **Job Summary** In this role you will perform network and system administration duties for Leonardo DRS's on-premesis systems and networks. ... and technical skills to administer and harden servers, databases, and other system components. This position is a full-time, hybrid opportunity based in Frederick,… more
    Leonardo DRS, Inc. (12/23/25)
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  • Linux Administrator , Senior

    Amentum (Hanover, MD)
    …load balance needs, datamining requirements, support a migration to new operating system , and creating and using SPLUNK dashboards for customer leadership ... involved in the resolution process. Configures and manages Linux operating systems and installs/loads operating system software, troubleshoots, maintains… more
    Amentum (11/21/25)
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  • Secret Cleared Database/Cloud Administrator

    Insight Global (Arlington, VA)
    Job Description The Cloud Administrator is responsible for managing and optimizing the organization's cloud-based platforms and hybrid security environments. This ... (RHEL) versions 6-9. * Hands-on experience implementing Microsoft Sentinel or Splunk in hybrid cloud/on-prem environments. * Proficiency in database management… more
    Insight Global (12/23/25)
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