• Systems Administrator _TS/SCI…

    General Dynamics Information Technology (El Segundo, CA)
    …**US Citizenship Required:** Yes **Job Description:** Transform technology into opportunity as a Systems Administrator with GDIT. A career in enterprise IT means ... Must Be Able to Obtain:** Top Secret SCI + Polygraph **Public Trust/Other Required:** None **Job Family:** Systems...operate. At GDIT, people are our differentiator. As a Systems Administrator you will help ensure today… more
    General Dynamics Information Technology (05/14/25)
    - Related Jobs
  • Principal Windows System Administrator

    RTX Corporation (El Segundo, CA)
    …US citizens are eligible for a security clearance​ **Security Clearance:** TS/SCI with Polygraph **Principal Windows Systems Administrator - El Segundo, CA ... -Must have a TS/SCI with Counterintelligence (CI) Polygraph ​ active clearance required, 100% onsite, we offer relocation!** At Raytheon, the foundation of everything… more
    RTX Corporation (07/11/25)
    - Related Jobs
  • IT Linux Systems Administrator - Top…

    SpaceX (Hawthorne, CA)
    IT Linux Systems Administrator - Top Secret Clearance Hawthorne, CA Apply SpaceX was founded under the belief that a future where humanity is out exploring the ... goal of enabling human life on Mars. IT LINUX SYSTEMS ADMINISTRATOR - TOP SECRET CLEARANCE SpaceX...ADDITIONAL REQUIREMENTS: + Active Top Secret or TS/SCI with Polygraph . Note that an active clearance may provide the… more
    SpaceX (08/08/25)
    - Related Jobs
  • IT Systems Administrator - Top…

    SpaceX (Hawthorne, CA)
    IT Systems Administrator - Top Secret Clearance Hawthorne, CA Apply SpaceX was founded under the belief that a future where humanity is out exploring the stars ... ultimate goal of enabling human life on Mars. IT SYSTEMS ADMINISTRATOR - TOP SECRET CLEARANCE SpaceX...ADDITIONAL REQUIREMENTS: + Active Top Secret or TS/SCI with Polygraph . Note that an active clearance may provide the… more
    SpaceX (07/12/25)
    - Related Jobs
  • Sr. Principal Linux Systems

    RTX Corporation (El Segundo, CA)
    …US citizens are eligible for a security clearance​ **Security Clearance:** TS/SCI with Polygraph **Sr. Principal Linux Systems Administrator - El Segundo, CA ... -Must have a TS/SCI with CI Polygraph active clearance, we offer relocation!** At Raytheon, the...create a safer, more secure world. **Sr Principal System Administrator ** in infrastructure Workplace Services, collaborate with a many… more
    RTX Corporation (08/01/25)
    - Related Jobs
  • Linux / Unix Systems Administrator

    Lockheed Martin (Sunnyvale, CA)
    …Space programs in Sunnyvale, CA\. **Your Mission:** As a Linux Information Systems Administrator , your responsibilities will include: * Technical Support: ... vulnerabilities, and perform system hardening to ensure the security of our systems \. * Root Cause Analysis: Perform in\-depth analysis to resolve technical issues… more
    Lockheed Martin (07/12/25)
    - Related Jobs
  • Network Administrator - Site Survey…

    CACI International (Los Alamitos, CA)
    Network Administrator - Site Survey and Install Support Job Category: Information Technology Time Type: Full time Minimum Clearance Required to Start: TS/SCI with ... Polygraph Employee Type: Regular Percentage of Travel Required: Up...and Streaming services. **Responsibilities:** As a Tier 2 Network Administrator , you'll be challenged with enterprise support problems where… more
    CACI International (08/01/25)
    - Related Jobs
  • System Administrator 3

    M. C. Dean (Sacramento, CA)
    …seeking a **System Administrator 3** to join our **Security and Electronic Systems (SES)** business Unit. As part of **(SES)** Strategic Business Unit you will ... telecommunications, life safety, automation and controls, audiovisual, and IT systems . Headquarters in Tysons, Virginia, MC Dean delivers resilient, secure,… more
    M. C. Dean (07/15/25)
    - Related Jobs
  • Unified Communications Administrator

    CACI International (Los Alamitos, CA)
    Unified Communications Administrator Job Category: Information Technology Time Type: Full time Minimum Clearance Required to Start: TS/SCI with Polygraph ... required. + Provide technical knowledge of VoIP / PBX telephony systems , software, hardware, Telecommunications standards, and Cisco Unified Communications Manager.… more
    CACI International (07/22/25)
    - Related Jobs
  • Senior Linux System Administrator

    General Dynamics Information Technology (Livermore, CA)
    …**Clearance Level Must Be Able to Obtain:** Top Secret SCI + Polygraph **Public Trust/Other Required:** None **Job Family:** Systems Administration **Skills:** ... Required:** Yes **Job Description:** $10K Sign-on bonus A Senior Linux System Administrator Maintains an organization's computer systems ' workflows and is… more
    General Dynamics Information Technology (08/09/25)
    - Related Jobs