• Systems Administrator

    CACI International (Linthicum, MD)
    …and availability of customer systems . We are looking for a dedicated Linux System Administrator to help us ensure information security readiness and maintain ... Systems Administrator Job Category: Information Technology...Time Type: Full time Minimum Clearance Required to Start: TS /SCI with Polygraph Employee Type: Regular Percentage of Travel… more
    CACI International (09/27/25)
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  • Senior Systems Administrator

    SMX (Patuxent River, MD)
    Senior Systems Administrator (VMware) (4601)at SMX(View all jobs) (https://www.smxtech.com/careers/) Patuxent River, MD SMX is looking for a highly motivated ** ... Systems Administrator ** with demonstrated experience to maintain...virtual networking. **Required Skills and Experience:** + Clearance Required: Top Secret + Bachelor's degree in a… more
    SMX (11/14/25)
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  • Windows Systems Administrator

    Northrop Grumman (Jessup, MD)
    RELOCATION ASSISTANCE: Relocation assistance may be available CLEARANCE TYPE: Top Secret TRAVEL: Yes, 10% of the Time **Description** At Northrop Grumman, our ... Mission Systems is seeking an experienced Windows Systems Administrator to join its Classified Solutions...and 3:** + Candidates must have a current DoD Top Secret level security clearance (adjudicated within… more
    Northrop Grumman (12/05/25)
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  • SIGINT Systems Administrator

    CACI International (Beale AFB, CA)
    SIGINT Systems Administrator (Low-Band Journeyman) Job Category: Information Technology Time Type: Full time Minimum Clearance Required to Start: TS /SCI ... None * * * CACI is seeking a SIGINT Systems Administrator (Low-Band Journeyman) to join the...onsite at Beale AFB, CA and have an active/current TS /SCI prior to hire. **Responsibilities:** + Manages/supports LBS SW… more
    CACI International (10/17/25)
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  • Systems Administrator

    ISYS Technologies (Schriever AFB, CO)
    …the space initiatives of our government customers. I2X Technologies is seeking a Systems Administrator to support ongoing activities for a customer in Colorado ... position will be on-site and will require an active Secret clearance, Top Secret preferred....Linux servers + Install and configure Red Hat Linux / Windows / Solaris operating systems more
    ISYS Technologies (10/22/25)
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  • Senior Systems Administrator

    RTX Corporation (Tucson, AZ)
    …only US citizens are eligible for a security clearance​ **Security Clearance:** DoD Clearance: Top Secret At Raytheon, the foundation of everything we do is ... world. **What You Will Do** : + Provide IT systems administration in a heterogeneous Microsoft Windows and Redhat...related field. + Active and transferable US government issued Top Secret security clearance is required prior… more
    RTX Corporation (11/13/25)
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  • Systems Administrator

    Chenega Corporation (Arlington, VA)
    **Req ID:** 38346 **Summary** ** Systems Administrator ** **Arlington, VA** Are you ready to enhance your skills and build your career in a rapidly evolving ... interests of our nation. SecuriGence is seeking a talented ** Systems Administrator ** to help contribute to our...DOD IAT Level II Certification is required. + DOD Top Secret clearance w/ SCI eligibility. **Knowledge,… more
    Chenega Corporation (11/20/25)
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  • Systems Administrator

    William C Brown Inc (Springfield, VA)
    Systems Administrator EOE Statement We are...DoD 8570 Level II equivalent within 90 days of hire* TS /SCI Clearance required and eligibility to obtain a Poly* ... protected by law. Description WCBinc is looking for a Systems Administrator to join our team to...create and modify scripts in multiple disciplines on Windows, Linux , and Solarissystems* Knowledge of the Customer's processes and… more
    William C Brown Inc (10/14/25)
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  • System Administrator

    ManTech (Eglin AFB, FL)
    …analysis/vulnerability assessment, Group Policy management and configuration. **Security Clearance:** + Active Top Secret Clearance + Must be able to obtain and ... Job Description **MANTECH** seeks a motivated, career and customer-oriented **System Administrator ** to join our Air Force / Space team at **Eglin AFB** . The System… more
    ManTech (12/04/25)
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  • Endpoint Security as a Service (ESS) Engineer/…

    Leidos (Washington, DC)
    …network components and develop cutting-edge technical solutions. **Basic Qualifications:** + Active ** Top Secret clearance** (SCI eligible). + **8+ years of IT ... - where innovation meets mission.** **What You'll Do** As an ESS Engineer and Administrator , you won't just maintain systems - you'll _elevate_ them. You'll be… more
    Leidos (10/03/25)
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