• Senior System Administrator

    ManTech (Chantilly, VA)
    Administrator ;** to join our team in **Chantilly, VA** . A qualified Senior Systems Administrator will support a secure Windows-based Information System ... installation, operation, and maintenance of all current and future Information Systems . Duties and responsibilities involve the support and administration of Windows… more
    ManTech (06/03/25)
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  • Senior System Administrator

    CACI International (Denver, CO)
    Senior System Administrator Job Category: Information...your work life. More About This Role: As the Systems Administrator on this contract, you will ... Technology Time Type: Full time Minimum Clearance Required to Start: TS /SCI with Polygraph Employee Type: Regular Percentage of Travel Required: Up to 10% Type of… more
    CACI International (07/25/25)
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  • System Administrator 3

    M. C. Dean (District Of Columbia, DC)
    …electrical, engineering, and cybersecurity industries. Responsibilities What you'll do: The Systems Administrator 3 is responsible for the day-to-day management, ... involves configuring, troubleshooting, and ensuring the reliability, security, and performance of systems and services. The Systems Administrator will… more
    M. C. Dean (07/15/25)
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  • System Administrator - Senior Level

    Nightwing (Sterling, VA)
    …community, defense, civil, and commercial markets. Nightwing is seeking a highly motivated Systems Administrator to join a mature program in the Sterling VA ... location. The qualified Systems Administrator will support a very dynamic...range of experience supporting mission critical networks and computer systems . CLEARANCE REQUIREMENT: TS /SCI with POLY Responsibilities… more
    Nightwing (06/27/25)
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  • System Administrator

    Chenega Corporation (St. Marys, GA)
    …grown quickly into a leader in the federal IT and Training environment. The ** Systems Administrator ** will provide expert advice and support services in IT ... **Req ID:** 36689 **Summary** **System Administrator ** **Kings Bay, GA** Are you ready to...Secret clearance with the ability to obtain a Top - Secret clearance. **Knowledge, Skills, and Abilities:** +… more
    Chenega Corporation (07/02/25)
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  • Linux Cyber Range Operations Administrator

    Lockheed Martin (North Charleston, SC)
    …and secure tomorrow's most vital assets\. **The Work** Cyber Support Operations is seeking a Senior Systems Administrator with a versatile skill set and a ... While we think big, we operate small\. As a Senior Systems Administrator with a...9 years of professional experience\. * Must have final TS clearance * Familiarity with IT systems more
    Lockheed Martin (07/12/25)
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  • Physical Security System Administrator 4

    M. C. Dean (Chantilly, VA)
    …Security System Administrator 4** to join our **Security and Electronic Systems (SES)** business Unit. As part of **(SES)** Strategic Business Unit you will ... for federal, local and commercial customers across high-growth markets. As a System Administrator for our Physical Security Systems , you will be responsible for… more
    M. C. Dean (07/15/25)
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  • TS /SCI with Poly Systems Engineer

    Insight Global (Fort Meade, MD)
    Job Description Insight Global is looking to hire a TS /SCI with Polygraph cleared Senior Systems Administrator to support a defense contract in the Fort ... Clearance Bachelors Degree in Computer Science or related field Experience as a Systems Administrator supporting a dynamic environment of Unix and Windows … more
    Insight Global (08/08/25)
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  • Sr . Principal Network Engineer…

    Northrop Grumman (Linthicum Heights, MD)
    RELOCATION ASSISTANCE: Relocation assistance may be available CLEARANCE TYPE: Top Secret TRAVEL: Yes, 10% of the Time **Description** At Northrop Grumman, our ... Grumman Classified Solutions team is seeking a highly experienced ** Senior ** **Network Administrator ** to join its dynamic...+ Candidates must have a currentand **fully adjudicated DOD Top Secret ** level security clearance (at a… more
    Northrop Grumman (07/26/25)
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  • Information Systems Watch Technician…

    Amentum (Arlington, VA)
    …able to obtain within 6 months. + Experience as a Network and /or Systems Administrator + Operational work experience in a military communications career field ... systems are fully functional and available for the senior leader's decision support teams. This position requires an...decision support teams. This position requires an active DoD TS /SCI security clearance that has been adjudicated in the… more
    Amentum (08/08/25)
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