• Sr. System Administrator II (Temp)

    RTX Corporation (Annapolis Junction, MD)
    …some unclassified work will also be required. We're looking for an experienced Systems Administrator to join our team supporting critical operations in both ... US citizens are eligible for a security clearance​ **Security Clearance:** DoD Clearance: TS /SCI At Raytheon, the foundation of everything we do is rooted in our… more
    RTX Corporation (11/19/25)
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  • Systems Administrator

    General Dynamics Information Technology (Fort Belvoir, VA)
    …RQ206477 **Type of Requisition:** Regular **Clearance Level Must Be Able to Obtain:** Top Secret SCI + Polygraph **Public Trust/Other Required:** None **Job ... group of computers running on one or more operating systems . + Understand all the different systems ...days over 2 week period) * Security Clearance Level: TS /SCI with Polygraph * Required Skills and Abilities: *… more
    General Dynamics Information Technology (12/02/25)
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  • Linux System Administrator

    ManTech (Laurel, MD)
    …from an accredited college or university with 12 years of experience as a Systems Administrator supporting programs and contracts of similar scope, type, and ... NetApp + Experience with Splunk **Clearance Requirements:** + Must have a current/active Top Secret /SCI with Polygraph **Physical Requirements:** + The person in… more
    ManTech (12/04/25)
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  • Linux Systems Administrator…

    Lockheed Martin (Huntsville, AL)
    … Clearance to start, with the ability and willingness to obtain and maintain DOD Top Secret clearance, with the ability to maintain that clearance throughout the ... This IT professional will ensure that the Space IT systems are managed, controlled and compliant with the Security...* VMware experience \(VSphere vCenter, ESXi, KVM\) * Active Top Secret Clearance **Security Clearance Statement:** This… more
    Lockheed Martin (11/20/25)
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  • Linux 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 (12/20/25)
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  • Linux System Administrator

    Nightwing (Arlington, VA)
    …seeking a Technical Engagement Network (TEN) Lab Manager with experience in Linux Systems Administrator to support the design, development, and deployment of ... Nightwing provides technically advanced full-spectrum cyber, data operations, systems integration and intelligence mission support services to...- US Citizenship - Must have an active DoD Secret clearance, TS /SCI clearance is preferred. -… more
    Nightwing (11/26/25)
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  • System Administrator (Level 4)

    Kaizen Approach, Inc (Annapolis Junction, MD)
    Kaizen Approach is currently seeking a Systems Administrator to provide implementation, troubleshooting, and maintenance support for complex Information ... Technology (IT) systems within a secure government environment. In this role,...of twenty (20) years of experience as a System Administrator (SA) on programs and contracts of similar scope,… more
    Kaizen Approach, Inc (11/11/25)
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  • Cloud System Administrator

    ManTech (Annapolis Junction, MD)
    …maintain system solutions **Minimum Qualifications:** + 14+ years of experience as a Systems Administrator or Cloud Engineer supporting programs of similar scope ... MANTECH seeks a motivated, career- and customer-oriented **Cloud System Administrator ** to join our team in Hanover, MD. Our...(Amazon Linux 2023, RHEL 8/9) and Windows Server (2016/2022) systems . + Configure and manage core services such as… more
    ManTech (12/24/25)
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  • Senior Linux System Administrator

    Parsons Corporation (Aberdeen, MD)
    …+ Linux+ certification (or equivalent) + Security+ certification (or equivalent) + Top Secret clearance **Security Clearance Requirement:** An active Top ... _Parsons is looking for an amazingly talented_ **_Senior Linux Systems Administrator_** _to join our team!_ **_What You'll Be..._Support design of Army Research Laboratory A2I2 building for systems being delivered in 2024 and future platforms_ +… more
    Parsons Corporation (11/15/25)
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  • Senior System Administrator (2nd Shift…

    RTX Corporation (Springfield, VA)
    …tough, meaningful problems that create a safer, more secure world. Raytheon seeks a Systems Administrator to join a high-performing team at the heart of an ... as only US citizens are eligible for a security clearance​ **Security Clearance:** TS /SCI with Poly - Current At Raytheon, the foundation of everything we do… more
    RTX Corporation (12/14/25)
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