• Principal Systems

    ManTech (Arlington, VA)
    ManTech seeks a motivated, career and customer-oriented ** Principal Systems Administrator ** to join our team in **Pentagon, VA.** The position is **onsite.** ... user needs + Strong technical skills in areas such as Windows and Linux operating systems , network administration, virtualization, and security + Excellent… more
    ManTech (05/24/25)
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  • Senior / Principal Windows System

    SciTec (Boulder, CO)
    …will not be considered. SciTec has an immediate opportunity for a talented Senior Principal Windows System Administrator to join our team in Boulder, ... and maintain security policies and procedures to protect Windows systems and data + Monitor system performance...10+ years professional experience performing duties of a Windows system administrator + In-depth knowledge of Microsoft… more
    SciTec (04/06/25)
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  • Sr. Principal VMware Systems

    Northrop Grumman (Annapolis Junction, MD)
    …your career. Northrop Grumman Mission Systems is seeking an expert VMWare systems administrator to join its dynamic team of technical professionals in ... will include but not be limited to the following: + Perform as VMWare systems administrator for large, classified government contracts. + Obtain and analyze… more
    Northrop Grumman (04/08/25)
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  • Principal System

    RTX Corporation (Beale AFB, CA)
    …meet the demands of a rapidly evolving global market. Collins Aerospace is seeking a Principal System Administrator to support system administration and ... + Administration of VMWare ESXi servers. + Maintaining Operating Systems (Windows and RedHat Enterprise Linux ). +...Maintaining Operating Systems (Windows and RedHat Enterprise Linux ). + Application and Security Patching. + Account and… more
    RTX Corporation (05/21/25)
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  • Sr. Principal System

    Northrop Grumman (Colorado Springs, CO)
    …Missile Defense Systems has an exciting career opportunity for a **Sr.** ** Principal System Administrator - C2BMC Global Operations Lead (25-138)** to ... Northrop Grumman, our employees have incredible opportunities to work on revolutionary systems that impact people's lives around the world today, and for generations… more
    Northrop Grumman (04/08/25)
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  • Principal Systems

    Leidos (Chantilly, VA)
    …Solutions Division (MDS) within the Leidos National Security Sector is seeking a skilled Principal Systems Administrator to join a new cyber security program ... and play a key role in supporting government-critical systems . You will be part of a program that oversees development, integration, delivery, and operations and… more
    Leidos (03/29/25)
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  • Principal Administrator (DevSecOps…

    RTX Corporation (Marlborough, MA)
    …of our systems and support DT infrastructures around the world. ** Principal System Administrators** **,** internally known as Principal Analyst, ... and Packer, while managing system performance, security, and patching on Linux systems . + Experience supporting agile DevSecOps workflows by using GitOps… more
    RTX Corporation (04/22/25)
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  • Principal Systems

    RTX Corporation (El Segundo, CA)
    …and workstation support. + Ability to assist with troubleshooting, patching, and support of Linux Systems . + Provide IT systems administration in a ... Will Do:** + Experience provisioning, installation/configuration, operation, and maintenance of systems hardware and software related to a Windows/ Linux more
    RTX Corporation (05/10/25)
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  • Principal Windows Systems

    RTX Corporation (El Segundo, CA)
    …a safer, more secure world. This job opportunity is for the SIPRNET Windows Administrator position at Raytheon El Segundo. The SIPRNET Windows Administrator is ... responsible for the administering the local DoD classified Windows systems , including workstations and server, routers, firewalls, switches and other Windows devices… more
    RTX Corporation (05/24/25)
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  • Windows Server Administrator

    Northrop Grumman (Wright Patterson AFB, OH)
    …is seeking a Windows Server Administrator / Principal Windows Server Administrator to maintain and enhance Windows Systems and Infrastructure for the ... develop and maintain good working relationships with internal and external stakeholders. This Windows Systems Administrator will be an active part of a team of … more
    Northrop Grumman (04/08/25)
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