• Senior Systems Administrator

    Greene Tweed (Lansdale, PA)
    …with Greene, Tweed. **Essential Duties/Responsibilities** : + Support the development and administration by acting as an SME for Entra ID to support account ... core services and supporting infrastructure. + Administer and maintain Windows and Linux servers in a mixed hybrid (AWS,...Hyper-V, DNS, DHCP, SQL, Terminal Server, FTP, etc. + Administration and security management of Office 365 hybrid messaging… more
    Greene Tweed (08/21/25)
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  • Technician III/Engineer I

    Entre Technology Services (Bozeman, MT)
    …Drive, and Sharepoint * Experience with Active Directory, Domain and Group Policy Administration , and Windows network administration * Ability to install, ... upgrade and troubleshoot Windows 7 and Windows 10 operating systems in domain and...* User Guides * General Office Software * Operating System * Firewall Administration * Network Support… more
    Entre Technology Services (07/28/25)
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  • Systems Administrator

    Robert Half Technology (Houston, TX)
    Description We're seeking a skilled and proactive Systems Administrator to join our IT team. You'll be responsible for maintaining, configuring, and ensuring the ... for you. + Maintain and support physical and virtual server environments ( Windows /Linux) + Manage user accounts, permissions, and group policies via Active Directory… more
    Robert Half Technology (10/17/25)
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  • Network Lead C4I Systems SURTASS Field…

    Serco (Virginia Beach, VA)
    …and provide recommended revisions to the Government. + Identify and report system /software design problems and deficiencies for mission systems . + Provide ... and rewarding position that leverages your technical experience with integrated ship systems and high-profile problem solving? Join the Serco team of highly skilled… more
    Serco (10/01/25)
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  • Systems Engineer Engineer II - Cyber…

    RTX Corporation (Portsmouth, RI)
    …various operating systems + Experience with IT and/or network and system security administration , including building virtual machines, operating system ... security configuration, and account management best practices for UNIX, MS Windows , Red Hat Enterprise Linux, and Cisco systems + Linux Bash scripting and Python… more
    RTX Corporation (08/30/25)
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  • Senior Information System Security Officer…

    Innovative Management & Technology Services (Clarksburg, WV)
    …SAFe Agile environments and integrating security in Agile workflows. + Networking, Linux/ Windows system administration , and secure software development ... best customers on-site at top government agencies. Job Title: Senior Information System Security Officer (ISSO) Primary Location: Clarksburg, WV - Hybrid Clearance:… more
    Innovative Management & Technology Services (07/30/25)
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  • Principal Systems Administrator

    RTX Corporation (Tucson, AZ)
    …more secure world. **What You Will Do** : + Provide IT systems administration in a heterogeneous Microsoft Windows and Redhat Enterprise Linux environment. + ... Experience with Windows Server internals or Linux fundamentals to include DNS,...complexity to include the integration of hardware and operating systems (OS). + Must be able to obtain Department… more
    RTX Corporation (09/03/25)
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  • Desktop Support Specialist III - Mount Sinai Union…

    Mount Sinai Health System (New York, NY)
    …troubleshooting skills with Hardware and software 2. Expert knowledge of all Windows Operating Systems 3. Expert knowledge supporting and troubleshooting ... 6. Expert knowledge of Active Directory and basic AD administration (User and Group management). 7. Hands on experience...System is one of the largest academic medical systems in the New York metro area, with more… more
    Mount Sinai Health System (09/17/25)
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  • Information System Security Officer,…

    Lockheed Martin (Cape Canaveral, FL)
    …of system hardening via implementation of the Defense Information Systems Agency \(DISA\) Security Technical Implementation Guides \(STIGs\)\. * Knowledge of ... Lockheed Martin Space \(LMS\) is seeking a Classified Cybersecurity Information Systems Security Officer \(ISSO\) supporting the Fleet Ballistic Missile \(FBM\)… more
    Lockheed Martin (10/08/25)
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  • Secret Sr Systems Engineer

    Insight Global (Colorado Springs, CO)
    …Infrastructure environment. Tasks include, but are not limited to: Administer and maintain Windows and Redhat (RHEL) 8 Server operating systems and domain ... Job Description Insight Global is looking to hire a Systems Engineer to support a defense customer in Roy,...(Degree can be substituted for additional YOEs) Experience with Windows and Linux Engineering + Administration -… more
    Insight Global (10/16/25)
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