• Senior Windows Systems Administrator

    Black Bear Technology Solutions, LLC (Adelphi, MD)
    administration teams. Required Qualifications: + Experience: Minimum of 10 years in systems administration and IT infrastructure leadership + Education: ... Clearance Locations: Adelphi, MD Position Overview: The Senior Windows Systems Administrator leads complex system administration and endpoint configuration… more
    Black Bear Technology Solutions, LLC (11/21/25)
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  • Infrastructure Team Lead

    The Raymond Corporation (York, PA)
    …Acts as the senior advisor for the work performed by the Infrastructure Team. * Provides input for performance evaluations that is timely and constructive. ... premiere Raymond Solutions & Service Center in the Northeast, Pengate Handling Systems built a reputation based on cutting-edge innovation, quality products and… more
    The Raymond Corporation (12/27/25)
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  • Senior Cloud Systems Engineer…

    St. George Tanaq Corporation (Suitland, MD)
    Systems : Linux/Unix (Ubuntu, CentOS, Red Hat) Windows Server administration Infrastructure as Code (IaC): Terraform AWS CloudFormation Containerization ... Senior Cloud Systems Engineer (Identity Management...and Domain Services (IMDS) + Design and implement enterprise infrastructure and platforms required for cloud computing. + Ensure… more
    St. George Tanaq Corporation (11/18/25)
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  • Senior Mainframe IMS Systems

    Travelers Insurance Company (Bismarck, ND)
    …**What Will Our Ideal Candidate Have?** + Three (3) plus years of infrastructure engineering/ systems administration experience preferred. + Working knowledge ... 1 **What Is the Opportunity?** Travelers is seeking a Senior IMS Systems Programmer to join our...more of the following technical skills: + Foundational IT Infrastructure , Operating Systems and Software. + Knowledge… more
    Travelers Insurance Company (12/05/25)
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  • Lead IT Infrastructure Engineer III…

    Motion Recruitment Partners (Phoenix, AZ)
    …supporting predominantly prem Windows environments, with hands-on responsibility across systems administration , virtualization, automation, and data center ... operations. This is a true senior infrastructure role with ownership and visibility... systems engineering experience + Strong Windows Server Systems Administration background + Hands-on Active Directory… more
    Motion Recruitment Partners (01/08/26)
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  • Systems Administrator Senior

    Lockheed Martin (Fayetteville, NC)
    **Description:** You will be the Systems Administrator Senior for our team\. Our team is responsible for delivering elite IT services-including hardware and ... Forces within a DoD‑approved enclave\. **What You Will Be Doing** As the Systems Administrator Senior , you will be responsible for provisioning, installing,… more
    Lockheed Martin (12/18/25)
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  • Senior Systems Administrator (Linux)

    Amentum (Waimea, HI)
    …of Defense (DoD) environment. This role requires deep technical expertise in Linux systems , leadership in secure system administration , and a strong working ... Amentum is seeking a highly experienced Senior Linux System Administrator to oversee and manage...of Trellix, LogRhythm, and MDE + Experience with DoD systems and infrastructure + Knowledge of Cyber… more
    Amentum (12/24/25)
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  • Infrastructure Networking Admin Supervisor,…

    Citigroup (San Antonio, TX)
    …We'll enable growth and progress together. **The Role:** This position serves as a senior systems administrator and Tier 2 technical support specialist for a ... and other equipment + Provide on-site support for AV infrastructure , telephony systems , CCTV, and structured cabling...5+ years of hands-on experience in a large-scale enterprise systems support or systems administration more
    Citigroup (12/04/25)
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  • Sr. Specialist Cyber Infrastructure

    L3Harris (Carlsbad, CA)
    …and security experience, with a proven record in systems administration , cybersecurity engineering, and secure infrastructure management. + Extensive ... and air-gapped systems . The engineer will design, implement, and secure infrastructure aligned with DoD Collateral requirements, DISA STIGs, NIST RMF, and FIPS… more
    L3Harris (01/02/26)
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  • Senior Linux & Windows Systems

    General Dynamics Information Technology (Fairfax, VA)
    …process. Linux server automation will use Ansible for configuration. + Act as a Senior Systems Engineer to lead troubleshooting with Linux and Windows machines ... None **Public Trust/Other Required:** NACI (T1) **Job Family:** IT Infrastructure and Operations **Skills:** Bash Scripting,Linux Server Administration ,Microsoft… more
    General Dynamics Information Technology (01/10/26)
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