• (Mid. or Senior ) Networking Systems…

    Belay Technologies (Annapolis Junction, MD)
    …runner up in 2020 and a finalist in 2021! Belay Technologies is seeking a Network Systems Administrator (Windows) to join our team. The selected individual will ... be responsible for monitoring infrastructure systems, applications, and processes, and for ensuring that...respond to hardware and software incidents and work with senior system administrators, at times remotely from other locations.… more
    Belay Technologies (10/01/25)
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  • Senior Systems Administrator 10k…

    Leidos (Annapolis Junction, MD)
    **Description** **Leidos** has a new and exciting opportunity for a Senior Systems Administrator in our **National Security Sector's (NSS) Cyber & Analytics ... team is at the forefront in Security Engineering, Computer Network Operations (CNO), Mission Software, Analytical Methods and Modeling,...and make a difference in National** **Security!** As a Senior Systems Administrator you will play a… more
    Leidos (11/15/25)
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  • Senior ServiceNow Systems…

    SAIC (Annapolis Junction, MD)
    **Description** SAIC has an immediate opening for a ServiceNow Administrator in Annapolis Junction, on a very exciting program! In this role you will do many ... and maintenance of Information Technology (IT) systems + Manage IT system infrastructure and any processes related to these systems + Provide support to… more
    SAIC (11/06/25)
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  • Network Administrator

    GovCIO (Annapolis, MD)
    …VA, and will be a remote position. **Responsibilities** This position is for a Senior Network Administrator in a mixed and growing environment currently ... /Yr. Submit a referral to this job (https://careers-govcio.icims.com/jobs/6775/ network - administrator /job?mode=apply&apply=yes&in\_iframe=1&hashed=-1834385473) **Location** _US-Remote_ **ID** _2025-6775_ **Category** _IT Infrastructure more
    GovCIO (09/26/25)
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  • Senior Linux System Administrator

    ManTech (Fort Meade, MD)
    ManTech seeks a ** Senior Linux System Administrator ** to join our team in **Ft. Meade, MD** . In this role, you will provide support for implementation, ... troubleshooting, and maintenance of IT systems. + Manage IT system infrastructure and processes related to client/server/storage/ network devices and mobile… more
    ManTech (10/14/25)
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  • Senior Systems Administrator

    Belay Technologies (Annapolis Junction, MD)
    …Work 2019, runner up in 2020 and a finalist in 2021! Belay Technologies seeks a Senior System Administrator (SA) to join our intel team. The SA provides support ... for implementation, troubleshooting and maintenance of IT systems. Manages IT system infrastructure and any processes related to these systems. Provides support to… more
    Belay Technologies (11/19/25)
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  • Senior Systems Administrator

    Competitive Range Solutions, LLC (Fort Meade, MD)
    …exciting projects in a collaborative, congenial environment. We are seeking a Senior System Administrator to lead the management, operations, and maintenance ... + Maintain extensive knowledge of diverse IT systems and network architectures, including high-volume/high-availability infrastructures. + Ensure system reliability,… more
    Competitive Range Solutions, LLC (11/06/25)
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  • Senior High Performance Computing (HPC)…

    BAE Systems (Annapolis Junction, MD)
    …incentives may be available based on position level and/or job specifics. ** Senior High Performance Computing (HPC) Systems Administrator ** **115702BR** EEO ... management, enterprise-leve, multi-site design and architecture + Support Tier 3 Infrastructure services such as: DNS, NIS, Active Directory, Centrify, Zenoss,… more
    BAE Systems (09/09/25)
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  • Senior Linux System Administrator

    ManTech (Fort Meade, MD)
    Mantech seeks a motivated, career and customer-oriented ** Senior Linux System Administrator ** to join our team in **Ft. Meade, MD** . In this role, you will ... and maintenance of IT systems, as well as manage IT system infrastructure and associated processes. **Responsibilities include, but are not limited to:** +… more
    ManTech (10/25/25)
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  • 337 - Senior Linux Systems…

    ARSIEM (Annapolis Junction, MD)
    …work with. ARSIEM is looking for a motivated and experienced Linux System Administrator for a small, diverse team that provides end-to-end software, systems, and ... network engineering services to support Integrated Discovery Operations (IDO)....and latency; setting up firewalls. + Responsible for secure infrastructure and vulnerability corrections, data security, compliance, and backups… more
    ARSIEM (10/30/25)
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