• Cybersecurity Network Defense

    GovCIO (Washington, DC)
    …in Radford, VA and will be a remote position. **Responsibilities** The Senior Cybersecurity Network Defense Administrator (Information Assurance Engineer ... USD $150,000.00 /Yr. Submit a referral to this job (https://careers-govcio.icims.com/jobs/6786/ cybersecurity - network - defense - administrator /job?mode=apply&apply=yes&in\_iframe=1&hashed=-1834385473) **Location** _US-Remote_… more
    GovCIO (09/25/25)
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  • Cybersecurity System Administrator

    M. C. Dean (District Of Columbia, DC)
    Overview MC Dean is seeking a highly skilled ** Cybersecurity System Administrator ** to support a secure operational technology environment by integrating ... advanced system administration with proactive cybersecurity operations. This dual-role position requires an individual with...ecosystem. + Operate and manage jump (bastion) hosts for network segregation and secure remote access. + Coordinate with… more
    M. C. Dean (08/27/25)
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  • Network Administrator

    SAIC (Washington, DC)
    …contract award, with an anticipated decision expected by Winter/ Spring 2026.** The ** Network Administrator ** responsibilities include, but are not limited to: + ... Certified Network Defender (CND) + Bachelors degree in IT, Cybersecurity , Computer Science, Information Systems, Data Science, or Software Engineering and 9… more
    SAIC (10/04/25)
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  • Systems Administrator 2

    Nightwing (Annapolis Junction, MD)
    …vulnerabilities, characterization, information assurance, and emerging technologies to expand cybersecurity solutions. Job Description: The Systems Administrator ... demanding challenges. Our capabilities include cyber space operations, cyber defense and resiliency, vulnerability research, ubiquitous technical surveillance, data… more
    Nightwing (10/13/25)
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  • Fidelis Administrator - Active TS/SCI…

    ENS Solutions (College Park, MD)
    …+ Experience automating deployments and configuration management. + Experience as a network administrator or systems engineer. + Experience in using Active ... including day-to-day operations, monitoring, and problem resolution for all client/server/storage/ network devices, etc. Install, configure and manage operating system… more
    ENS Solutions (09/27/25)
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  • Cloud Solution Architect - Cybersecurity

    Microsoft Corporation (Washington, DC)
    … (MS-500), Azure Security Engineer Associate (AZ-500), Microsoft Cybersecurity Architect (SC-100), Security Operations Analyst Associate (SC-200), Identity ... Microsoft continues to invest over $20B over the next 5 years in cybersecurity , including providing our customers with services and solutions that integrate across… more
    Microsoft Corporation (10/13/25)
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  • Systems Administrator 3

    Nightwing (Annapolis Junction, MD)
    …agility, and competitive offerings to customers in the intelligence community, defense , civil, and commercial markets. The Systems Administrator will ... demanding challenges. Our capabilities include cyber space operations, cyber defense and resiliency, vulnerability research, ubiquitous technical surveillance, data… more
    Nightwing (09/22/25)
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  • Systems Administrator (IT Program Services)

    Nightwing (Annapolis Junction, MD)
    …demanding challenges. Our capabilities include cyber space operations, cyber defense and resiliency, vulnerability research, ubiquitous technical surveillance, data ... agility, and competitive offerings to customers in the intelligence community, defense , civil, and commercial markets. Nightwing is seeking an experienced Linux… more
    Nightwing (09/22/25)
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  • Systems Administrator 3 - 23829 (FS Poly…

    Huntington Ingalls Industries (Fort Meade, MD)
    …interests in cyberspace and anticipate emerging threats. Our capabilities in cybersecurity , network architecture, reverse engineering, software and hardware ... network administrators. + Duties may include setting up administrator and service accounts, maintaining system documentation, tuning system performance,… more
    Huntington Ingalls Industries (10/07/25)
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  • System Administrator (TS-SCI w/Poly)

    Parsons Corporation (Columbia, MD)
    …world. By combining unique technologies with deep domain expertise across cybersecurity , missile defense , space, connected infrastructure, transportation, smart ... what you're looking for. **Job Description:** Parsons is seeking a versatile System Administrator to tackle new challenges across the full stack as we continue to… more
    Parsons Corporation (09/04/25)
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  • Networking Administrator

    Link Solutions Inc (Adelphi, MD)
    …Networking Administrator position will require an understanding of enterprise network architecture, Layer 2/3 switching, routing protocols, and network ... Delivering a broad range of Infrastructure Operations, Application Development, Cybersecurity , Virtualization, Cloud and Mobility services. If you're looking for… more
    Link Solutions Inc (10/08/25)
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  • System Administrator 2

    Synergy ECP (Columbia, MD)
    System Administrator 2 Columbia, MD (http://maps.google.com/maps?q=Columbia+MD+USA+21046) Job Type Full-time Description System Administrator Level 2 Provides ... day-to-day operations, monitoring and problem resolution for all of the client/server/storage/ network devices, mobile devices, etc. Provides Tier I (Help Desk) and… more
    Synergy ECP (07/23/25)
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  • Senior System Administrator

    CACI International (Annapolis Junction, MD)
    Senior System Administrator Job Category: Information Technology Time Type: Full time Minimum Clearance Required to Start: TS/SCI with Polygraph Employee Type: ... and secure IT solutions to our clients in the defense and national security sectors. Our mission is to...service and reliability. We're looking for a skilled System Administrator to join our team and help maintain, troubleshoot,… more
    CACI International (08/01/25)
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  • System Administrator

    Synergy ECP (Columbia, MD)
    System Administrator Columbia, MD (http://maps.google.com/maps?q=Columbia+MD+USA+21046) Description Level 1 System Administrator Provides support for ... day-to-day operations, monitoring and problem resolution for all of the client/server/storage/ network devices, mobile devices, etc. Provides Tier I (Help Desk) and… more
    Synergy ECP (07/29/25)
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  • Windows System Administrator (Senior-Level)

    Link Solutions Inc (Adelphi, MD)
    …Delivering a broad range of Infrastructure Operations, Application Development, Cybersecurity , Virtualization, Cloud and Mobility services. If you're looking for ... for CMMI ML3 for Services and Development. Link Solutions is seeking a Windows System Administrator (Senior-Level) to join our team at Adelphi, MD. + Must be a US… more
    Link Solutions Inc (10/08/25)
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  • Senior Systems Administrator

    Competitive Range Solutions, LLC (Fort Meade, MD)
    …in a collaborative, congenial environment. We are seeking a Senior System Administrator to lead the management, operations, and maintenance of complex DoD systems ... + Maintain extensive knowledge of diverse IT systems and network architectures, including high-volume/high-availability infrastructures. + Ensure system reliability,… more
    Competitive Range Solutions, LLC (08/07/25)
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  • Systems Administrator II- Full-Scope…

    RTX Corporation (Annapolis Junction, MD)
    …more secure world. Raytheon currently has an opening for a temporary System Administrator to perform onsite in our Annapolis Junction, Maryland office. The selected ... unclassified work will also be required. We're looking for an experienced Systems Administrator to join our team supporting critical operations in both Linux and… more
    RTX Corporation (09/19/25)
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  • System Administrator 2

    Synergy ECP (Columbia, MD)
    System Administrator 2 Columbia, MD (http://maps.google.com/maps?q=Columbia+MD+USA+21046) Description Synergy ECP, a platform company with Falfurrias Capital ... talented, dedicated staff to provide a broad range of services to the defense and intelligence industries. Our capabilities are focused on software engineering, … more
    Synergy ECP (09/01/25)
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  • Senior Systems Administrator (Systems…

    Huntington Ingalls Industries (Hanover, MD)
    …interests in cyberspace and anticipate emerging threats. Our capabilities in cybersecurity , network architecture, reverse engineering, software and hardware ... Mission Technologies is leading the next evolution of national defense - the data evolution - by accelerating a...HII, is seeking a highly motivated and experienced System Administrator to join our Minotaur team in Hanover, MD.… more
    Huntington Ingalls Industries (08/27/25)
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  • System Administrator

    Synergy ECP (Columbia, MD)
    System Administrator Columbia, MD (http://maps.google.com/maps?q=Columbia+MD+USA+21046) Description Founded in 2007 and headquartered in Columbia, Maryland, Synergy ... ECP is a leading provider of cybersecurity , software and systems engineering and IT services to...engineering and IT services to the US intelligence and defense communities. The company leverages its expertise in data… more
    Synergy ECP (07/23/25)
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