• Tyto Athene (Washington, DC)
    …to customers will be clear and provide sufficient detail for a mid-level system or network administrator to understand what has occurred and what needs to take ... (NICE) Cybersecurity Workforce Framework for the role of Cyber Defense Incident Responder **Qualifications** **Required:** + 6 years of security intrusion… more
    DirectEmployers Association (10/23/25)
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  • Infinity Systems Engineering (Alexandria, VA)
    …come be more with us! Job Summary: We are seeking a skilled Systems Administrator / Network Engineer to join our mission-driven team. This position offers a broad ... with network monitoring tools and troubleshooting methodologies. + Understanding cybersecurity principles and network security best practices. + Excellent… more
    DirectEmployers Association (09/30/25)
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  • 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

    Tactibit Technologies LLC (Suitland, MD)
    …environment with a shared commitment to excellence in everything we do. About the Network Administrator position We are looking for a talented network ... Tactibit Technologies provides innovative information technology, cybersecurity , and cloud support services to the Federal... network integrations, and security hardening. As a Network Administrator , you will be expected to… more
    Tactibit Technologies LLC (09/25/25)
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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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  • Network Administrator

    Leonardo DRS, Inc. (Arlington, VA)
    …full range of capabilities, visit www.leonardodrs.com . **Job Summary** As a cleared SIPR Network and System Administrator and a member of the Corporate Risk ... ID: 113066** Leonardo DRS, Inc. is an innovative and agile provider of advanced defense technology to US national security customers and allies around the world. We… more
    Leonardo DRS, Inc. (11/05/25)
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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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  • Cloud Systems Administrator

    Leidos (Alexandria, VA)
    …Leidos, we're not just delivering solutions - we're pioneering the future of defense and intelligence technology. Our diverse teams of innovators unite around a ... communities, and building sustainably for tomorrow. **Shape the future of digital defense .** Our Digital Modernization sector is at the forefront of next-generation… more
    Leidos (10/25/25)
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  • SharePoint Administrator Expert (SME)…

    General Dynamics Information Technology (Fort Belvoir, VA)
    …related experience **US Citizenship Required:** Yes **Job Description:** **SharePoint Administrator Expert (SME) - TS/SCI required** Make meaningful contributions ... critical outcomes for some of the most complex government, defense , and intelligence projects. Join GDIT as a **SharePoint..., and intelligence projects. Join GDIT as a **SharePoint Administrator Expert (SME)** with for a career where your… more
    General Dynamics Information Technology (10/29/25)
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  • Fidelis Administrator - Active TS/SCI…

    ENS Solutions (Washington, DC)
    …+ 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 (09/12/25)
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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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  • Linux System Administrator

    Nightwing (Arlington, VA)
    …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. response to civilian Government agencies and… more
    Nightwing (08/28/25)
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  • Systems Administrator (Hybrid…

    Serco (Washington, DC)
    …+ Citrix Certified Associate or Professional (CCA/CCP). + AWS Certified SysOps Administrator or equivalent. + Cisco Certified Network Associate (CCNA) or ... **Position Description** Serco is seeking a skilled Systems Administrator to support the Navy-owned PMS-ES Integrated Data Environment (IDE) in Washington, DC. This… more
    Serco (10/29/25)
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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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  • 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 (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 ... and redefine what's possible. **Job Description:** Parsons is seeking a versatile System Administrator to tackle new challenges across the full stack as we continue… more
    Parsons Corporation (09/04/25)
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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 (10/22/25)
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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 (10/28/25)
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