> Markdown version of [/jobs/ext/4587661-comsec-network-administrator](https://www.wearedevelopers.com/jobs/ext/4587661-comsec-network-administrator). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # COMSEC / Network Administrator - **Company:** General Dynamics IT - **Location:** Chantilly, VA, United States - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** Artificial Intelligence, VoIP, Cisco Unified Communications Manager, Computer Networks, System Configuration, Virtual Private Networks (VPN), Multi-protocol Systems, Key Management, Network Diagrams, Routing, Bicsi, Firewalls (Computer Science), Juniper, SC Clearance, Routing & Switching, Cisco - **Published:** November 5, 2026 - **Apply:** http://hbcu.com/cgi-bin/jobs/searchJobs.cgi?job_id=35307524 ## About the Role degradation, performing hands-on diagnostics while directing junior personnel when necessary.Coordinate cross-discipline supportwith System Administrators to resolve multi-layered issues and maintain mission continuity.Maintain and validate network diagrams, accreditation artifacts, and configuration baselinesfor the location.Assist with planning and execution of network modernization, lifecycle refreshes, and technology upgrades affecting the site.Ensure compliance with all DoD, DISA, and EMITS program policies, producing timely and accurate reporting for mission partners and program leadership. WHAT YOULL NEED TO SUCCEED Bring your technology expertise and drive for innovation to GDIT. The COMSEC / Network Administrator must have: Education: BA/BS (or equivalent experience)Experience: 10+ years of related experienceRequired Technical skills: Must have experience with cryptographic equipment and lifecycle support to include installing, securing and operating government procured COMSEC equipment.Demonstrated experience as asenior network technician or leadin a DoD or enterprise network environment.Experience configuring Cisco routing/switching technologies, CUCM, VPNs, firewalls, and advanced routing protocols. Knowledge of WAN circuits and experience with MPLS transport.Experience ensuring patch and IAVA compliance across network environments.Experience with TACLANE devices, cryptographic key management, and secure communications.Ability to work independently, remote environment and make rapid decisions during operational events.Must possess a valid U.S. drivers license and an international drivers permit.Must be willing to participate in an on-call schedule to ensure continuous network support.Strong communication skills and the ability to interface directly with leadership, mission partners, and stakeholders.Security Clearance: Secret Clearance with a T5/SSBI investigationrequiredRole Requirements: Must possess a valid U.S. drivers license and an international drivers permit.Must be willing to participate in an on-call schedule to ensure continuous network support.Certifications: DoD 8570 IAT Level II certification Required; Computing Environment (CE) Certification ; (CCNA satisfies this requirement.);Cisco Certified Network Associate (CCNA) - Required; Ability to successfully complete the Cisco Collaboration Core (CLCOR) exam to support VoIP related requests; ITIL v4 Foundation certification (within 90 days if not held at hire); Cisco Certified Network Professional (CCNP) Preferred; Juniper certification or proven Juniper experience highly desired(e.g., JNCIA, JNCIS); IT Project Management certification preferred(Project+, CAPM, PMP); Fiber Optic Association (FOA) or BICSI certification preferredfor fiber/ISP/OSP work.GDIT IS YOUR PLACE At GDIT, the mission is our purpose, and our people are at the center of everything we do.Growth: AI-powered career tool that identifies career steps and learning opportunitiesSupport ## Description Communications Manager (CUCM).Provides support for COMSEC equipment, cryptographic devices, TACLANEs, and key management; CHIMERA/HAIPE experience a plus.In addition to full technical responsibilities listed above, the Senior Network Administrator will have the opportunity to:Serve as the primary point of contact (POC)for all network issues at their site, coordinating with theater-level leadership, DISA, higher headquarters, mission partners, and other technical teams.Lead and mentor junior technicians, ensuring standardization, proper configuration, and compliance with cybersecurity and operational requirements.Track, manage, and report all site-level network issues, degradation events, risks, maintenance actions, and long-term trends to leadership and program management.Oversee day-to-day work execution, validate task completion, enforce configuration/change management processes, and maintain accurate operational documentation.Lead troubleshooting effortsduring outages or network