Top Network Administrator Jobs

Administer and troubleshoot enterprise network infrastructure supporting a 24/7 transportation management center. Responsibilities include configuring Extreme switches and Sophos firewalls, managing routing, VLANs, redundancy, VPNs, telecommunications, fiber and wireless connectivity, ITS field-device integration, network monitoring, cybersecurity controls, documentation, and outage response. The role also supports Windows Server and Microsoft 365 environments and coordinates technical resolution with agencies, vendors, contractors, and internal IT teams.

Provides senior-level administration and oversight of enterprise voice and data networks. Configures and maintains LAN/WAN infrastructure, wireless systems, firewalls, VoIP, cabling, and network equipment. Performs network upgrades, troubleshooting, capacity planning, and lifecycle forecasting. Leads structured cabling installations, ensures BICSI compliance, and partners with architectural and engineering teams on cable pathway design. The role also requires cabling testing, documentation, blueprint interpretation, and adherence to infrastructure standards.

Maintain and optimize LAN, WAN, and VPN environments; design, configure, install, monitor, and troubleshoot network hardware and software. The role develops network solutions, prepares documentation, coordinates third-party maintenance, conducts network analysis and capacity planning, and supports infrastructure architecture. Requires Cisco networking expertise, a current Secret clearance, DoD 8570 IAT Level II certification, and on-site work in Redondo Beach, California.

Administers and defends WAN network infrastructure supporting Air Force and Department of Defense operations. Responsibilities include analyzing network traffic, testing configurations, monitoring utilization and circuit bandwidth, automating tasks with scripts, troubleshooting anomalies, and documenting incident and change-request activities. The role requires extensive experience configuring and hardening routers, switches, serial consoles, and load balancers, along with enterprise network architecture expertise, IAT-II and CCNA certifications, and an active Secret clearance.

Administer, maintain, monitor, and troubleshoot enterprise network infrastructure in a DoD environment. The role manages routers, switches, firewalls, and security appliances across Cisco, Juniper, F5, and Palo Alto platforms. Responsibilities include network configuration, performance monitoring, incident response support, vulnerability remediation, access controls, compliance reviews, documentation, and collaboration with cybersecurity and infrastructure teams. The position requires five or more years of experience, Security+ or equivalent certification, U.S. citizenship, and an active Top Secret clearance.

Administers, designs, configures, monitors, troubleshoots, defends, and maintains USSOCOM LAN/WAN infrastructure, including routers, switches, VLANs, wireless networks, VPNs, circuits, and encryption devices. Provides Tier 1 and 2 support, performance reporting, equipment management, compliance research, implementation planning, outage restoration coordination, and full lifecycle network support. May require shift work or nonstandard schedules.

Supports, troubleshoots, designs, deploys, and maintains enterprise network infrastructure. Performs advanced routing and switching troubleshooting, configuration changes, network upgrades, and geographically dispersed deployments. Requires expertise with OSPF, BGP, GRE, VPN, VRF, HAIPE, TACLANE, Cisco, and Juniper equipment. Works independently and leads complex technical investigations while supporting production environments and customer mission objectives.

Supports, troubleshoots, designs, deploys, and maintains enterprise network infrastructure. Performs routing and switching configuration, VLAN and ACL changes, route advertisements, network upgrades, and advanced incident resolution. Requires expertise with OSPF, BGP, GRE, VPN, VRF, HAIPE, and TACLANE technologies, along with Cisco and Juniper equipment. Works independently across geographically dispersed locations and leads complex technical investigations.

Supports and maintains enterprise network infrastructure as a Tier 3 technical resource. Performs advanced troubleshooting, routing and switching diagnosis, network changes, deployments, upgrades, and technical refreshes across distributed locations. Designs and implements network solutions, resolves complex incidents, and supports OSPF, BGP, GRE tunnels, VPNs, VRFs, HAIPEs, and TACLANEs. Requires Cisco and Juniper experience, CCNA, IAT II, and an active TS/SCI clearance with CI polygraph eligibility.

Monitors and troubleshoots LAN/WAN networks, circuits, devices, firewalls, VPNs, and intrusion detection systems. Resolves incidents, escalates complex issues, coordinates hardware and software upgrades, maintains network documentation and inventories, produces monitoring reports, and supports network security and performance. The role also interfaces with engineers, vendors, customers, and USSOCOM stakeholders while supporting potential shift work.

Administer and support enterprise Windows systems, Microsoft services, cloud environments, servers, firewalls, networks, VPNs, and distributed infrastructure. Responsibilities include monitoring, patching, troubleshooting, incident response, backups, certificate management, change control, documentation, automation, and site deployments. The role provides Tier 2 support, coordinates vendors and carriers, participates in on-call rotations, and partners with engineering and security teams on infrastructure changes and operational improvements.

Leads the design, implementation, architecture, migration, monitoring, and support of large-scale classified networks. Defines network roadmaps and standards, ensures security and compliance, provides advanced troubleshooting and third-level support, coordinates vendors, engages government customers, supports technical proposals, and mentors network personnel. The role requires on-site work, after-hours support as needed, handling equipment up to 50 pounds, and maintaining a Top Secret/SCI clearance with counterintelligence polygraph eligibility.

Designs, deploys, secures, and sustains multi-site classified and unclassified network infrastructure supporting space missions. Responsibilities include configuring network devices, firewalls, encryptors, and monitoring tools; performing STIG hardening, vulnerability remediation, firmware upgrades, and RMF support; developing automation; maintaining documentation and asset controls; and troubleshooting mission-critical networks. The role also supports site surveys, infrastructure buildouts, ISP connectivity, program meetings, and technical leadership across launch, factory, test, and mission environments.

Administers enterprise wireless and network infrastructure for a federal client. Performs wireless surveys and designs, configures Cisco network equipment, troubleshoots connectivity and interference, analyzes root causes, resolves tickets, documents work, and supports outages and customer requests. The role requires on-site work, on-call availability, travel across the DC-MD-VA area, collaboration with federal and IT teams, and an active Public Trust clearance.

Administers and supports computer systems, servers, network equipment, phones, desktops, peripherals, and software across six municipal sites. Responsibilities include installation, configuration, troubleshooting, maintenance, upgrades, hardware and software diagnostics, network administration, end-user support and training, business continuity and disaster recovery planning, and crisis response. The role works with Windows, Azure, Active Directory, networking equipment, virtual environments, backups, and Microsoft productivity platforms.

Administers and maintains voice, video, and data networks for the US BICES-X program. Responsibilities include 24/7 incident response, network monitoring, troubleshooting, performance optimization, security compliance, STIG patching, vendor coordination, testing, documentation, and Tier II support. The role requires shift work, including weekends and holidays, and supports network availability and service-level requirements in a classified defense environment.

Supports enterprise network infrastructure by resolving Tier 1 and Tier 2 incidents, fulfilling service requests, monitoring and troubleshooting networks, managing circuits, and maintaining documentation. Installs and configures Cisco, Meraki, and Versa equipment; supports authentication, routing, expansions, site buildouts, upgrades, and hardware refreshes. Uses ServiceNow and Azure DevOps, collaborates with engineers, participates in on-call support, and travels to sites at least once every six weeks.

Administers and secures district-wide on-premises and cloud infrastructure, including networks, virtualization, Windows servers, Microsoft 365, Azure/Entra identity, Active Directory, backups, and disaster recovery. Provides Tier 2/3 technical support, monitors system health, manages access controls and compliance features, troubleshoots escalated incidents, documents configurations, and supports campus technology teams.

Administer, configure, deploy, sustain, and troubleshoot Air Operations Center systems and networks. Manage Windows and Linux environments, Active Directory, virtualization, enterprise services, LAN/WAN/SAN infrastructure, routing, switching, firewalls, storage, patches, security controls, tickets, migrations, upgrades, and validation activities. Support fielding, configuration management, technical reviews, and mission-critical Air Force operations while maintaining required documentation and system readiness.

Provides Tier 2 enterprise network administration, including router and switch configuration, VLAN and ACL changes, IOS upgrades, routing and switching operations, incident resolution, root cause analysis, network installations, technical refreshes, SOP development, and STIG implementation. Supports remote sites, network ticket resolution, site surveys, engineering data calls, and provisioning of network and cryptographic devices.

Designs, implements, secures, and supports enterprise LAN, WAN, wireless, cloud, hybrid, voice, and security infrastructure across multiple locations. Administers Cisco, Meraki, Palo Alto, Azure, Microsoft 365, SD-WAN, and VoIP environments; troubleshoots complex connectivity and security issues; supports incident response and business continuity; leads infrastructure projects and vendor engagements; maintains documentation; provides Tier III support and technical mentorship; and participates in on-call and after-hours maintenance.

Manages and maintains network infrastructure across 148 campuses, including Cisco equipment, monitoring, IP allocation, configuration backups, troubleshooting, upgrades, and outage recovery. Implements network security controls aligned with ISO 27001, maintains documentation and topology maps, supports data center reliability, and collaborates with IT, security, service desk, and other technical teams. Provides user support and may perform campus visits, after-hours maintenance, and emergency response.

Manage enterprise network infrastructure, including WAN circuits, Layer 3 switching, Azure integration, VPNs, firewalls, proxies, NAC, IPS, and wireless networks. Administer G-Cloud and on-premise Windows servers, Active Directory, DHCP, MECM, file servers, and plant systems. Provide Tier 1 and Tier 2 support, troubleshoot infrastructure and security issues, support IT projects, and collaborate with local, remote, and AWS teams. English/Korean bilingual capability is required.

Maintains, installs, configures, monitors, and documents classified voice and data network infrastructure. Supports routers, switches, firewalls, authentication servers, encryptors, network management platforms, and related software. Performs network analysis, troubleshooting, upgrades, documentation, and third-party maintenance coordination. Works onsite in classified computing areas, may support after-hours activities, and must obtain Security+ and CCNA certifications within specified timeframes.

Administers and secures enterprise network infrastructure across multiple facilities and cloud environments. Manages LAN, WAN, wireless, VPN, SD-WAN, firewalls, voice, identity, vulnerability, and security operations. Leads incident response, business continuity, disaster recovery, vendor management, cybersecurity governance, audits, and remediation programs. Provides executive reporting, documentation, after-hours escalation support, and oversight of SOC/MDR services while partnering with IT, business stakeholders, carriers, and security providers.