Top Network Administrator Jobs

Provides Tier I–III administration and engineering support for a DoD network enclave. Responsibilities include LAN/WAN/WLAN design, installation, troubleshooting, network performance analysis, traffic and capacity planning, firewall and router support, switch upgrades, vendor escalation, STIG compliance, patching, security remediation, documentation, and operational support. The role requires a Top Secret clearance, DoD IAT Level II certification, and at least five years of network administration experience in a DoD environment.

Provides hands-on leadership administering, securing, troubleshooting, and maintaining enterprise and tactical network infrastructure supporting Navy mission systems. Configures switches, routers, firewalls, cryptographic devices, and intrusion prevention systems; implements DISA STIGs; performs vulnerability assessments and remediation using ACAS and SCAP; supports IAVMP and RMF activities; maintains network documentation and baselines; leads upgrades and change management; and mentors network personnel.

Supports high-performance data center networking infrastructure through documentation, monitoring, maintenance, troubleshooting, incident investigation, root cause analysis, upgrades, testing, and operational improvements. Works with engineers to deploy and scale networks supporting AI workloads while developing expertise in BGP, ECMP, VXLAN, Spine-Leaf, MCLAG, and RoCEv2. Requires onsite work, up to 20% travel, active TS/SCI with CI Polygraph, and current IAM Level II certification.

Designs, configures, troubleshoots, and maintains complex Layer 2/3 data center networks using BGP, VXLAN, Spine-Leaf fabrics, MCLAG, LACP, and RoCEv2. Supports high-performance and AI-focused workloads, network installations, upgrades, testing, documentation, and incident resolution. Provides technical guidance to junior staff and collaborates with cross-functional teams. The role is onsite five days per week, includes up to 20% domestic and international travel, and requires an active TS/SCI clearance with CI polygraph and IAM Level II certification.

Administers enterprise networks by implementing VLAN, ACL, routing, switching, and port changes; upgrading routers and switches; resolving incidents; performing root-cause analysis; provisioning network and cryptographic devices; drafting SOPs; supporting site surveys, network implementations, and technical refreshes; and applying STIG security guidance. The role requires independent troubleshooting in remote environments and expertise with Cisco, Juniper, routing protocols, TACLANES, and Cisco ISE.

Supports Windows workstations, POS systems, printers, scanners, peripherals, networks, and Android/iOS devices. Responsibilities include hardware deployment, connectivity troubleshooting, specialized system maintenance, and technical support for internal users or clients. The role requires strong Windows proficiency, basic networking knowledge, POS experience preferred, mobile device troubleshooting skills, adaptability, and clear communication with nontechnical users.

Supports, implements, repairs, and maintains wired, wireless, security, cloud, WAN, and data center network infrastructure. Performs troubleshooting, documentation, equipment replacement, security standards implementation, deployment assistance, vendor coordination, and daily network service operations. Collaborates with network engineers, field services, communications, and facilities teams on projects, cabling, and infrastructure management.

Administer, deploy, operate, and maintain Infoblox IPAM systems across enterprise environments. Integrate IPAM with network hardware, peripherals, and services while managing and troubleshooting DNS, DHCP, NTP, subnetting, and broader network infrastructure across on-premises and cloud environments. Produce technical documentation and support DHS enterprise engineering and operations programs.

Administers and secures enterprise network infrastructure supporting the United States Air Force. Responsibilities include configuring routers, switches, firewalls, and cabling; monitoring performance and security; resolving incidents; implementing patches, STIGs, and approved changes; maintaining network documentation and inventory; supporting cloud and hybrid connectivity; coordinating vulnerability remediation and incident response; and providing evidence for RMF and ATO compliance.

Administers and maintains corporate LAN/WAN infrastructure, disaster recovery networking, VoIP systems, security systems, Windows environments, network hardware, and cloud services. Installs, configures, monitors, troubleshoots, repairs, and upgrades network components; manages accounts, connectivity, patches, documentation, testing, and end-user support. Coordinates network solutions, resolves incidents, and supports multi-site infrastructure operations.

Administer and support enterprise Cisco network infrastructure, including routing, switching, wireless, SD-WAN, monitoring, branch and ATM connectivity. Install, configure, patch, upgrade, troubleshoot, and document network systems while monitoring performance and resolving incidents. Lead root-cause analysis for major incidents, support escalations, coordinate with vendors and engineering teams, maintain standards and runbooks, and participate in 24x7 on-call coverage. Travel to remote offices and ATM locations up to 50% of the time.

Supports, monitors, documents, troubleshoots, and maintains high-performance data center networks supporting AI and high-performance computing workloads. The role develops expertise in BGP, ECMP, VXLAN, Spine-Leaf, MCLAG, and RoCEv2; assists with deployments, upgrades, testing, capacity planning, incident response, root cause analysis, and operational improvements. Requires onsite work in McLean, Virginia, travel up to 20%, an active TS/SCI clearance with counterintelligence polygraph, and IAM Level II certification or equivalent.

Supports enterprise network operations across stores, offices, and warehouses. Resolves network tickets and connectivity issues; maintains LAN, WAN, wireless, firewalls, switches, routers, access points, and VoIP systems. Assists with monitoring, reporting, patching, security tasks, documentation, equipment staging, circuit upgrades, store deployments, structured cabling, and maintenance windows. Coordinates with vendors and ISPs, participates in on-call support, and escalates urgent incidents to the Senior Network Administrator.

Provides onsite Tier 1 and Tier 2 support for enterprise IT infrastructure, including servers, storage, networks, mobile devices, operating systems, virtual environments, and user accounts. Responsibilities include troubleshooting, patching, configuration, monitoring, performance optimization, access management, VPN and PKI support, documentation, ticket handling, and status reporting. Supports headquarters and field users while maintaining system reliability and customer service.

Administer and support high-performance computing networks, including switches, routers, firewalls, and server infrastructure. Configure and test networking hardware and software, troubleshoot system issues, perform backups and disaster recovery, monitor performance, and improve network architecture. Maintain firewall and network configurations in STIG compliance, document operations, and provide on-call onsite support. The role also supports network security, hardware integration, and advanced network solutions for an Army supercomputing environment.

Administers and supports enterprise network, server, storage, backup, identity, and operational technology infrastructure. Configures, upgrades, monitors, and troubleshoots hardware, software, applications, databases, and network equipment. Provides advanced user support, manages incidents through resolution, coordinates remediation with internal teams and vendors, and participates in safety, emergency response, turnaround, and after-hours support activities.

Administer campus and data center networks supporting SpaceX operations. Procure, configure, install, monitor, and troubleshoot switches, access points, UPS systems, PDUs, wireless networks, and security controls. Coordinate maintenance outages, perform wireless surveys, build IDF rooms, document network environments, manage hardware inventory, and collaborate with customers, vendors, and contractors on implementation plans.

Administers, secures, optimizes, and modernizes enterprise network infrastructure supporting government operations. Leads routing, switching, wireless, storage networking, troubleshooting, capacity planning, disaster recovery, compliance, and technology refresh initiatives. Serves as a senior technical resource, develops architecture documentation and operational standards, collaborates with cybersecurity teams and stakeholders, and mentors junior administrators.

Maintains and improves wired and wireless network infrastructure across Thunder facilities. Responsibilities include administering firewalls, switches, VPNs, SD-WAN, ZTNA, routing, segmentation, and network services; troubleshooting complex connectivity issues; implementing infrastructure projects and resiliency improvements; maintaining technical documentation; coordinating vendors and carriers; and providing network support during games, events, outages, and maintenance activities.

Manage, troubleshoot, secure, and maintain enterprise network infrastructure, including routers, switches, firewalls, wireless networks, VPNs, and intrusion detection systems. Perform root cause analysis, monitor network performance, plan upgrades, support connectivity across LAN, WAN, CAN, and remote sites, and contribute to IT projects. Participate in after-hours on-call support and collaborate with IT teams to improve network reliability, scalability, and security.

Administer and secure enterprise LAN, WAN, VPN, wireless, and cloud-connected networks. Manage WatchGuard firewalls, site-to-site VPNs, security controls, and network troubleshooting. Operate Rapid7 InsightIDR, including agent deployment, log ingestion, alert investigation, and detection tuning. Investigate cyber threats, remediate vulnerabilities, perform root-cause analysis, and collaborate across teams in a hands-on production environment.

Administers and defends Air Force network infrastructure by analyzing traffic, monitoring utilization and bandwidth, troubleshooting issues, testing configurations, automating tasks with scripts, documenting incidents and changes, and escalating complex problems. The role supports classified and unclassified Department of Defense networks and requires on-site work, an active Secret clearance, IAT-II certification, CCNA certification, and at least five years of relevant network administration experience.

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 and support a large Cisco LAN/WAN and VoIP environment across multiple sites. Responsibilities include configuring Catalyst and Nexus switches, designing VLANs and subnets, managing routing protocols, troubleshooting connectivity and security issues, developing network dashboards and maps, supporting cloud connectivity, resolving VoIP problems, coordinating with vendors, and providing advanced technical support to technical and non-technical stakeholders.

Provides 24/7 Tier II network administration and incident response for a defense intelligence-sharing program. Monitors, maintains, troubleshoots, secures, and optimizes voice, video, and data networks; supports routing, switching, Cisco infrastructure, ITSM processes, compliance, testing, vendor coordination, and service availability. Requires onsite shift work, including weekends and holidays, at MacDill AFB.