Top Network Administrator Jobs

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.

Leads enterprise systems and network administration, operations, maintenance, outage response, incident management, service continuity, and disaster recovery across USMEPCOM platforms. Directs geographically dispersed technical and contractor teams, oversees interoperability, configuration, testing, security compliance, and outage recovery, and communicates with leadership. Also contributes to technical proposals, oral presentations, solution workshops, and government Q&A preparation.

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.

Administer LAN/WAN, wireless, VPN, firewalls, routers, switches, Windows infrastructure, Active Directory, DNS, and DHCP. Provide onsite and remote support for approximately 200 office and warehouse users, including troubleshooting, onboarding, asset management, and workstation deployment. Coordinate infrastructure projects, vendors, upgrades, cybersecurity initiatives, documentation, and operational improvements. Korean and English bilingual communication is required.

Administers technical compliance and cybersecurity risk programs, including regulatory research, privacy and data governance, vendor assessments, contract reviews, security frameworks, incident response, vulnerability management, audits, training, and remediation tracking. The role coordinates with leadership, business units, vendors, and parent-company risk teams to maintain compliance with HIPAA, HITECH, PCI DSS, privacy laws, cybersecurity standards, and emerging AI regulations.

Administers Windows network infrastructure, Exchange, Office 365, network hardware, desktop systems, connectivity, backups, security controls, software licensing, and technology upgrades. Provides technical support to more than 235 users across over 500 devices, troubleshoots hardware and software issues, monitors system performance, maintains high availability, and supports technology procurement and adoption. Travel to tribal-area offices and occasional work outside normal hours may be required.

Administer Windows network infrastructure, Exchange, Microsoft 365, firewalls, routers, switches, desktops, and communication systems. Provide network and desktop support for more than 500 devices and 235 users; troubleshoot hardware, software, and connectivity issues; manage backups, security controls, licensing, upgrades, maintenance, and technology purchases. Monitor system performance, maintain availability, implement enhancements, and travel to tribal offices as needed.

Administers network infrastructure supporting an Air Force research and development mission. Responsibilities include network administration, firewall management, IT troubleshooting, scripting, virtual machine and system imaging support, software assessments, SCAP implementation, and DISA STIG/CIS Benchmark compliance. The role also provides customer support and requires maintaining secure DoW network environments.

Provides operational support and administration for core LAN, WAN, internet, IP/MPLS, carrier Ethernet, wireless, and data networks. Configures, monitors, secures, troubleshoots, upgrades, and optimizes routers, switches, firewalls, and related infrastructure. Performs vulnerability remediation, patch validation, redundancy testing, backups, QA/QC, documentation, reporting, inventory management, and incident resolution. Supports network expansion projects, guides junior technicians, maintains availability and performance, and provides occasional on-site break/fix assistance.

Coordinates and supports the plant’s OT environment, including Foxboro control systems and supporting infrastructure. Manages routine administration, backups, patching, monitoring, documentation, vendors, and project tasks while partnering with controls engineers and specialists on complex work. Supports system upgrades, expansions, procurement, troubleshooting, network segmentation, access control, and reliability in a 24/7 manufacturing environment.

Administers distributed server, storage, endpoint, and network infrastructure across a large geographic footprint. Responsibilities include network installation, configuration, security, backups, performance tuning, troubleshooting, hardware and software provisioning, vendor coordination, technical support, project tracking, remote-site administration, and after-hours emergency availability. The role requires travel to remote sites or training up to 50% and focuses heavily on networking technologies including firewalls, routers, switches, VPNs, MPLS, and load balancers.

Administers LAN/WAN, wireless, VPN, firewall, Windows Server, Active Directory, DNS, and DHCP environments. Provides onsite and remote support for approximately 200 office and warehouse users, including troubleshooting, onboarding, workstation deployment, and account administration. Coordinates infrastructure upgrades, vendors, asset management, documentation, cybersecurity initiatives, and operational improvements. Requires strong Cisco networking expertise, independent troubleshooting skills, customer service, and English/Korean bilingual communication.

Administer and secure enterprise networks across corporate and manufacturing locations. Responsibilities include managing firewalls, SD-WAN, VPNs, wireless, identity and access controls, cloud connectivity, operational technology security, monitoring, incident response, vulnerability management, documentation, vendor coordination, and technical support. The role also participates in maintenance, on-call support, change management, and security improvements.

Administer and troubleshoot LAN/WAN, routing, switching, VPN, DNS/DHCP, Wi-Fi, Cato Cloud, and VMware environments. Provide Tier 2/3 desktop and end-user support for Windows and macOS, manage onboarding and offboarding tasks, coordinate infrastructure maintenance, document configurations, and support network security, vendors, backups, and continuous improvement initiatives.

Maintains and implements client network, server, desktop, firewall, virtualization, and software environments in a managed services setting. Provides onsite and remote support, documentation, audits, training, project assistance, and rotating on-call coverage. Develops RPA and AI-powered automation workflows, tracks automation ROI, improves processes, and deploys solutions across clients. Acts as a trusted technical advisor, manages an assigned client portfolio, coordinates vendors, supports client success, and shares technical knowledge with team members.

Administers Orange EV’s Microsoft-based IT environment, including Windows Server, Active Directory, Entra ID, Microsoft 365, virtualization, endpoints, and network infrastructure. Responsibilities include identity and access management, PowerShell automation, monitoring, backups, disaster recovery, incident response, documentation, compliance support, and vendor coordination. The role is fully on-site and also manages IT project schedules, budgets, milestones, and deliverables.

Maintains LAN/WAN, wireless, VPN, firewall, and Windows infrastructure supporting approximately 200 office and warehouse users. Provides end-user support, manages Active Directory and network services, troubleshoots hardware and connectivity issues, coordinates vendors, maintains documentation and assets, and supports infrastructure upgrades, cybersecurity initiatives, onboarding, and operational improvement projects.

Manage and maintain complex global network infrastructure, including F5 BIG-IP, Cisco, and HPE Aruba platforms. Investigate and resolve network outages, performance issues, and security incidents; perform upgrades, configuration changes, monitoring, and on-call support. Lead automation initiatives using Python and Ansible, maintain technical documentation, and collaborate with systems, security, and application teams. The role requires 5–7 years of experience and professional vendor certifications are preferred.

Administers and designs LAN, WAN, and VPN infrastructure; configures Cisco routers, switches, firewalls, and related network hardware; monitors network performance; develops documentation; evaluates future communications needs; coordinates third-party maintenance; and supports network architecture and troubleshooting. The role is full-time onsite in Redondo Beach, requires a Secret clearance, DoD 8570 IAT Level II certification, and occasional travel.