Top Network Administrator Jobs

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.

Operates and maintains an enterprise military base network, performing health checks, monitoring, ticket resolution, switching and routing troubleshooting, configuration backups, STIG compliance, vulnerability remediation, and change management. Supports telecom-room inspections, network installations, modernization upgrades, vendor coordination, scheduled maintenance, and on-call operations. Requires clear documentation, customer communication, and adherence to production change controls.

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.

Administers and supports an industrial control network, including network hardware and software installation, configuration, monitoring, troubleshooting, testing, backups, repairs, documentation, and user training. Maintains DNS and DHCP services, inventories network assets, coordinates software updates, develops operating procedures, and ensures compliance with standards. Requires three years of network administration experience, a qualifying certification, U.S. citizenship, and Secret clearance eligibility.

Administers and supports complex enterprise networks across data centers and cloud environments. Responsibilities include network design, implementation, migration, troubleshooting, performance monitoring, security hardening, documentation, lifecycle management, and administration of Palo Alto firewalls and Cisco networking equipment. The role also supports DoD cybersecurity compliance, patch management, STIGs, disaster recovery, automation, and mission-critical Army IT services.

Manage and maintain network infrastructure, servers, virtualization platforms, cloud services, backups, and security controls. Monitor performance, troubleshoot hardware and software issues, support end users, document configurations, and assist with infrastructure upgrades. The role also requires maintaining Windows and Linux environments, automating tasks through scripting, ensuring data protection, and supporting compliance with IT and security policies.

Manages lifecycle provisioning and inventory of more than 20 million Department of Navy IP addresses. Processes allocation requests, forecasts address capacity, maintains databases and user accounts, coordinates Department of Defense IP administration, supports application testing, and develops SOPs and user guides. The role also manages IP portfolios, resolves data discrepancies, and supports stakeholders across Navy operational commands.

Manage and troubleshoot enterprise network infrastructure across on-premises and cloud environments, including routing, switching, wireless, firewalls, WAN, voice, and network security. Support hybrid networking, physical security systems, disaster recovery, office expansions, vendor coordination, monitoring, documentation, and network performance optimization. Collaborate with Systems and Security teams to resolve incidents, mitigate vulnerabilities, and maintain reliable, secure connectivity.

Administers and secures network infrastructure, including hardware, software, connectivity, firewalls, intrusion detection systems, and encryption. Troubleshoots complex network, hardware, software, and security issues; monitors performance; conducts security assessments; investigates incidents; implements corrective actions; documents system changes; supports vendors and users; and collaborates with IT teams to improve network security and reliability.

Administers and secures distributed DoD networks, including Windows and RHEL images, Cisco LAN/WAN infrastructure, firewalls, access controls, STIG compliance, ACAS scanning, patching, backups, troubleshooting, performance reporting, and network solution design. The role requires active Secret clearance, U.S. citizenship, advanced Cisco configuration skills, and Security+ or equivalent compliance.

Provides network administration support for NIWC Pacific and the U.S. Pacific Fleet. Designs, installs, operates, and maintains networks; supports virtual environments; manages network enhancements and technology installations; trains IT personnel; oversees IT task completion; coordinates vendors and procurement; and supports cybersecurity compliance requirements. On-call and emergency work are required, but travel is not.