Network Administrator

Our client is seeking a skilled Network Administrator to manage the full lifecycle of enterprise campus, data center, and cloud networking environments. This role supports distributed partner networks and ensures high availability, performance optimization, and secure connectivity across LAN, WAN, and WLAN infrastructure. The ideal candidate brings hands-on expertise in network design, routing and switching, MPLS and SD-WAN environments, firewall administration, and advanced troubleshooting, with the ability to operate effectively in complex, multi-site enterprise environments. Key ResponsibilitiesNetwork Architecture & Lifecycle Management Design, implement, and support enterprise LAN, WAN, and WLAN networks, including MPLS-based campus networking environments. Integrate data center networking and cloud networking solutions, including hybrid and distributed architectures. Lead infrastructure upgrades, redesign initiatives, and network lifecycle management planning to ensure scalability and performance. Routing, Switching & Advanced Protocols Configure and support complex Layer 2 and Layer 3 routing and switching environments. Manage and troubleshoot routing protocols including EIGRP, OSPF, BGP, and MPLS, along with core services such as TCP/IP, DNS, and SMTP. Support modern data center technologies including VXLAN and ACI architectures. Perform packet capture analysis, root cause analysis, and advanced network diagnostics to resolve performance issues. Network Security & High Availability Administer and maintain firewall platforms including Cisco ASA/Firepower, Palo Alto, and SonicWall. Configure and support VPN solutions and secure remote access technologies. Manage load balancing and failover configurations using F5 and Citrix platforms to ensure high availability. Maintain 24/7 operational integrity through proactive monitoring, incident response, and performance tuning. Infrastructure Platforms & Tools Support enterprise hardware platforms including Cisco Catalyst and Nexus, Arista, Aruba, and Extreme Wireless. Utilize Cisco Catalyst Center, SD-WAN platforms, AWS networking tools, and network monitoring systems for configuration, automation, and performance visibility. Operations, Collaboration & Mentorship network monitoring and alerting toolsMonitor enterprise network environments using proactive . Participate in an on-call rotation and provide after-hours support as needed to maintain service continuity. Collaborate with vendors, internal IT teams, and business stakeholders on solution design and implementation. Mentor junior network administrators and contribute to technical documentation, knowledge sharing, and operational best practices.