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Support and maintain enterprise LAN/WAN infrastructure: deploy, configure, and troubleshoot Cisco/Juniper devices, routers, switches, and firewalls; monitor network performance; perform preventive maintenance; troubleshoot routing, VLANs, TCP/IP, DNS, DHCP, VPN; support server infrastructure and network upgrade projects while collaborating with internal teams and external partners.

Lead design, implementation, and management of enterprise network systems. Build and maintain LAN/WAN environments and server operations, provision and troubleshoot WAN circuits, configure Cisco/Juniper devices, and manage routing, switching, firewalls, VPNs, DNS, DHCP, and VLANs. Plan and execute infrastructure projects, document architecture and implementation, coordinate stakeholders and vendors, and provide post-project support and optimization.