Network Engineer – Data Center LAN (DCLAN)

About the role We are looking for an experienced Network Engineer – Data Center LAN (DCLAN) to support, maintain, troubleshoot, and optimize enterprise data center network infrastructure. The role will focus on Cisco-based routing and switching, Data Center LAN environments, high availability, network troubleshooting, and operational support. The ideal candidate should have strong hands-on experience with data center networking technologies and be comfortable troubleshooting complex connectivity issues in a production environment. Key responsibilities Design, configure, maintain, and troubleshoot Data Center LAN (DCLAN) infrastructure. Configure and support Cisco switches, routers, and data center networking equipment. Manage VLANs, trunking, access ports, Layer 2/Layer 3 switching, and inter-VLAN routing. Support Top-of-Rack (ToR), End-of-Row (EoR), and Leaf-Spine data center architectures. Configure and troubleshoot Port-Channel/EtherChannel and LACP. Support routing protocols including OSPF and BGP, as well as static and default routing. Implement and troubleshoot STP, HSRP/VRRP, ACLs, and network segmentation. Monitor network health and proactively identify performance, connectivity, and capacity issues. Troubleshoot network incidents involving VLANs, trunks, routing, interfaces, gateways, packet loss, and network loops. Support data center migrations, network upgrades, hardware replacement, rack-and-stack activities, and infrastructure changes. About you 3+ years of solid experience in Data Center LAN / Network Engineering. Strong hands-on experience with Cisco networking technologies. Strong understanding of OSI Model, TCP/IP, TCP/UDP, ARP, IP addressing, subnetting, MAC addresses, and network protocols. Strong understanding of Layer 2 and Layer 3 networking. Hands-on experience with VLANs, access ports, trunk ports, and broadcast domains. Strong knowledge of Spanning Tree Protocol (STP). Hands-on experience supporting Data Center LAN environments. Knowledge of Top-of-Rack (ToR) and End-of-Row (EoR) switching. Understanding of Leaf-Spine architecture and data center network fabrics. Experience with OSPF, BGP, static and default routing, inter-VLAN routing, HSRP/VRRP, ACLs, NAT, STP, and VLAN and trunk configuration.