Network Engineer (Routing, Switching, ACI & Load Balancing)

Job Summary

We are looking for a skilled Senior Associate – Networking with strong experience in Routing, Switching, Cisco ACI, VXLAN/EVPN, and Load Balancing technologies. The ideal candidate should possess hands-on troubleshooting expertise, operational support experience, and the ability to manage enterprise network infrastructure in a large-scale environment.

Key ResponsibilitiesRouting & Network Fundamentals
- Hands-on experience with OSPF and BGP routing protocols.
- Strong understanding of:
- Static and Dynamic Routing
- Route Redistribution
- Routing Tables, Metrics, and Convergence Behavior
- Good knowledge of IPv4/IPv6 addressing, including:
- Subnetting
- VLSM
- CIDR

High Availability Technologies
- Experience with network redundancy and failover solutions:
- HSRP
- VRRP

Switching
- Strong understanding of:
- VLANs and 802.1Q Trunking
- Spanning Tree Protocols (STP/RSTP/MST)
- Layer 2 and Layer 3 Switching
- EtherChannel and LACP

Cisco ACI, VXLAN & EVPN
- Hands-on experience or strong exposure to:




- VXLAN Architecture
- EVPN Control Plane
- Cisco ACI Fabric
- Spine-Leaf Architecture
- APIC Controller
- Knowledge of:
- vPC
- FabricPath (Good to Have)

Load Balancing (F5 BIG-IP / Citrix NetScaler)
- Experience with:
- Local Traffic Manager (LTM)
- Virtual Servers, Pools, and Nodes
- SSL Offloading (Positive to Have)
- Understanding of:
- Load Balancing Algorithms (Round Robin, Least Connections, Ratio-Based)
- Session Persistence / Stickiness
- Health Checks and Monitoring
- Layer 4 and Layer 7 Load Balancing
- SNAT/NAT Configuration
- High Availability and Clustering (Active-Standby)

Troubleshooting & Operations
- Strong troubleshooting skills involving:
- Ping, Traceroute
- Routing Table Analysis
- Network Incident Management
- Exposure to:
- Wireshark / tcpdump (Good to Have)
- ServiceNow Ticketing Tool (Good to Have)

Network Platforms
- Hands-on experience with:
- Cisco Catalyst Switches
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📌 Routing Switching Networking (Chennai)
🏢 Cognizant
📍 Chennai