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

Job Summary

We are looking for a skilled Senior Associate – Networking with solid 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.
Solid understanding of:
Static and Energetic 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 robust 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 (Good 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
Robust 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
Cisco Nexus Switches
Cisco IOS / NX-OS CLI
Exposure to Juniper Junos is a plus.

Required Skills
Routing & Switching
Cisco ACI
VXLAN / EVPN
F5 BIG-IP or Citrix NetScaler
Network Troubleshooting
Cisco Nexus & Catalyst

Preferred Skills
Juniper Junos
FabricPath
SSL Offloading
Wireshark / tcpdump
ServiceNow
Microsoft Visio

Soft Skills
Excellent verbal and written communication skills.
Strong documentation and network diagramming capabilities.
Ability to work in a collaborative, fast-paced support environment

📌 Routing Switching Networking Expert Chennai
🏢 Cognizant
📍 Chennai