Job Summary

We are seeking a highly skilled and experienced L3 Network Engineer to join our Network Operations and Engineering team. The ideal candidate will possess deep expertise in Cisco ACI, Versa SD-WAN, enterprise Routing Switching, and network troubleshooting. The role requires providing Level 3 support, designing, implementing, optimizing, and maintaining complex enterprise network infrastructures while ensuring high availability, performance, and security.

Key Responsibilities Network Operations Support
Provide Level 3 support for enterprise network infrastructure and critical incidents.
Act as the technical escalation point for complex network issues.
Perform root cause analysis (RCA) and implement permanent fixes for recurring problems.
Lead major incident resolution and problem management activities.

Cisco ACI Administration
Design, deploy, configure, and troubleshoot Cisco ACI environments.
Manage ACI Fabric, Tenant configurations, VRFs, Bridge Domains, EPGs, Contracts, and L3Outs.
Perform firmware upgrades and maintenance activities within ACI settings.





Versa SD-WAN Management
Configure, administer, and troubleshoot Versa SD-WAN infrastructure.
Manage Controllers, Director, Analytics, and Edge devices.
Implement application-aware routing, segmentation, and security policies.
Support WAN optimization and network transformation initiatives.

Routing Switching
Configure and troubleshoot Layer 2 and Layer 3 network technologies.
Manage enterprise routing protocols including:
BGP
OSPF
EIGRP
IS-IS (preferred)
Configure and support switching technologies:
VLANs
Stp/rstp/mst
EtherChannel/LACP
VPC
Hsrp/vrrp
VXLAN (preferred)
Perform network capacity planning and optimization.

Network Security Compliance
Work closely with security teams to implement network security controls.
Support access control, segmentation, and secure network designs.
Ensure adherence to organizational and industry standards.

📌 Technical Specialist Kolkata (India)
🏢 NTT DATA Business Solutions
📍 India