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 environments.





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)
🏢 NTT DATA Business Solutions
📍 Kolkata