We are looking for an experienced Core Network Engineer to support a large-scale APAC Network Fleet Management Program involving Cisco Nexus hardware refreshes, Arista MOS-to-EOS migrations, and Cisco Catalyst/Nexus management network refresh activities across multiple global data centers.
The engineer will be responsible for planning, migration execution, configuration management, validation, troubleshooting, and technical ownership throughout the project lifecycle.
Job Location - Mumbai (Chandivali)
Responsibilities
Planning & Discovery
Participate in technical discovery workshops.
Validate device inventory, interface mappings, and network topology.
Review configuration baselines and migration prerequisites.
Assess site-specific technical dependencies.
Network Migration
Execute Cisco Nexus 3172 hardware refreshes.
Perform Arista 7130 MOS to EOS migrations.
Refresh Cisco Catalyst 3850 & Nexus 3048 management networks.
Execute software upgrades and firmware migrations.
Manage switch reloads and maintenance window activities.
Configuration Management
Take complete configuration backups.
Capture routing tables, MAC tables, STP topology, CPU & Memory utilization.
Stage software images via SFTP/HTTPS.
Push production configurations during cutover.
Validation
Verify
BGP
OSPF
VLANs
Port Channels
Interface status
Optical links
Trunk configurations
TACACS+
RADIUS
MFA
SNMP
Syslog
Troubleshooting
Analyze routing issues.
Interface flaps.
Packet drops.
Optical failures.
Hardware issues.
Boot failures.
OEM escalation (Cisco TAC / Arista TAC).
Documentation
Prepare operational runbooks.
Update Fleet Execution Tracker.
Capture CLI logs.
Prepare validation reports.
Support project closure documentation.
Required Technical Skills
Networking
Cisco Nexus 3K Series
Cisco Catalyst 3850
Nexus 3048
Arista 7130
Routing & Switching
BGP
OSPF
STP
VLAN
VPC
Port Channel
VRF
Operating Systems
Cisco NX-OS
Arista EOS
MOS Migration
Network Services
TACACS+
RADIUS
AAA
SNMP
Syslog
N