Network Engineer+ (ACI) (Mumbai)

Network Engineer+ (ACI) (Mumbai) Company: Talent Vision Services Job Location: Mumbai, Maharashtra, India Employment Type: Full-time Experience Required: 4 - 5 years Job Description Network Engineer L3+ / Cisco ACI Position: Network Engineer L3+ Experience: 9+ Years Overall | 45 Years Relevant Experience Location: BKC, Mumbai Work Mode: Work from Office (WFO) Shift: Rotational Shifts Applicable Job Summary We are looking for an experienced Network Engineer L3+ with strong hands-on expertise in Routing, Switching, and Cisco ACI to manage, troubleshoot, and support enterprise network infrastructure. The candidate will be responsible for L3-level incident resolution, network performance, configuration, troubleshooting, and implementation across data center and enterprise environments. Key Responsibilities Manage and troubleshoot enterprise LAN/WAN and Data Center networks at L3 level, ensuring high availability, performance, and SLA compliance. Strong hands-on experience with Cisco ACI (Application Centric Infrastructure) including fabric architecture, tenants, VRFs, Bridge Domains, EPGs, contracts, VLAN/VXLAN, and endpoint troubleshooting. Configure and troubleshoot Cisco routing and switching technologies including OSPF, BGP, EIGRP, VLAN, STP/RSTP/MST, EtherChannel, HSRP/VRRP, and TCP/IP. Perform advanced troubleshooting of routing, switching, connectivity, packet loss, latency, interface, VLAN, routing protocol, and network performance issues. Manage data center networking, including spine-leaf architecture, VXLAN/EVPN concepts, Layer 2/Layer 3 connectivity, and redundancy. Handle complex L3 incidents, problem management, RCA, and service restoration activities within defined SLAs. Perform network configuration, upgrades, migrations, maintenance activities, and implementation of approved changes following change-management processes. Monitor network health and performance using NMS/monitoring tools, analyze alerts, and proactively identify potential issues. Troubleshoot network security and connectivity issues involving firewalls, ACLs, NAT, VPN, load balancers, and network security controls. Work with Cisco, Palo Alto/Fortinet/Cisco Firepower, F5 or other OEM technologies as part of enterprise network infrastructure. Coordinate with ISP, OEM, NOC, Security, Server, Cloud, and Application teams for complex incidents and infrastructure changes. Participate in major incident/bridge calls, provide technical leadership, and drive incidents through resolution. Maintain network documentation, topology diagrams, configuration standards, operational procedures, and knowledge-base articles. Conduct capacity planning, network optimization, vulnerability remediation, firmware/software upgrades, and lifecycle activities. Support ITIL-based Incident, Problem, Change, and Service Request management processes. Required Technical Skills Primary Skills: Cisco ACI Cisco Routing & Switching Enterprise LAN/WAN Data Center Networking L3 Troubleshooting Routing & Switching: BGP, OSPF, EIGRP VLAN, Trunking, STP/RSTP/MST EtherChannel/LACP HSRP/VRRP TCP/IP, ARP, DHCP, DNS IPv4/IPv6 Routing and switching troubleshooting Cisco ACI: ACI Fabric architecture APIC administration Spine & Leaf Tenants, VRFs, Bridge Domains EPGs and Contracts VLAN/VXLAN Endpoint learning and troubleshooting L2/L3 Outside Connectivity ACI fault and health-score analysis Additional Networking Skills: Cisco Nexus/Catalyst platforms SD-WAN concepts Network security fundamentals Firewalls, ACLs, NAT and VPN Load Balancers F5 or equivalent Wireless networking fundamentals Network monitoring and management tools Packet analysis using Wireshark/TCPDump Network automation/Ansible or Python is an added advantage Cloud networking concepts AWS/Azure is an advantage Experience & Qualifications 9+ years of overall experience in Network Engineering/Infrastructure. 45 years of relevant hands-on experience in enterprise/data center networking with solid exposure to Cisco ACI, Routing and Switching. Strong experience in L3 production support and complex network troubleshooting. Experience working in 24x7 enterprise environments and rotational shifts. Strong analytical, troubleshooting, communication, documentation, and stakeholder-management skills. Relevant Cisco certifications such as CCNP Data Center / CCNP Enterprise will be an added advantage .