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Sr Subject Matter Expert (Support&Ops)

HCL Technologies Limited

About this role

About the Role Sr Subject Matter Expert (Support&Ops) focused on VMware NSX, providing hands-on implementation, troubleshooting, and operational support for NSX-V/NSX-T environments, including security (DFW), load balancing, overlay networking, routing, and gateway services. The role involves working with VMware tools and cross-functional teams to ensure stable NSX infrastructure. What You'll Do

  • Hands-on implementation and troubleshooting of VMware NSX-V/NSX-T
  • Work on DFW, load balancers, and gateway/firewall configurations
  • Configure and troubleshoot VXLAN/GENEVE overlays, TEP, ARP, MAC, BUM traffic
  • Understand NSX architecture components: logical switching, VNI, distributed routing, bridging, Edge Service Gateway
  • Configure and maintain load balancing (L4/L7), IPsec and L2 VPN Services
  • Packet walk for logical switching, routing, bridging; troubleshoot issues
  • Use VMware tools: VROps, VRLI, VRNI for monitoring and diagnostics
  • Support operations and escalation with NSX intelligence, alarms, events, and federation
  • Knowledge of stretched segments and stretched Tier-0/Tier-1 routing
  • SNAT and DNAT and firewall policies, rules, groups, service and profile context What We're Looking For
  • Hands-on experience with VMware NSX, ESX Server or other VMware products
  • Strong knowledge of NSX-V and NSX-T; DFW and load balancers
  • Knowledge of VXLAN and GENEVE overlay tunnel protocols
  • Understanding of TEP, ARP and MAC Table; handling BUM traffic
  • Logical Switching concepts and VNI; Distributed logical routing, Bridging, Edge Service Gateway
  • Knowledge of load balancing architecture - L4/L7; IPSEC and L2 VPN services
  • Troubleshooting NSX related issues; NSX intelligence; Alarms and Events and NSX Federation
  • Stretched Segments, stretched Tier-0 and Tier-1 routing; SNAT and DNAT
  • Load balancer topology - inline or one-armed
  • Sound knowledge distributed firewall and gateway firewall architecture; firewall policies, rules, groups, service and profile context
  • Working experience with VMware tools such as VROps, VRLI, VRNI
  • Troubleshooting & Implementation Experience in core Routing protocols Nice to Have
  • Basic knowledge of NSX intelligence, Alarms and Events and NSX Federation

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