{"id":3791294,"url":"https://alion.io/job/hcltech-track-lead-network-lanwan-12","title":"Track Lead - Network LAN/WAN","company":{"id":225,"name":"HCLTech","domain":"hcltech.com","url":"https://alion.io/company/hcltech","size_band":"5000+","is_staffing_agency":false,"employer_type":"services","is_intermediary":false,"listed_via":null,"ats_vendor":"SuccessFactors","truth_index":null},"role":"Networking","role_family":"Networking","seniority":"lead","employment_type":null,"work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Noida, India"],"countries":["IN"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":null,"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"BGP","optional":false},{"name":"ITIL","optional":false},{"name":"MPLS","optional":false},{"name":"OSPF","optional":false},{"name":"Speech Recognition","optional":false},{"name":"TCP/IP","optional":false},{"name":"VLAN","optional":false},{"name":"VMWare","optional":false},{"name":"VPN","optional":false}],"status":"live","first_seen_at":"2026-11-05T06:45:07Z","employer_posted_date":"2026-11-05","last_verified_at":"2026-11-08T18:05:48Z","board_verified":true,"closed_at":null,"days_open":3,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":3},"description":"Job Summary\nn experienced L3 Network Data Engineer (LAN/WAN) to lead advanced troubleshooting, incident restoration, problem management, and proactive optimization of enterprise LAN, WAN, SD-WAN, and routing/switching environments. This role provides Tier-3 escalation support, owns complex technical issues end-to-end, drives root cause analysis (RCA), implements network changes, and ensures high availability, performance, and security of the network infrastructure across data centers, campuses, and remote sites.\nKey Responsibilities\nL3 Operations & Escalation Support\nProvide Tier-3 (L3) escalation for LAN/WAN incidents, including major incidents (P1/P2); restore service within SLA and lead technical bridges when required.\nPerform advanced troubleshooting across:\nRouting: OSPF, BGP, EIGRP (where applicable), route redistribution, policy-based routing\nSwitching: VLANs, STP/RSTP/MST, LACP, trunking, port-security\nWAN/SD-WAN: MPLS, Internet VPN, DIA, SD-WAN overlays/underlays, path selection\nSupport and tune QoS for voice/video/business-critical apps (classification, marking, queuing, shaping/policing).\nEnsure network stability by identifying recurring patterns and driving permanent fixes.\nSkill Requirements\nStrong hands-on experience with enterprise LAN & WAN operations and troubleshooting.\nDeep understanding of:\nTCP/IP, subnetting, routing protocols (BGP/OSPF), switching fundamentals (STP/VLAN/LACP)\nWAN technologies: MPLS, IPsec VPN, GRE, DMVPN (if applicable), Internet edge routing\nSD-WAN concepts: overlay/underlay, controller/orchestrator operations, policy/routing\nQoS and traffic engineering\nExperience with network platforms such as:\nCisco (Catalyst, Nexus, ISR/ASR, WLC), Juniper, Arista, Fortinet, Palo Alto, VMware NSX (any relevant mix)\nStrong knowledge of operational processes:\nIncident/Problem/Change Management (ITIL), RCA, post-incident review\nOther 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