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Salary
≈ $16k – $41k per year (Estimated)
Location
In office (Noida)
Seniority
Staff

Confirmed on the employer's own hiring board on Oct 22, 2026. First seen by Alion on Oct 21, 2026.

Overview
Company
Impact
Profile match
HCLTech is a major Indian multinational information technology (IT) services and consulting company headquartered in Noida, Uttar Pradesh. Spun off from the original HCL Group in 1991, it ranks as one of India's largest technology companies alongside firms like TCS, Infosys, and Wipro.

Job Summary

Provide L3 operational support for enterprise LAN, WAN, WLAN, routing and switching environments. Troubleshoot complex network connectivity, latency, packet loss, routing, switching, and performance issues. Configure and support Cisco routers and switches, including enterprise campus and data-center networking environments. Manage and troubleshoot routing protocols such as BGP, OSPF and EIGRP, as applicable. Support VLANs, STP/RSTP/MSTP, HSRP/VRRP, trunks, port channels, ACLs, NAT and QoS. Troubleshoot WAN technologies, VPN connectivity, MPLS and internet connectivity. Perform packet-level troubleshooting using tools such as Wireshark and device-level diagnostics. Execute complex network changes, upgrades, migrations, configuration changes, and post-change validation. Perform root cause analysis for recurring and major network incidents and drive permanent corrective actions. Participate in Major Incident Management, providing technical troubleshooting and restoration support. Work with carriers, ISPs, OEM vendors and other infrastructure/application teams for complex issue resolution. Review network alerts, capacity, utilization, availability, and performance trends. Support network hardware lifecycle activities including device replacement, upgrades, configuration backup and recovery. Maintain network diagrams, technical documentation, SOPs, troubleshooting guides and knowledge articles. Provide technical guidance and escalation support to L1/L2 engineers. Ensure operational activities comply with Incident, Change, Problem, Configuration and Security Management processes. Participate in 24x7 rotational/on-call support for critical network infrastructure.

Key Responsibilities

Provide L3 operational support for enterprise LAN, WAN, WLAN, routing and switching environments. Troubleshoot complex network connectivity, latency, packet loss, routing, switching, and performance issues. Configure and support Cisco routers and switches, including enterprise campus and data-center networking environments. Manage and troubleshoot routing protocols such as BGP, OSPF and EIGRP, as applicable. Support VLANs, STP/RSTP/MSTP, HSRP/VRRP, trunks, port channels, ACLs, NAT and QoS. Troubleshoot WAN technologies, VPN connectivity, MPLS and internet connectivity. Perform packet-level troubleshooting using tools such as Wireshark and device-level diagnostics. Execute complex network changes, upgrades, migrations, configuration changes, and post-change validation. Perform root cause analysis for recurring and major network incidents and drive permanent corrective actions. Participate in Major Incident Management, providing technical troubleshooting and restoration support. Work with carriers, ISPs, OEM vendors and other infrastructure/application teams for complex issue resolution. Review network alerts, capacity, utilization, availability, and performance trends. Support network hardware lifecycle activities including device replacement, upgrades, configuration backup and recovery. Maintain network diagrams, technical documentation, SOPs, troubleshooting guides and knowledge articles. Provide technical guidance and escalation support to L1/L2 engineers. Ensure operational activities comply with Incident, Change, Problem, Configuration and Security Management processes. Participate in 24x7 rotational/on-call support for critical network infrastructure.

Skill Requirements

Provide L3 operational support for enterprise LAN, WAN, WLAN, routing and switching environments. Troubleshoot complex network connectivity, latency, packet loss, routing, switching, and performance issues. Configure and support Cisco routers and switches, including enterprise campus and data-center networking environments. Manage and troubleshoot routing protocols such as BGP, OSPF and EIGRP, as applicable. Support VLANs, STP/RSTP/MSTP, HSRP/VRRP, trunks, port channels, ACLs, NAT and QoS. Troubleshoot WAN technologies, VPN connectivity, MPLS and internet connectivity. Perform packet-level troubleshooting using tools such as Wireshark and device-level diagnostics. Execute complex network changes, upgrades, migrations, configuration changes, and post-change validation. Perform root cause analysis for recurring and major network incidents and drive permanent corrective actions. Participate in Major Incident Management, providing technical troubleshooting and restoration support. Work with carriers, ISPs, OEM vendors and other infrastructure/application teams for complex issue resolution. Review network alerts, capacity, utilization, availability, and performance trends. Support network hardware lifecycle activities including device replacement, upgrades, configuration backup and recovery. Maintain network diagrams, technical documentation, SOPs, troubleshooting guides and knowledge articles. Provide technical guidance and escalation support to L1/L2 engineers. Ensure operational activities comply with Incident, Change, Problem, Configuration and Security Management processes. Participate in 24x7 rotational/on-call support for critical network infrastructure.

Other Requirements

Provide L3 operational support for enterprise LAN, WAN, WLAN, routing and switching environments. Troubleshoot complex network connectivity, latency, packet loss, routing, switching, and performance issues. Configure and support Cisco routers and switches, including enterprise campus and data-center networking environments. Manage and troubleshoot routing protocols such as BGP, OSPF and EIGRP, as applicable. Support VLANs, STP/RSTP/MSTP, HSRP/VRRP, trunks, port channels, ACLs, NAT and QoS. Troubleshoot WAN technologies, VPN connectivity, MPLS and internet connectivity. Perform packet-level troubleshooting using tools such as Wireshark and device-level diagnostics. Execute complex network changes, upgrades, migrations, configuration changes, and post-change validation. Perform root cause analysis for recurring and major network incidents and drive permanent corrective actions. Participate in Major Incident Management, providing technical troubleshooting and restoration support. Work with carriers, ISPs, OEM vendors and other infrastructure/application teams for complex issue resolution. Review network alerts, capacity, utilization, availability, and performance trends. Support network hardware lifecycle activities including device replacement, upgrades, configuration backup and recovery. Maintain network diagrams, technical documentation, SOPs, troubleshooting guides and knowledge articles. Provide technical guidance and escalation support to L1/L2 engineers. Ensure operational activities comply with Incident, Change, Problem, Configuration and Security Management processes. Participate in 24x7 rotational/on-call support for critical network infrastructure.

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