Senior Administrator - Network LAN/WAN
India
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Job Description
Senior Administrator - Network LAN/WAN
Noida, Uttar Pradesh

Job Summary

Network Wireless L2.5 Engineer with 6+ years of relevant experience in enterprise wireless network operations, including WLC and Wireless Access Point management. Responsible for configuration, advanced troubleshooting, incident resolution, wireless performance analysis, network changes, RCA, and operational support of enterprise Wi-Fi infrastructure.

Key Responsibilities

Manage and troubleshoot Wireless LAN Controllers (WLC) and Wireless Access Points (WAP/AP). • Configure and support WLANs, SSIDs, RF parameters, AP groups, and wireless policies. • Troubleshoot wireless connectivity, authentication, roaming, interference, coverage, latency, and performance issues. • Monitor WLC/WAP health, utilization, client connectivity, and wireless performance. • Perform WLC/AP configuration changes, firmware/software upgrades, and post-change validation. • Troubleshoot integration with RADIUS/AAA, DHCP, DNS, VLANs, and LAN switching. • Handle L2/L3 escalations and support major wireless incidents. • Perform RCA for recurring wireless issues and recommend corrective actions. • Coordinate with LAN, security, infrastructure, OEM/vendor, and field/site teams. • Maintain configurations, SOPs, technical documentation, and knowledge articles. • Support 24x7/on-call operations for critical incidents as required.

Skill Requirements

Strong hands-on knowledge of enterprise Wireless LAN, WLC, and Access Point management. • Good understanding of 802.11 standards, RF fundamentals, channels, interference, and roaming. • Hands-on experience managing Cisco Wireless or equivalent enterprise wireless platforms. • Knowledge of WLAN/SSID, VLAN mapping, DHCP, DNS, TCP/IP, and switching. • Experience troubleshooting wireless authentication, RADIUS/AAA, and 802.1X. • Knowledge of wireless monitoring, performance analysis, and diagnostic tools. • Good understanding of high availability, controller/AP upgrades, and change management. • Strong incident troubleshooting and Root Cause Analysis (RCA) skills. • Good communication, technical documentation, and stakeholder coordination skills. • CCNA/CCNP Enterprise or equivalent wireless networking knowledge preferred.

Other Requirements

NA
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Information at a Glance

Why HCLTech?

At HCLTech, you'll supercharge your potential. You'll find your career. And you'll find your spark. All at a place that knows that helping its customers stay on top starts by putting its people first.

HCLTech is a global technology company, home to more than 230,000 people across 60 countries, delivering industry-leading capabilities centered around digital, engineering, cloud and AI, powered by a broad portfolio of technology services and products. We work with clients across all major verticals, providing industry solutions for Financial Services, Manufacturing, Life Sciences and Healthcare, Technology and Services, Telecom and Media, Retail and CPG, and Public Services. Consolidated revenues as of 12 months ending September 2026 totaled $14.8 billion.