Lead Consultant
India
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Job Description
Lead Consultant
Chennai, Tamil Nadu

Job Summary

We are seeking a highly skilled and experienced L3 Network Engineer to support, design, implement, and optimize enterprise network infrastructure across LAN, WAN, Cisco Wireless, and SD-WAN environments. The ideal candidate will serve as the highest level of technical escalation for network-related incidents and lead complex network transformation initiatives. A strong technical background combined with excellent communication, stakeholder management, and customer-facing skills is mandatory. The candidate should be capable of leading technical discussions, presenting solutions, managing critical incidents, and collaborating effectively with global teams and senior leadership.

This role drives strategic consulting engagements within the infrastructure management domain, providing technical leadership and architectural direction to deliver innovative solutions aligned with client business objectives. The position is responsible for shaping infrastructure transformation initiatives, ensuring best practices, and fostering technical excellence across complex environments.

Key Responsibilities

Network Operations & Support Provide L3 support for enterprise LAN, WAN, Wireless, and SD-WAN environments. Act as the final technical escalation point for complex network incidents. Troubleshoot and resolve high-priority network outages within SLA timelines. Perform detailed Root Cause Analysis (RCA) and recommend permanent fixes. Ensure network availability, stability, performance, and security across global environments. Support 24x7 operations and participate in on-call rotations when required. Change Management & Network Implementations Plan, review, implement, and validate complex network changes. Lead network migration, upgrade, refresh, and transformation activities. Conduct impact assessments and risk analysis for planned changes. Ensure successful execution of changes with minimal business impact. Prepare implementation plans, rollback procedures, and change documentation. Critical Incident & Bridge Management Lead and drive critical network incident bridge calls (P1/P2 incidents). Coordinate with internal teams, vendors, service providers, and customers during major outages. Provide regular technical updates to leadership and stakeholders. Drive restoration activities and ensure timely service recovery. Own post-incident reviews and corrective action plans. Technical Leadership Provide technical guidance and mentoring to L1/L2 engineers. Review technical solutions and network designs. Drive operational excellence and continuous service improvement initiatives. Ensure adherence to network standards, policies, and best practices.

 

1. Provide architectural leadership in infrastructure management by designing and implementing scalable solutions using cloud platforms (AWS, Azure, GCP) and automation tools (Terraform, Ansible). 
2. Define and govern infrastructure strategies by leveraging virtualization technologies (VMware, Hyper-V) to optimize resource utilization and operational efficiency.
3. Lead technical assessments and solutioning for infrastructure modernization, utilizing monitoring and management platforms (Nagios, SolarWinds) to ensure reliability and performance.
4. Drive cross-domain technical alignment by integrating security frameworks and compliance standards (ISO 27001, SOC 2) into infrastructure consulting deliverables.
5. Mentor consulting teams in adopting enterprise-scale design patterns and best practices for hybrid and multi-cloud environments.
6. Collaborate with stakeholders to translate business requirements into technical roadmaps, utilizing advanced infrastructure analytics and automation.

Skill Requirements

Mandatory Technical Skills Data LAN Cisco Catalyst and Nexus Switches Layer 2 & Layer 3 Switching VLANs, Trunking STP, RSTP, MSTP EtherChannel / LACP HSRP, VRRP, GLBP QoS Network Segmentation Campus Network Architecture WAN Technologies MPLS Internet WAN Metro Ethernet IPSEC VPN Site-to-Site VPN GRE Tunnels DMVPN WAN Performance Optimization Carrier Circuit Troubleshooting Routing Protocols BGP OSPF EIGRP Static Routing Route Redistribution Policy-Based Routing (PBR) Multicast Fundamentals Cisco Wireless Cisco Wireless LAN Controllers (9800 Series Preferred) Cisco Access Points Wireless Design and Deployment RF Optimization and Troubleshooting Wireless Roaming WLAN Security 802.1X Authentication Cisco ISE Integration Guest Wireless Solutions Performance Analysis and Troubleshooting Cisco SD-WAN (Mandatory) Strong hands-on experience with: Cisco Viptela SD-WAN Architecture vManage vSmart vBond cEdge / vEdge Devices Overlay and Underlay Architecture Application Aware Routing SLA-Based Policies Traffic Engineering Segmentation Direct Internet Access (DIA) Cloud Connectivity Zero Touch Provisioning (ZTP) SD-WAN Deployment, Migration, and Troubleshooting Network Security Knowledge ACL Management Cisco ISE Network Segmentation IPSEC VPN Secure Network Design Basic Firewall Troubleshooting Network Hardening Best Practices

Other Requirements

Monitoring & Management Tools Experience with one or more: Cisco Catalyst Center / DNA Center SolarWinds ThousandEyes PRTG Wireshark Cisco Prime Infrastructure ServiceNow
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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 226,300 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 December 2025 totaled $14.5 billion.
23 Benefits At HCLTech, we believe in empowering our employees with comprehensive benefits that support their professional growth and enhance their well-being. When you sign up for a career with us, you gain access to: https://rmkcdn.successfactors.com/147eb21f/a701dca9-f32d-4fc9-9447-6.svg Industry-benchmarked compensation https://rmkcdn.successfactors.com/147eb21f/b0c54381-ddcc-4a33-9b35-9.svg Best-in-class healthcare benefits https://rmkcdn.successfactors.com/147eb21f/b73027be-7aae-4d36-a090-4.svg Personal time off https://rmkcdn.successfactors.com/147eb21f/d5b4fdfd-2e99-4e26-9878-9.svg Maternity and paternity benefits https://rmkcdn.successfactors.com/147eb21f/3d42b0fc-4652-435a-9ece-c.svg Access to skills / higher education programs/resources https://rmkcdn.successfactors.com/147eb21f/aeddeaf2-9e25-4584-ad11-d.svg Discounts on products and services via Benefit Box https://rmkcdn.successfactors.com/147eb21f/a9609a3b-2700-4b3c-9d90-a.svg Participate in CSR programs and live life with a purpose https://rmkcdn.successfactors.com/147eb21f/c6e33851-710f-4634-bd69-f.svg Opportunities to grow and advance your career Note: The benefits listed above vary depending on the nature of your employment and the country where you work. Some benefits may be available in some countries but not in all.