SR. LEAD ENGINEER – NETWORK ENGINEERING

CBTS; Chennai District; On-site; INR 1,200,000 - 1,800,000; Full time

Job summary

CBTS is seeking a proficient network engineering professional to lead end-to-end enterprise network design, deployment, and optimization across routing, switching, WAN/LAN, wireless, SD-WAN and network security domains. The role emphasizes high availability, performance optimization, and secure connectivity across customer and internal environments.

Responsibilities include design, configuration, deployment, troubleshooting, upgrades, capacity planning and resilience improvements, as well as

Responsibilities

• Lead design, configuration, deployment and optimization of network infrastructure, routing policies and segmentation.
• Perform advanced troubleshooting, problem management, RCA, performance optimization and escalations handling.
• Support network upgrades, migrations, patching, software upgrades, capacity management and resilience improvements.
• Implement network security controls, ACLs, firewall policies, zero trust segmentation and access governance.
• Ensure end-to-end network observability, monitoring integration and proactive detection of performance degradation.
• Create and maintain network architecture documentation, operational runbooks and engineering standards.
• Provide technical SME support for new solutions / presales sizing and infra transformation initiatives.

Job description

Role Purpose: Leads enterprise network engineering & advanced operational support across routing, switching, WAN, LAN, wireless, SD-WAN and network security components to ensure high availability, optimized performance and secure network connectivity across customer and internal environments.

Key Responsibilities

• Lead design, configuration, deployment and optimization of network infrastructure, routing policies and segmentation.
• Perform advanced troubleshooting, problem management, RCA, performance optimization and escalations handling.
• Support network upgrades, migrations, patching, software upgrades, capacity management and resilience improvements.
• Implement network security controls, ACLs, firewall policies, zero trust segmentation and access governance.
• Ensure end-to-end network observability, monitoring integration and proactive detection of performance degradation.
• Create and maintain network architecture documentation, operational runbooks and engineering standards.
• Provide technical SME support for new solutions / presales sizing and infra transformation initiatives.

Key Performance Indicators (KPIs):

• Network availability and performance SLA adherence
• MTTR & incident resolution effectiveness
• Network change success rate
• Network optimization gain metrics (latency, throughput, packet loss reduction)
• Control / policy compliance and standardization adoption
• Reduction in repeat network incidents