Lead Engineer - Network Engineering

CBTS; Chennai District; On-site; INR 900,000 - 1,300,000; Full time

Job summary

CBTS is seeking an experienced network engineer to lead design, deployment and optimization across routing, switching, WAN, LAN, wireless, SD-WAN and security domains.

The role emphasizes advanced troubleshooting, upgrades, capacity planning and governance, with a focus on high availability and secure connectivity across customer and internal environments.

Responsibilities

• Lead design, configuration, deployment and optimization of network infrastructure and routing policies.
• Perform advanced troubleshooting, problem management, RCA, performance optimization and escalations.
• 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.
• Monitor network availability and performance KPIs such as SLA adherence, change success rate and throughput improvements.

Job description

• Role Purpose (1–3 lines): 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
• Network change success rate
• Network optimization gain metrics (latency, throughput, packet loss reduction)
• Control / policy compliance and standardization adoption