Sr Subject Matter Expert (Support&Ops)

Job description

Sr Subject Matter Expert (Support&Ops) India Sr Subject Matter Expert (Support&Ops) Chennai, Tamil Nadu Job Summary As a Tier 3 Network Data Engineer, you will serve as a senior escalation point for complex data network issues, lead root cause analysis, and drive optimization initiatives across large-scale enterprise and telecom infrastructures. You will collaborate with Tier 1/2 teams, engineering, and customer stakeholders to ensure high availability and performance of data services. Key Responsibilities • Lead advanced troubleshooting and resolution of escalated incidents across Ethernet, MPLS, SD-WAN, IP routing, and switching domains. • Perform logical provisioning, configuration, and validation of transmission circuits and services. • Drive root cause analysis and implement permanent fixes for recurring issues. • Collaborate with Tier 1/2 teams and engineering to support network upgrades, migrations, and integration of new technologies. • Maintain and optimize network performance, ensuring minimal downtime and SLA adherence. • Document network topologies, configurations, and operational procedures. • Participate in SA OPS reviews and provide performance insights and improvement plans. • Mentor junior engineers and contribute to knowledge base development. • Lead complex technical calls and drive them to resolution.