Sep 2024 – Present · 1 yr 9 mos · Pune, Maharashtra, India · On-site

• Diagnose and resolve network issues across Cisco enterprise routing, switching, SD-WAN, and
• wireless platforms, ensuring high availability and service continuity for global customers.
• Troubleshoot critical system resource including high memory usage, CPU saturation, memory
• fragmentation, platform crashes, network connectivity affecting device stability and performance.
• Manage unexpected device reboots, core dumps, configuration corruption, and rollback scenarios,
• minimizing downtime and data loss.
• Address platform-specific performance degradation and process failures, including memory leaks includes Catalyst switches and 9800 wireless controllers.
• Perform deep-dive debugging using crash info, core dump analysis, trace logs, process memory
• dumps, and detailed CLI debugs for root cause isolation.
• Resolve complex Smart Licensing issues including entitlement verification, license reservation conflicts, activation failures, and compliance auditing across all IOS-XE license tiers.
• Lead software lifecycle management activities including upgrade/downgrade planning, image
• compatibility validation, feature enablement, and rollback strategy development to minimize service
• impact.
• Reproduce and simulate customer network scenarios in lab environments to validate software bugs, verify fixes, and assess configuration impact under controlled conditions.
• Drive high-priority technical escalations, collaborating closely with Cisco Engineering and
• Business Units to accelerate defect resolution, patch releases, and workaround development.
• Prepare detailed Root Cause Analysis reports, technical advisories, mitigation recommendations to support customer transparency and long-term network stability.
• Develop and maintain internal and customer-facing documentation including troubleshooting
• guide, knowledge base articles and best practice documents.
• Maintain upto date expertise including Cisco certifications, TAC knowledge transfers and multi-domain technical training.

Oct 2022 – Nov 2023 · 1 yr 1 mo · Bengaluru, Karnataka, India

• Handled enterprise EMEA/APAC customers in TAC routing.
• Handled high CPU, high memory utilization, crash, throughput issues.
• Good understanding of enterprise platforms like IOS upgrades and licensing.
• Handled static and dynamic routing protocols, including EIGRP and OSPF.
• Hands on experience on CISCO ASR1K, Cat8K and ISR G2 and G3 routers.
• Worked on validating defects and worked with an engineering team for resolutions.
• Reproduced network issues in the LAB environments to test and verify.