• Lead reliability and performance engineering for critical Visa platforms including Digital Commerce, Purchase Alerts, Visa Mobile SDKs (Apple Pay, Google Pay, Samsung Pay), and Decision Fraud Management.

• Resolved production performance issues (container security misconfigurations, DB bottlenecks, JVM freezes), improving stability and reducing latency by 50%.

• Drove adoption of Gatling for shift-left performance testing; automated CI/CD execution via Jenkins and reduced manual testing effort using GenAI tools.

• Built observability dashboards (Grafana, Splunk, OpenTelemetry) and led JVM tuning, AWR analysis, and APM-based troubleshooting.

• Supported capacity planning, production engineering, and on-call operations to maintain SLA/SLO compliance.

• Led batch performance testing for Visa Compliance applications, resolving DB bottlenecks, slow queries, and job failures to improve scalability.

• Performed deep performance profiling (thread/heap dumps, GC logs, system metrics) to identify bottlenecks and optimize application stability.

• Contributed to capacity planning and production engineering to ensure peak-season reliability.

• Supported on-call performance operations, analyzing production incidents and driving RCA to strengthen system resilience.

• Partnered with Release Engineering and developers during OpenShift → Docker migration, resolving service-mesh and traffic-shaping issues to maintain performance stability.

▪ Defined and validated NFRs, creating end-to-end performance test strategies aligned with business and scalability goals.

▪ Designed and executed performance tests (load, stress, endurance) across critical application workflows.

▪ Analyzed test results to identify bottlenecks, capacity limits, and latency issues, driving performance optimizations.

▪ Collaborated with senior team members, architects, developers, and product teams to understand application design and build effective test strategies.

▪ Monitored production performance, identifying regressions and supporting incident analysis and remediation.