Apr 2021 – Nov 2023 · 2 yrs 7 mos · Bangalore Urban, Karnataka, India

• Conducted performance tuning and benchmarking of Golang-based microservices. Executed ISO 8583 financial message workloads using an in-house tool, profiled code with pprof, developed Go benchmarks for method performance assessment, and executed capacity planning.
• Carried out the chaos testing initiative for Kubernetes-deployed microservices and infrastructure components. Took a leading role in the automation effort of chaos testing involving piloting open-source tools, automating test execution, and report generation using Jenkins CI/CD pipelines and Python scripts.
• Successfully conducted benchmarking exercises on Cassandra databases, evaluating performance metrics and identifying optimization opportunities.
• Analyzed and optimized Kafka performance through benchmarking and tuning strategies, enhancing message throughput and system responsiveness.
• Executed I/O benchmarking assessments on NAS drives using fio, gathering performance data and insights to enhance storage system efficiency.

Sep 2018 – Apr 2021 · 2 yrs 7 mos · Bengaluru Area, India

• Evaluated and planned the performance of Java applications through comprehensive benchmarking. Employed tools such as JProfiler, JVisualVM, and Eclipse MAT to analyze and optimize application performance.
• Improved the performance of Oracle databases by implementing tuning strategies to enhance query execution and database responsiveness.
• Used Google Chrome Lighthouse to optimize client-side performance, ensuring seamless user experiences and efficient web application interactions.
• Developed and executed performance tests using LoadRunner and JMeter, thoroughly assessing application performance under various conditions to identify and address performance bottlenecks.

Feb 2015 – Sep 2018 · 3 yrs 7 mos · Kolkata Area, India

• Successfully led an offshore team of 4 members, coordinating tasks and ensuring effective collaboration on performance testing and engineering projects.
• Effectively monitored Oracle databases using tools like AWR and tracked PostgreSQL database performance through the 'pg_stat_statement' extension, enabling data-driven optimizations.
• Directed end-to-end performance testing and engineering endeavors, including NFR gathering, workload profiling, script development, test execution, real-time monitoring and in-depth reporting.
• Expertly employed a range of performance testing tools, including LoadRunner, JMeter, and Netstorm for testing various protocols and accurately assessing system behavior.
• Leveraged tools like Dynatrace and AppDynamics to analyze performance of Java applications, identifying bottlenecks and optimizing code for enhanced efficiency.
• Successfully installed and maintained the open-source monitoring tool Zabbix, ensuring continuous monitoring of system performance and proactive issue detection using alerts.

Aug 2010 – Jan 2015 · 4 yrs 5 mos · Bangalore

• Worked as a dedicated individual contributor, taking charge of scripting using LoadRunner and JMeter and subsequently executing comprehensive performance tests.
• Proficiently utilized AppDynamics and Dynatrace for performance monitoring, providing valuable insights into application behavior and performance characteristics.
• Used JProfiler to methodically profile a Java application, uncovering performance bottlenecks and optimizing code for enhanced efficiency.
• Analyzed Oracle database performance through examination of AWR reports, identifying areas for optimization and improved system responsiveness.