Project: one of the most popular distributions of Hadoop project● Designed and implemented key features in Java, maintained and optimized Hadoop Bash scripts, contributing to the development of a highly scalable and reliable Hadoop distribution● Owned development of Hadoop project. Collaborated closely with cross-functional teams. Integrated 70% of modifications and improvements into the major version release● Developed 60% of an automated testing platform using Java and Bash for a distributed Hadoop cluster operating on Linux● Reduced test implementation time and enhanced overall tests maintainability by optimizing testing framework resulting in a reduction of QA team human resources by 67%● Automated artifacts verification by implementing application using Java, Spring Framework and GWT ● Collaborated with technical writers to identify and fill over 30 gaps in product documentation

Project: CPM, real-time network device management/monitoring tool for DOCSIS/GPON networks● Designed and implemented 3 custom data solutions using Java, SQL, and Linux-based tools for processing, transforming, and reporting data, effectively addressing critical feature gaps in the product● Spearheaded integration of a comprehensive monitoring system covering 6 critical areas: Java JMX metrics, Linux system metrics, events and logs, MySQL slow queries, GC logs, and API request latency ● Interacted closely with development team to propose and initiate a new feature development that secured one of the largest customers, driving a 15% increase in total license sales● Reduced issue detection time by 80% and improved system stability through an active monitoring approach, leading to a 25% increase in troubleshooting speed ● Decreased daily reports generation time from ~18,000 seconds to ~400 seconds after conducting an in-depth investigation into SQL query slowness● Maintained product and process documentation to ensure accurate, accessible information for effective knowledge sharing