In February 2025, MJ worked on the debezium/debezium repository, focusing on optimizing buffer handling within the JdbcChangeEventSink component. MJ refactored the execute method by introducing a getRecordsToFlush helper, which consolidated buffer resolution and record flushing logic to improve timing and flow. This change addressed correctness issues in the delete path, ensuring proper buffer usage for both upsert and delete operations. The work leveraged Java for backend development and database integration, resulting in reduced latency and increased reliability in the change-event pipeline. MJ’s contributions enhanced event processing throughput and data correctness, demonstrating depth in refactoring and performance tuning.