In March 2026, Roman Gorilyi focused on enhancing testing and observability for partitioned-table compaction and optimizer recommendations in the apache/gravitino repository. He developed targeted unit tests in Java to validate the CompactionStrategyHandler’s evaluate method, ensuring correct partition filtering and robust handling of edge cases. Roman also improved backend log messaging for the optimizer recommender, clarifying outputs and increasing log readability, while refactoring CompactionJobContext for maintainability. His work emphasized code quality and operational reliability, leveraging Java, unit testing, and mocking frameworks to reduce regression risk and streamline troubleshooting, reflecting a thoughtful approach to backend development and system robustness.