Worked on apache/paimon and apache/flink-cdc, focusing on reliability and configurability in data pipelines. In apache/paimon, addressed data ingestion robustness by refining sequence field parsing logic in Java, trimming whitespace to prevent processing failures and aligning behavior with primary-key parsing. This reduced edge-case errors and improved maintainability of the pipeline. Later, contributed to apache/flink-cdc by implementing an optional server-time-zone parameter for the MySQL Pipeline Connector, enhancing time zone handling and configurability. Also clarified related documentation in Markdown to reduce misconfigurations and onboarding friction. Demonstrated attention to detail through targeted bug fixes, feature delivery, and clear technical writing.