During this period, contributed to stabilizing core data-pipeline components in the hongyunyan/tigate and pingcap/tiflow repositories, focusing on lifecycle management and observability. Enhanced reliability by refining changefeed gid handling, improving startup and shutdown processes, and expanding unit test coverage with mocks. Addressed runtime panics and fixed bugs related to table loading, checkpointing, and API processing, ensuring cleaner error handling and more robust alerting. Leveraged Go, Shell, and Protocol Buffers to implement features such as improved logging, concurrency control, and system stability. The work emphasized maintainability and code quality, reducing regressions and supporting distributed system operations across critical subsystems.