Worked on enhancing Apache Flink’s ForSt-backed StateBackend within the githubnext/discovery-agent__apache__flink repository, focusing on fast checkpointing and snapshot optimization using Java. Introduced efficient file system operations and new data transfer strategies to accelerate checkpoint creation and restore processes, leveraging distributed systems and performance optimization skills. Addressed correctness in incremental snapshot handling by refining the logic for initial full checkpoints and implementing a forceCopy flag to control data transfer during state management. These changes improved reliability and reduced latency for streaming workloads, ensuring stable state recovery and minimizing the risk of partial state transfers in production environments.