Worked on the apache/celeborn repository to deliver configurable SSL handshake timeout support for RPC components, specifically targeting the rpc_app and rpc_service transport modules. Focused on backend development and configuration management, the solution introduced production-aligned defaults to reduce connection timeouts during internal shuffle traffic, thereby lowering the risk of Spark task failures caused by SSL timeouts. Leveraging Java and Scala, the implementation emphasized a configuration-driven approach, enhancing the tunability and reliability of shuffle operations in production environments. The work demonstrated expertise in network programming and SSL/TLS, with an emphasis on code traceability and production-readiness rather than bug fixing.