Worked on the fzyzcjy/Mooncake repository to enhance the stability of RDMA transport endpoints, focusing on reliability for high-throughput distributed systems. Addressed a critical issue in endpoint deletion logic by ensuring endpoint status remained consistent during removal, preventing premature deconstruction before completion queue generation. Expanded automated test coverage to validate concurrent sender and receiver operations across multiple network cards, supporting robust system integration and safer dynamic RDMA usage. Leveraged C++ and Python to implement these improvements, emphasizing maintainability and risk reduction for runtime disruptions. The work demonstrated a methodical approach to network programming and testing in complex, concurrent environments.