Worked on the hyperledger-labs/fabric-token-sdk repository, focusing on backend development and database management using Go. Addressed a robustness issue in the token management subsystem by implementing logic to ensure token locks are deleted even when absent from the request table, which reduces the risk of stale locks and enhances the reliability of token operations. Updated the associated tests to reflect the new deletion logic, thereby improving regression coverage and overall testing rigor. All changes were committed following established code review and release processes, demonstrating a disciplined approach to production readiness and continuous integration within a collaborative development environment.