Worked on backend development for the hyperledger-labs/fabric-token-sdk repository, focusing on optimizing transaction validation performance. Addressed a specific bug by re-enabling the IsValid check, but gated it behind the debug logging level to ensure that full validation occurs only during debugging sessions. This approach preserved transaction integrity for developers while reducing computational overhead in standard operations, aligning with the project’s scalability and performance objectives. The solution was implemented in Go, following disciplined project governance with a clean, signed-off commit and collaborative development practices. Demonstrated attention to both code quality and operational efficiency within a Go-based blockchain environment.