Worked on the open-feature/go-sdk-contrib repository to improve the reliability and concurrency correctness of the Go SDK. Focused on resolving a critical data race in the InProcess service by introducing mutex-based synchronization to protect shared state during event handling and synchronization. This approach eliminated race conditions under concurrent workloads, resulting in more deterministic behavior and reduced risk of data corruption in production environments. Collaborated closely with other contributors through code review and joint development. Utilized Go, concurrent programming techniques, and gRPC, with an emphasis on robust testing to ensure thread safety and enhance the overall stability of the SDK.