Worked on enhancing data querying reliability within the cosmos/cosmos-sdk repository, focusing on backend development and API correctness using Go. Addressed a bug in the collection pagination logic by ensuring that pagination offsets are applied before filtering predicates, which prevents incorrect skip and limit results when predicates are present. This adjustment improved the accuracy of paginated API responses and reduced user-facing errors in data retrieval. The solution required a careful review of the data access layer to maintain consistency and reliability. Demonstrated strong skills in Go and API development, with attention to detail in backend logic and data handling for robust system behavior.