Worked on the apache/parquet-java repository to address a critical issue with reading protobuf Uint32Value types, focusing on correct overflow handling during data serialization. The solution involved updating core components such as ProtoMessageConverter, ProtoSchemaConverter, and ProtoWriteSupport to ensure end-to-end support for Uint32Value, thereby improving the reliability of ingesting protobuf data into Parquet. Enhanced unit testing was introduced to validate overflow scenarios and prevent regressions, while code quality improvements were applied to stabilize the test suite. The work leveraged Java, Protobuf, and data serialization expertise, resulting in more robust handling of integer values within production data pipelines.