Worked on enhancing data serialization and client reliability across two Rust repositories. In the reown-com/blockchain-api project, focused on improving WCN client integration by updating submodules, migrating IRN node address handling from Multiaddr to PeerAddr, and introducing serde_json for more robust serialization. These changes reduced manual intervention and improved deployment stability for WCN-enabled networks. In apache/arrow-rs, extended the ParquetRecordWriter derive macro to support Arc<str> serialization, ensuring efficient handling of string types in Parquet records while maintaining compatibility and macro ergonomics. Demonstrated expertise in Rust, dependency management, and macro development, delivering targeted features with production-ready reliability.