Worked on the mathworks/arrow repository to enhance Swift support for Apache Arrow, focusing on robust data interchange and schema expressiveness. Delivered support for nested StructArray data types in Swift, enabling both reading and writing of complex structured data with comprehensive unit tests for parsing and nested fields. Improved the IPC stream handling API by fixing stream format issues and refactoring interfaces to clearly distinguish between file and stream semantics. Utilized Swift and Go, applying skills in API design, data serialization, and low-level programming. The work expanded test coverage and improved API clarity, contributing to safer, more maintainable cross-language data workflows.