Matthew Shin modernized the build system for the JCSDA-internal/ufo-data repository by integrating ecbuild with CMake, updating project configuration to support robust package discovery and downstream consumption. He restructured the CMakeLists.txt to align with internal build standards, improving installability and enabling find_package-based integration for reproducible builds. In a subsequent project phase, Matthew refactored and modularized observation file validation logic, relocating it from ufo-data into the ufo project to centralize validation and reduce code duplication. His work focused on build system configuration, modular programming, and software development, resulting in improved maintainability and streamlined workflows across related repositories.