Worked on build-time and binary-size optimization in the libsdl-org/DirectXShaderCompiler repository by refactoring the llvm::StringRef constructor and related static constants to use constexpr, thereby reducing non-trivial initializers and improving build efficiency. In the Esri/abseil-cpp repository, addressed reliability and performance in Windows stack trace capture for UWP by removing a global static function pointer and dynamic loading, instead using CaptureStackBackTrace directly to streamline initialization and enhance crash reporting. These contributions involved C++, build systems, and Windows API expertise, focusing on system programming and debugging to deliver measurable improvements in performance, reliability, and maintainability across both projects.