Worked on build optimization and cross-platform development for the libsdl-org/aom and uxlfoundation/oneTBB repositories, focusing on improving developer productivity and build efficiency. For aom, enabled parallel compilation under MSVC by configuring the /MP flag in cmake, which reduced build times and accelerated iteration speed. In oneTBB, refactored C++ headers to avoid including windows.h, reducing compile-time overhead and enhancing portability across platforms. Leveraged C++, cmake, and MSVC to deliver targeted improvements that streamlined build processes, improved CI throughput, and minimized platform-specific dependencies, resulting in more maintainable codebases and faster, more reliable builds for multi-platform development environments.