Zeng Jieliang contributed targeted engineering improvements across two open source repositories, focusing on build system reliability and cross-platform support. For kvcache-ai/ktransformers, Zeng addressed Windows build instability by implementing a CMake architecture guard and resolving environment-variable issues, which reduced configuration errors and improved CI consistency. In conan-io/conan-center-index, Zeng added Android build support for the Bitserializer library, updating build configurations and removing redundant Clang validation to streamline Android usability. These contributions demonstrated proficiency in C++, Python, and build system configuration, reflecting a thoughtful approach to cross-platform challenges and careful change management within complex package management and CI environments.