Worked on the fmeum/bazel repository to address a build reliability issue affecting developer productivity. Focused on fixing a path resolution error in the zip_builtins script that occurred when Bazel was used as a dependency rather than the root module. The solution involved dynamically detecting the builtins directory using Starlark and build system scripting, specifically leveraging dirname with execpath to ensure correct path resolution in all module configurations. This change improved cross-module compatibility and reduced CI failures, streamlining the build process. The work demonstrated proficiency in Bazel, build systems, and Starlark, with an emphasis on robust, maintainable engineering solutions.