Over a two-month period, contributed to containers/buildah and jenkinsci/jenkins by delivering features and fixes that enhanced build reliability and operational flexibility. In Buildah, extended filesystem tooling by adding options to Mkdir and Remove operations, enabling robust directory creation and error suppression for non-existent items, and introduced configurable exit codes for container commands to align with BuildKit semantics. Developed a Mkfile helper to streamline file creation with custom content and permissions. In Jenkins, addressed a race condition in LazyBuildMixIn to prevent build record loss by improving thread safety. Work demonstrated proficiency in Go, Java, backend development, and containerization technologies.