Worked on improving build stability and runtime safety across the xapi-project/xen-api and aws-amplify/amplify-cli repositories. Addressed Maven-based Java build tooling by refining the pom.xml file, which enhanced dependency management and plugin configuration for more reliable builds. In the Amplify CLI, resolved an issue in localinvoke.ts by updating the Node.js execa invocation to pass arguments as an array, preventing unintended arguments and ensuring correct Lambda executable behavior. Utilized TypeScript, Maven, and XML to deliver these changes, resulting in cleaner build processes, safer local invocation patterns, and a smoother developer experience across both Java and TypeScript codebases within one month.