Federico Ressi focused on build stability and dependency management across the elastic/elasticsearch and elastic/rally-tracks repositories. He updated the protobuf-gradle-plugin in elastic/elasticsearch, removing reliance on a deleted snapshot and eliminating a JitPack workaround, which improved compatibility with Java 9.1 and reduced long-term maintenance risks. In elastic/rally-tracks, he resolved dependency conflicts to better align with Rally specifications, simplifying project configuration and minimizing the risk of build failures. Federico applied his expertise in Gradle, Java, and build automation to address these issues, demonstrating a methodical approach to improving software architecture and ensuring smoother integration with evolving tooling ecosystems.