Leonardo Pilastri enhanced static analysis capabilities across SonarSource repositories by delivering targeted improvements in both sonar-xml and sonar-java. He implemented Multi-Quality Rule mode in sonar-xml, updating XML parsing logic to support more flexible rule application and performing build management tasks to streamline future development. In sonar-java, Leonardo centralized Spring annotation references by introducing a SpringUtils class, consolidating fully qualified names to reduce redundancy and improve maintainability. His work leveraged Java, XML, and the Spring Framework, focusing on code refactoring and build hygiene. These contributions addressed technical debt and promoted consistency, reflecting a thoughtful, maintainable engineering approach.