During June 2025, Matías Buchwald engineered high-availability locking and improved DSL correctness across the mulesoft/mule and mulesoft/mule-extensions-api repositories. He delivered a zero-downtime LockProvider migration by introducing dual implementations and a CombinedService, enabling rolling upgrades without service interruption. Matías abstracted lock creation with a new LockProvider interface and enhanced LockFactory, supporting pluggable locking strategies in Java. He also resolved DSL map-type handling and XML element pluralization to ensure schema alignment, and strengthened OAuth authentication flows with robust logging and null-token safety. His work demonstrated depth in API development, system migration, and error handling, reducing operational risk and improving maintainability.