Aristidis worked on the facebook/fbthrift repository, focusing on stabilizing URI handling within Thrift by reverting recently introduced validation checks for missing URIs. Using C++ and leveraging expertise in compiler design and Thrift, Aristidis removed logic that enforced URI presence for Thrift types, thereby preserving backward compatibility and preventing potential disruptions for existing clients and servers. The technical approach involved a targeted regression rollback, thorough code review, and validation of system stability after the changes. This work prioritized integration stability and production safety, ensuring that the established, reliable URI validation behavior remained intact while minimizing risk during the transition period.