Worked on the rabbitmq-server repository to enhance the reliability of quorum queue deletion in distributed message queue environments. Focused on backend development using Erlang, the developer implemented a feature that clears quorum queue bindings before deletion, preventing message rejection and reducing the risk of stale bindings across clusters. The approach included both pre-delete and after-delete cleanup mechanisms, ensuring that any new bindings created during the deletion process are also removed. This work improved the consistency and operational safety of message delivery guarantees during queue deletion, demonstrating strong skills in Erlang and message queue management within complex backend systems.