Worked on the rabbitmq-server repository to enhance AWS-based clustering reliability by developing a deterministic AWS peer discovery feature. This solution addressed inconsistencies in cluster formation caused by arbitrary API response ordering, improving operational predictability and scalability. The approach involved sorting network interfaces by device index and private IPs by their primary flag, ensuring consistent hostname resolution during peer discovery. Leveraging expertise in Erlang, distributed systems, and cloud computing, the work eliminated non-deterministic behavior in AWS environments. The feature was delivered as a single, focused change, reflecting a deep understanding of backend development and networking challenges in cloud-native distributed systems.