During March 2025, Ramesh Chintagunta focused on backend reliability improvements for the apache/pinot repository. He addressed a recurring production issue by updating the PinotConnection API in Java to filter broker list queries, ensuring only ONLINE brokers were returned from the controller. This API integration change appended a state parameter to broker list requests, effectively excluding dead or unresponsive servers from query routing. By resolving a root cause of intermittent query failures, Ramesh improved cluster stability and uptime. His work demonstrated a methodical approach to backend problem-solving, leveraging his skills in Java and API integration to enhance Pinot’s operational reliability.