During November 2024, Shiva focused on backend reliability improvements in the m1a2st/kafka repository, addressing a critical issue in Kafka’s ShareConsumeRequestManager. He implemented a targeted Java fix to ensure all records are properly acknowledged during subscription changes, closing a gap in the acknowledgement semantics that previously risked message loss and unnecessary reprocessing. By refining the ack logic, Shiva enhanced the end-to-end robustness of Kafka message processing, reducing operational risk for consumers. His work demonstrated a deep understanding of distributed systems and backend development, applying Java and Kafka expertise to deliver a more stable and reliable message delivery flow under dynamic conditions.