Worked on enhancing the reliability of Kafka TLS handshakes and AWS IAM authentication flows within the IBM/sarama repository. Addressed a critical issue where TLS write operations could block indefinitely during the handshake by implementing a read deadline, ensuring that communication failures now result in meaningful error reporting rather than silent hangs. Focused on backend development using Go, with an emphasis on network programming to improve connection stability and troubleshooting visibility. The work centered on bug fixing rather than feature development, demonstrating a methodical approach to resolving low-level networking issues and contributing to more robust and maintainable backend infrastructure.