Worked on the apache/kafka repository to enhance the stability and reliability of telemetry routing within distributed systems. Focused on backend development using Java, the work addressed a bug in the TelemetrySender component by ensuring that broker IP addresses remain current through dynamic metadata refreshes. This approach involved updating or clearing the sticky node when broker addresses changed or nodes became unavailable, thereby reducing the risk of misrouted telemetry data. Comprehensive tests were added to verify correct behavior under changing network conditions, and documentation was improved to clarify the changes. The work emphasized robust network programming and maintainable code quality.