Worked on the kubernetes/kubernetes repository to deliver a performance-focused refactor in the IPVS networking path, specifically optimizing local address retrieval. By replacing multiple per-interface netlink dumps with a single netlink request, the solution reduced address lookup latency from 34.8 seconds to 60 milliseconds on nodes with large numbers of interfaces and addresses. This approach consolidated address data retrieval and filtered results in user space, maintaining correctness while improving efficiency. The work leveraged Go, Linux netlink, and performance profiling to enhance kube-proxy scalability and reliability under high load, demonstrating a strong focus on network programming and measurable performance optimization.