Shiyan focused on enhancing the reliability of the KIngress controller within the alibaba/higress repository, addressing critical issues in backend routing stability. By refining the logic for LoadBalancerIngress status updates, Shiyan ensured that routing behavior remained consistent during status changes, preventing unintended disruptions. The work also included improving deduplication mechanisms to account for header-based route differentiation, which eliminated the silent dropping of routes that relied on specific header matches. Utilizing Go and Kubernetes, Shiyan’s contributions demonstrated a strong grasp of backend development principles, delivering targeted bug fixes that improved the robustness and predictability of ingress routing in production environments.