During August 2025, Dajun Cui focused on backend stability improvements for the Stormservice headless service within the vllm-project/aibrix repository. He addressed issues related to Kubernetes owner references and not-ready endpoint handling, updating the service specification and enhancing equality checks to ensure proper garbage collection and accurate service discovery. By expanding unit tests to cover these changes, Dajun reduced the risk of orphaned resources and misrouted traffic in cloud native environments. His work, primarily using Go and leveraging Kubernetes expertise, contributed to more reliable headless deployments and improved cluster stability, reflecting a thoughtful approach to debugging and system resilience.