Worked on stabilizing the CRI fake runtime sandbox lifecycle within the kubernetes/kubernetes repository, focusing on backend development using Go and Kubernetes CRI integration. Addressed a critical bug by ensuring the RemovePodSandbox path invoked the correct removal method, which aligned the sandbox lifecycle with expected Kubernetes behavior and prevented lingering sandboxes. This targeted fix improved reliability and reduced resource leaks in both CI and production environments. Demonstrated strong debugging and patch-level code maintenance skills by identifying lifecycle inconsistencies and implementing precise changes. The work contributed to more stable pod sandbox removal processes, enhancing overall system stability and resource management in Kubernetes deployments.