Worked on the vmware-tanzu/velero repository to enhance backend reliability by addressing ConfigMap management during the DataUpload lifecycle. Using Go, implemented a guard that ensures ConfigMaps are only created when a valid owner label is present on DataUpload resources, preventing unnecessary resource churn in etcd and reducing cluster noise. Added operator log warnings for missing or mismatched owner labels to improve troubleshooting and observability. Updated automated tests to verify that ConfigMaps are not created in invalid scenarios and that appropriate warnings are logged. The work focused on maintainability, aligning with reviewer feedback, and strengthening the robustness of backend operations.