Worked on the elastic/cloud-on-k8s repository to address a reconciliation issue in Kubernetes DaemonSets, focusing on backend development using Go. Delivered a targeted bug fix that implemented a selective merge strategy in the DaemonSet reconciler, ensuring that user-defined metadata and status fields are preserved while updating labels, annotations, and the spec. This approach aligned DaemonSet reconciliation logic with established patterns used for Deployments and StatefulSets, reducing the risk of unintended data loss and improving consistency across controllers. The work enhanced stability for workloads dependent on DaemonSets and contributed to the maintainability of Kubernetes operator codebases.