Seth Malaki developed RBAC and manifest support for the xlistenersets.gateway.networking.x-k8s.io resource in the Tigera operator within the projectcalico/calico repository. He updated Helm charts and YAML manifests to extend operator permissions, ensuring the new resource type could be properly managed and recognized by the operator. By aligning RBAC roles with the latest CRD definitions, Seth enabled safe reconciliation of xlistenersets resources across Kubernetes clusters. His work focused on operator development and RBAC configuration, demonstrating a solid understanding of Kubernetes resource management. The contribution addressed evolving requirements for resource permissions, providing targeted, well-scoped improvements without introducing unnecessary complexity.