During January 2026, Dmytro Demchuk contributed to the percona/percona-server-mongodb-operator repository by developing a new Certificate interface and refining the WaitForCert logic to improve certificate management and startup reliability for MongoDB clusters. His work focused on ensuring that cert-manager ownership references were properly verified, addressing startup failures when certificate ownership was enabled. Using Go and leveraging Kubernetes and DevOps practices, Dmytro implemented comprehensive end-to-end tests to validate the certificate management flow and enhance deployment robustness. This feature addressed the K8SPSMDB-1387 issue, resulting in more stable cluster startups and improved reliability in cert-manager-enabled environments without introducing new bug fixes.