Worked on the sapcc/helm-charts repository to enhance deployment stability and security for Kubernetes environments. Delivered a feature that disables zonal ingresses for Persephone seeds, reducing the ingress surface area and improving the security posture of deployments. Addressed configuration reliability by fixing the placement of seed taints in the Gardenlet configuration, ensuring valid YAML structure and stable seed provisioning. Maintained clear traceability through focused commits, supporting audit and rollback needs. Utilized skills in Kubernetes, Helm, and YAML configuration management to implement these changes, demonstrating a methodical approach to cloud infrastructure challenges and a focus on maintainable, reliable deployment workflows.