Stefan Sedich developed targeted backend features across two repositories, focusing on practical enhancements and deployment flexibility. For envoyproxy/envoy, he expanded the rate limiting system by introducing weekly time unit support, modifying the RateLimitResponse proto and implementing conversion logic in C++ to ensure compatibility with existing time units. Comprehensive tests validated the new functionality, enabling more expressive rate-limiting policies. In the newrelic/k8s-agents-operator repository, Stefan added a configurable option in Helm charts to disable CRD installation, improving deployment workflows for Kubernetes clusters with pre-existing CRDs. His work demonstrated depth in Helm, Kubernetes, and protobuf, emphasizing reliability and maintainability.