Edward worked on the envoyproxy/gateway repository, focusing on backend development with Go and Kubernetes. During March 2025, he addressed reliability and correctness in the Kubernetes provider’s HTTPRoute indexing, specifically when the RequestMirror filter is used. By refining the indexer to include backend references from both primary and mirrored targets, Edward ensured accurate association of mirrored services, improving routing accuracy and stability. His work emphasized internal improvements rather than user-facing features, prioritizing testability and compatibility with existing CRDs and mirroring setups. This targeted bug fix enhanced code quality and laid a foundation for safer, more maintainable future changes.