Worked on the envoyproxy/gateway repository to enhance HTTPS compatibility in gateway proxying scenarios. Focused on backend development using Go, the work involved implementing scheme header transformation to ensure correct handling of the :scheme header when forwarding requests to HTTPS upstream services. Introduced a ClientTrafficPolicy option, allowing precise control over header values and reducing protocol errors in mixed HTTP/HTTPS deployments. The public API was refactored, renaming UpstreamScheme to ClientScheme for improved clarity and backward compatibility. This feature addressed reliability issues in protocol translation, demonstrating skills in API design, Kubernetes integration, and careful consideration of evolving backend requirements.