Worked on the docker/envoy repository to enhance rate limiting by introducing inline rate limit descriptors within the Envoy HTTP rate limit filter. This feature allowed rate limit descriptors to be defined directly in the filter configuration, enabling per-filter overrides of route-level settings for greater granularity and reduced configuration drift. The implementation leveraged C++, Protobuf, and YAML, focusing on improving traffic shaping flexibility and operability across services. By enabling faster rollout of rate limiting policies and expanding test coverage for filter-level configurations, the work contributed to more precise and maintainable rate limiting strategies within complex service architectures.