Worked on the envoyproxy/envoy repository to deliver early data access for the TCP proxy filter, enabling downstream filters to read and buffer data before the upstream connection is established. This feature was implemented by introducing a filter state object that exposes early data, requiring changes to filter initialization and data-path handling. The approach allows for more dynamic policy enforcement and improved observability during connection setup, aligning with streaming data paths and extensible filter interactions. The work involved C++ and YAML, leveraging skills in Envoy Proxy, filter development, and network programming to enhance responsiveness and flexibility in the filter chain architecture.