He has been active in the IETF since 2000 and currently co-chairs the HTTP and QUIC Working Groups. He is also active in the W3C, most recently being a member of the Technical Architecture Group (TAG). Previously, he worked at Yahoo!, where he helped deploy HTTP-based “Web services”, and BEA Systems, where he was puzzled by SOAP-based “Web Services.” Mark’s interests include HTTP(S), Web performance, caching, intermediation, metadata and privacy.