Kaiwen Zhang is a Ph.D candidate in Computer Science at the University of Toronto as a member of the Middleware Systems Research Group since 2010. Born in Beijing (China), he obtained his B.Sc and M.Sc at McGill University in Montréal. His research interests include expressiveness and QoS in content-based pub/sub systems, massively multiplayer online games, consistency in replicated systems, and software-defined networking.