He teaches legislation and regulation, administrative law, information law, and law related to communications technologies. He is also the Director of the McGannon Center for Communications Research. Olivier is also part of a team of research engineers and social entrepreneurs to whom the National Science Foundation in fall 2017 awarded a three-year one-million-dollar grant to prototype a secure, affordable, and energy-efficient computing network that is to be owned and operated as a “commons resource” for Harlem residents. Sylvain was a Karpatkin Fellow in the National Legal Office of the American Civil Liberties Union in New York City and a litigation associate at Jenner & Block, LLC, in Washington, D.C. He is on the board of directors for the New York affiliate of the American Civil Liberties Union.