Sylvain Parasie is a professor of sociology at Sciences Po. An alumnus of the École Normale Supérieure and holder of the agrégation in economics and social sciences, he previously served as a lecturer and then professor at Université Paris-Est/Marne-la-Vallée.

His work explores how digital technologies are reshaping the ways people inform themselves, debate, and engage in the public sphere. He has focused particularly on data journalism and the dynamics of influence between the media, political actors, and platforms. His research also addresses methods in digital inquiry.

He is the author of Computing the News: Data Journalism and the Search for Objectivity (Columbia University Press, 2022) and co-author of Sociologie d’internet (Armand Colin, 2016 and 2019, with J.-S. Beuscart and E. Dagiral). Recently, he co-edited the issue of the journal Réseaux titled "Digital Technologies in the Service of Ecological Transition?" (2024, with S. Shulz).