Guillaume Caline currently serves as the Directeur Enjeux publics et opinion at Kantar Public, overseeing a team of 10 and focusing on public opinion, image, and communication for public and non-profit sectors. Previously, Guillaume held roles at Kantar as Directeur de clientèle, and from 2010 to 2016 at TNS Sofres, where responsibilities included managing opinion studies for both public and private entities. Additionally, Guillaume has experience as an enseignant at CELSA and as a chargé d'études at the Service d'Information du Gouvernement. Guillaume holds a Master 2 in Sociologie Politique from Sciences Po, complemented by studies at Collegium Civitas.