Thierry holds a PhD in political science from the the School for Advanced Studies in Social Sciences (EHESS, Paris). He got his Accreditation to supervise research (Habilitation à Diriger des Recherches, HDR) from Sciences Po in 2014.
He is Head of Research at the Robert Schuman Foundation, a French Think-Tank on EU affairs based in Paris and Brussels.
Thierry lectured at the Paris 11 University and directed a seminar at the Inter-Armies Defense College. He is currently Visiting Professor at the College of Europe (Bruges) and he also teaches at Sciences Po and at Mines ParisTech.
He has served, between 2007 and 2008, as scientific advisor to the Strategic Analysis Center (Policy Planning Staff of the French Prime Minister) and as advisor at the Policy Planning Staff of the French Ministry of Foreign Affairs.
Thierry is actually associate expert at the Center for International Studies of Sciences Po (CERI) and Visiting Fellow at the LSE's European Institute.
His main research interests are: EU legitimacy and democracy; Politicization of the European institutions; Integration of the Eurozone and governance of EMU; Integration and differentiation (multi-speed Europe) and future of the main levels of European integration.
He is the author of many books on European issues including (with Y. Bertoncini), Politique européenne. Etats, pouvoirs et citoyens de l’Union européenne (Presses de Sciences Po-Dalloz, 2010) and (with Jean-François Jamet and Christian Lequesne) L’Europe d’après. En finir avec le pessimisme (Lignes de Repères, 2012). He is co-editor of Schuman Report on Europe. State of the Union.