Olivier is an international consultant with expertise in trade and development. Previously, he had been working as a Senior Trade Specialist at the World Bank, in Washington, D.C, managing the Global Trade and Financial Architecture project and advising developing country governments on trade policy reforms. Earlier, he was responsible for trade policy at the Agence Française de Développement. He also worked as an adviser and speechwriter to French ministers and members of Parliament, and as a trade expert in international organizations. Olivier has taught at various institutions, including SciencesPo Paris, the University of Paris I Panthéon Sorbonne, and the Ecole Nationale des Ponts et Chaussées.