An associate in the Litigation Department, César Rivière represents a wide variety of clients in litigation and international arbitration matters, including complex commercial and investment disputes arising out of international business transactions, cross-border affairs and public-private partnerships in the aviation, luxury goods, professional sports, defense, telecommunications, reinsurance, energy and real estate industries. César regularly contributes to leading publications on international law and corporate matters.

During law school, César served as the managing editor of the Columbia Journal of European Law, and served in the French government as an intern in the Diplomatic Unit of the Présidence de la République (2018) and in the Office of the Law of Obligations of the French Ministry of Justice (2016).

Co-author of The Interaction of European Investment Law with Public International Law, ICCA Congress Series No. 21: Arbitration's Age of Enlightenment? (2023)
Customary International Law as the Source of Denial of Justice Treaty Claims Resolution, Investment Treaty Arbitration and International Law - Volume 16 (2023)
Co-author of The U.S. Foreign Corrupt Practices Act in International Commercial Arbitration, La Revue Trimestrielle de Droit Financier (2021)
Co-author of Intergovernmental Organization Immunity After JAM: A Copernican Revolution For International Cooperation?, La Revue Trimestrielle de Droit Financier (2019)