Oliver Hailes is a PhD candidate at the Lauterpacht Centre for International Law, University of Cambridge, researching international law and investment arbitration on a Woolf Fisher Scholarship. He is co-Editor-in-Chief of the Cambridge International Law Journal and Assistant General Editor of the ICSID Reports. Oliver is admitted as a barrister and solicitor in New Zealand, where he served as a judge's clerk in the Court of Appeal, practised in commercial litigation at Chapman Tripp, and lectured at the University of Otago. He holds bachelor's degrees in law and political science from Otago and a master's degree in international law from Cambridge. He also studied at Fundação Getulio Vargas and The Hague Academy of International Law. Since 2020, Oliver has taught graduate workshops in international investment law at Cambridge. In 2021, he worked as research associate at the University of Oslo's PluriCourts Centre for the Study of the Legitimate Roles of the Judiciary in the Global Order. In 2023, he begins a permanent position as Assistant Professor in Law (International Arbitration) at the London School of Economics and Political Science.