Noora Arajärvi has received her Ph.D. at the European University Institute. She serves as a social media coordinator and elected member of the Co-ordinating Committee of the Interest Group on International Legal Theory and Philosophy of the European Society of International Law, and as a rapporteur for Oxford International Organizations Database (expert area: United Nations and the rule of law). She has worked as a research officer on the ‘The Accountability Deficits of Major Western Powers’ project at the University of Essex, as postdoctoral fellow with the Berlin Potsdam Research Group ‘The International Rule of Law – Rise or Decline?’, and as Associate Rule of Law Officer in the Executive Office of the Secretary-General of the United Nations. Previously, she was a law lecturer at the University of Central Lancashire, Cyprus Campus, and at the University of the West Indies in Trinidad and Tobago. She has also been a visiting researcher at the Max Planck Institute for Comparative Public Law and International Law in Heidelberg and Fordham University in New York City.

She is the author of The Changing Nature of Customary International Law: Methods of Interpreting the Concept of Custom in International Criminal Tribunals (Routledge). She is a regular speaker at conferences and has delivered invited presentations at the Center for Transboundary Legal Development at Tilburg University, Annual Conference of the American Society of International Law, the German Federal Ministry for Economic Cooperation and Development, and the European University Institute. Her current research includes the Sustainable Development Goals, international drug law, theories of compliance and accountability in international law, and the continuing exploration of the essence of customary international law.