Public Interest Law Center

Current ICJ Clerk

Céline Braumann
Céline Braumann LLM ’16 has worked as a Researcher and Lecturer for Professor August Reinisch at the University of Vienna since 2016. Céline taught courses on public international law, international law aspects of international taxation, and international law & development and coached the Viennese teams for the Philip C. Jessup and the Frankfurt Investment Arbitration Moot Courts. She is an Associate Editor of the Oxford Reports on International Law in Domestic Courts and has published numerous articles and book chapters on international economic law, the sources of international law, and human rights law.


During her LLM at NYU as a Fulbright Scholar, Céline was a Research Assistant to Visiting Professor Phoebe Okowa and a member of NYU’s Global Justice Clinic, where she co-drafted a shadow report for the CEDAW Committee. She was also awarded Best Oralist for the Prosecution in the U.S. National Rounds as a member of NYU’s ICC Moot Court team. Prior to her LLM, Céline interned at the Office of the Prosecutor of the ICC. She obtained her first law degree and a B.Sc. in economics at the University of Vienna, the former as the best graduate in 2013/2014.
Felix Boos


Felix Boos LLM ’19 worked as a Research Associate for Professor Andreas Zimmermann at the University of Potsdam from 2016 until 2018. In that role, Felix was junior counsel in a case before the International Court of Justice and served as an Assistant Editor of the 3rd Edition of the Commentary on the ICJ Statute. Prior to that, Felix was a Research Assistant in investor-state arbitration for Professor Stephan Schill at the Max Planck Institute for International Law.
Felix obtained his LLM from NYU Law where he was a Hauser Global Scholar and a Fulbright Scholar. As a member of NYU’s International Organizations Clinic, he advised UNICEF Innovation on a suitable data governance framework. During his time at NYU, Felix served as a Research Assistant for Professor José E. Alvarez and worked on data governance issues with NYU’s Guarini Global Law & Tech initiative. Felix received his First State Exam from the University of Heidelberg graduating in the top 5% of his class. He has also published several pieces on international law, including in the Journal of International Criminal Justice.
Tim McKenzie JD ’16 has been an associate at King & Spalding LLP since 2016.  As a member of the firm’s international arbitration and litigation practice, his experience includes acting in investment treaty and commercial arbitrations under the ICSID, UNCITRAL, and ICC Rules, as well as in cross-border litigation matters before U.S. state and federal courts.  Tim’s practice at King & Spalding includes both French and Spanish-language cases.

Tim obtained his JD from New York University School of Law, where he was a Senior Executive Editor of the NYU Journal of International Law and Politics, winner of the International Human Rights Award and a Lloyd N. Culter / Salzburg Seminar Fellow.  Tim performed work on behalf of the United Nations Development Program as a member of NYU’s International Organizations Clinic and was also a two-time member of NYU’s Philip C. Jessup international law moot court team, winning the U.S. National Championship in 2015 and finishing among the top 8 teams worldwide in 2016.  Tim obtained his B.A. magna cum laude in international relations from the University of Pennsylvania in 2011.
Nawi Ukabiala LLM '14 has notable experience extending across several areas of international law. Since 2015 he has been an associate in Debevoise & Plimpton’s New York office. As a member of the firm’s International Disputes Group he has acted on investor-state arbitrations administered pursuant to the ICSID Convention and international commercial arbitration proceedings under the auspices of the International Chamber of Commerce. Nawi is also an active member of the firm’s Public International Law practice group and has advised clients with respect to a wide range of public international law issues including matters pending before the Inter-American Commission of Human Rights. In addition, Nawi is active in the firm’s Business Integrity Group advising major multinational corporations concerning compliance with international human rights norms.
Prior to joining Debevoise, Nawi worked as a legal consultant in the Operations Policy Group of the World Bank’s legal department and clerked for the Iowa Supreme Court. Nawi obtained his LL.M. in international legal studies from New York University School of Law where he was a transitional justice scholar and International Finance and Development Fellow. He received his J.D. from Drake University Law School summa cum laude and Order of the Coif. Nawi has published numerous pieces on various issues of international law.