Kei also serves as the Assistant Professor and AIAS-COFUND Fellow at the Aarhus Institute of Advanced Studies, Aarhus University, Denmark. He is the author of Hannah Arendt and Isaiah Berlin (Princeton University Press) as well as a number of essays and book chapters in scholarly journals, academic presses, and media and think tank outlets.

His prior experience includes Carnegie Council for Ethics in International Affairs, a New York-based non-profit organization devoted to research and education in ethics.

Kei holds a DPhil from the University of Oxford and previously held fellowships at Oxford and l’Institut d’études avancées de Paris.