Professor Harang has developed and taught more than a dozen courses on peace theory, history, political science and peace philosophy at various universities since 2020.

He is currently based at Soka University of America, in southern California, where he has been a full-time professor since January 2023. Harang currently teaches classic philosophy, peace philosophy and nuclear disarmament diplomacy at SUA.

Professor Harang is also directing the Applied Peace Philosophy Project at the Ikeda Center for Peace, Learning and Dialogue in Boston, Massachu. Harang functions as Senior Peace Researcher at the center.

Professor Harang also serves as Senior Research Fellow at the Soka Institute for Global Solutions. In this work Harang has a special focus on the nuclear disarmament issues.