Stefan is a Teaching Fellow at KCL's Defence Studies Department teaching Command and Leadership as well as International Relations, Security Studies and Civil Military Relations at the Joint Services Command and Staff College of the UK Defence Academy. He is also the School Research Manager for the School of Security Studies at King's College London, responsible for grant development and funding support for academics at the War Studies Department and the Department of Defence Studies of KCL.

Stefan has submitted his PhD at King's College London on Cohesion and Social Identity in military units in June 2019, and is currently pursuing a conversion course in Psychology, focusing on social identity, moral psychology and resilience. Stefan has worked closely with the Royal Marines and accompanied various units on military excercises overseas.

Before joining King’s, Stefan has been working at the University of Heidelberg as a Teaching Assistant, supporting courses on U.S. Foreign Policy, Military Interventions and Foreign Policy Analysis, worked at the German Council of Foreign Relations, organising conferences on NATO strategy in Afghanistan. Stefan holds an M.A. from the University of Heidelberg in Political Science and Political Science of South Asia; and has studied at the University of Toronto's Munk School for Global Affairs and at the Shanghai International Studies University.