since 2021	Central Internationalization Officer of the Georg-August-University Göttingen
2009 - 2021	Vice President for International Affairs, Georg-August-University Göttingen (2009 - 2011 also for Research)
since 2004	W2-Professor for German as a Foreign Language and Linguistics, Department of Intercultural German Studies, Seminar for German Philology, Georg-August-University Göttingen
2003	Venia Legendi for the subject area „German as a Foreign Language (Intercultural German Studies)“, Faculty of Linguistics and Literature, University of Bayreuth; Habilitation on the topic: „Intercultural Everyday Communication between German Native Speakers and Anglophone US American Foreign Language Learners. On relational work in narrative, discursive and directive conversations.“
1997 - 2004	On behalf of the Institute for German Studies, responsible for the development and implementation of the study program „German as a Foreign and Second Language“ for student teachers, TU Braunschweig
1996 - 2004	Deputy Head of Language Center, TU Braunschweig Head of the Department „German as a Foreign Language“ Academic Councillor, Language Center, TU Braunschweig
1990 - 1992	Correspondence course in business administration, Bad Harzburg Business Academy
1989 - 1995	Lecturer for special tasks; Head of International Summer Courses, Language Center, TU Braunschweig
1987	Doctorate in Linguistics, Institute for German Studies, TU Braunschweig
1986 - 1988	Lecturer, German Academic Exchange Service (DAAD), Department of German Studies, Institute of Mechanical Engineering Shanghai, People's Republic of China
1984 - 1986	Scholarship holder Friedrich-Ebert-Foundation, Bonn
1982	Studies of German language and literature/history and English language and literature, higher teaching degree, TU Braunschweig, 1st state examination