| 1993 - 2000 | Teaching and Research Assistant at LIMSI-CNRS, Université Paris-Sud, France. | | | | |
| 2000 - 2003 | Senior Researcher at the Dialogue Systems Group of DaimlerChrysler Research and Technology, Ulm, Germany. | | | | |
| 2003 - 2011 | Professor of Engineering Science, Institute of Information Technology, Ulm University. | | | | |
| 2005 - 2010 | Member of the Committee of Study Affairs, Faculty of Engineering and Computer Sciences, Ulm University. | | | | |
| 2006 - 2008 | Dean of Studies, Faculty of Engineering and Computer Sciences, Ulm University. | | | | |
| 2008 - 2023 | Member of the Admission Board for Study Programmes, Faculty of Engineering, Computer Sciences and Psychology, Ulm University. | | | | |
| 2009 - 2010 | Member of the Examination Board of the joint B.Sc./M.Sc. Study Programme “Information Engineering”, Faculty of Engineering and Computer Sciences, Ulm University. | | | | |
| 2006 - 2025 | Director of the Interns' Office, Faculty of Engineering, Computer Sciences and Psychology, Ulm University. | | | | |
| 2011 - present | Professor of Engineering Science, Faculty of Engineering, Computer Sciences and Psychology, Ulm University. | | | | |
| 2017 - 2022 | Co-Director of the International Research Laboratory Multimodal Biometric and Speech Systems at ITMO University St. Petersburg (Russia). | | | | |
| 2019 - 2024 | Member of the Habilitation Committee, Faculty of Engineering, Computer Sciences and Psychology, Ulm University. | | | | |
| 2020 - 2024 | Ombudsperson for PhD Programmes, Faculty of Engineering, Computer Sciences and Psychology, Ulm University. | | | | |
| 2022 - 2026 | Member of the Examination Board of the joint B.Sc./M.Sc. Study Programme “Information Systems Technology”, Faculty of Engineering, Computer Sciences and Psychology, Ulm University. | | | | |
| 2024- 2026 | ERSAMUS Educational Coordinator, Faculty of Engineering, Computer Sciences and Psychology, Ulm University. | | | | |
| 2024- 2026 | Member of the Examination Board of the B.Sc./M.Sc. Study Programmes "Engineering Sciences", Faculty of Engineering, Computer Sciences and Psychology, Ulm University. | | | | |