2019 – Emeritus Wilson & Senior Professor, Electrical & Systems Engineering, Washington University
2018 – 2020 President International Society of Bioelectromagnetism
2016 – 2018 Interim Chairman, Electrical & Systems Engineering, Washington University
2015 – CEO, ATM Cardiac Diagnostics, LLC
2004 – 2019 Wilson Professor of Engineering, Washington University, St. Louis, MO
2003 – 2019 Professor of Electrical & Systems Engineering, Washington University in St. Louis
2003 – 2005 Interim Chairman, Electrical & Systems Engineering, Washington University
2002 – 2003 Interim Chairman, Department of Electrical Engineering, Washington University
1999 – 1999 Acting Chairman, Department of Electrical Engineering, Washington University
1998 – …. Professor of Biomedical Engineering, Washington University in St. Louis
1996 Visiting Professor, Ragnar Granit Institute, Tampere University of Technology, Tampere, Finland
1985 – 1998 Professor of Biomedical Computing, Washington University in St. Louis
1983 – 2003 Professor of Electrical Engineering, Washington University in St. Louis
1979 – 1980 Project Manager, American Heart Association ECG Arrhythmia Database
1975 – 1983 Associate Professor of Electrical Engineering, Washington University in St. Louis
1975 – 1981 President, Aspen Signal, Inc., St. Louis, Missouri
1975 – 1980 Director, Clinical Engineering Program, Washington University in St. Louis
1973 – 1987 Research Associate, Biomedical Computer Laboratory, Washington University in St.Louis
1971 – …. Registered Professional Engineer, State of Missouri
1970 – 1975 Assistant Professor of Electrical Engineering, Washington University in St. Louis
- 1969 – 1970 Postdoctoral Fellow and Lecturer, Department of Electrical Engineering, Washington University in St. Louis