| Since 2020 |
International Behavior Analyst and Advisor (International Organziation
for Behavior Analysis) |
| Since 2015 |
Editor of the practice series "Autism Concrete" by
Kohlhammer Publishing |
| Since 2014 |
Supervisor DGVT (German Society for Behavior Therapy) |
| Since 2013 |
Supervisor BCBA (Board Certified Behavior Analyst) |
| 2012 - 2014 |
Deputy Chair of the Institute for Research in Autism, Jacobs
University of Bremen |
| 2009 - 2012 |
Consultant and Supervisor at
Pacific
Child and Family Associates |
| 2009 - 2013 |
Lecturer at the Department of Psychology,
University of Hildesheim |
| Since 2007 |
BCBA (Board Certified Behavior Analyst) |
| Since 2006 |
International consultant |
| Since 2005 |
Trainer for the German Association of
Behavior Therapy (DGVT) |
| 2003 - 2014 |
Editor of the Autism News of Orange County and
the Rest of the World |
| 2001 - 2016 |
Consultant at Wee Care Singapore: Early Intervention and Rehabilitation |
| 1992 - 2002 |
Editor of the Autism News Singapore |
| 1988 - 2001 |
Senior Lecturer and Associate Professor, Department of Social
Work & Psychology, National University of Singapore; Head of
the Autism Research Center and the Behavior Intervention Center
for Children (BICC), National University of Singapore |
| 1989 - 1998 |
Coordinator of the STEP Program (Structured Teaching Program for
Exceptional Children),
Rainbow Center, Singapore |
| 1988 - 1989 |
Coordinator of the Early Intervention Project, Rainbow Center,
Singapore |
| 1981 - 1988 |
Head of the Psychological Services and school psychologist at
the Rehabilitation Center Johannes-Anstalten Mosbach |
| 1977 - 1981 |
Parent trainer and assistance director at the Los Ninos Center,
San Diego (now: Sam & Rose Stein Education Center) |
| 1976 - 1977 |
Research assistant at the Department of Clinical Psychology, University
of Göttingen |
