2011 – present Professor Topreferral Health Care of Companion Animals, Department of Clinical Sciences of Companion Animals,
2014 – 2017 Chair Department of Clinical Sciences of Companion Animals
2013 – 2014 Vice Chair Department of Clinical Sciences of Companion Animals
2012 – 2016 Member of the Faculty Board, Faculty of Veterinary Medicine, Utrecht University
2006 – 2011 Associate Professor, Department of Surgery, University Medical Center Groningen
2006 – 2011 Director Division of Oncology, University Medical Center Groningen
2003 – 2011 Founder and director of Vetarch, veterinary consultancy
2002 – 2005 Manager Business Affairs, Department of Surgery, UMCG. Development and Start-up of the BioOptical Imaging Center Groningen
2001 – 2002 Staff member Care Facilities, University Hospital Groningen, The Netherlands
2000            Diplomate European College of Animal Reproduction
1998 – 2000 Program manager of the Dutch Paratuberculosis Program, Animal Health Services, Drachten, The Netherlands
1999            Specialist Bovine Herd Health Management (RVNA)
1998            Specialist Equine Reproduction (RNVA)             
1984 – 1998 Veterinary Practitioner, Veterinary Clinic Marum, The Netherlands
1982 – 1984 General practitioner Curaçao (N.A.). Start-up of veterinary care on Bonaire (N.A.) as project leader and veterinary practitioner
1980 – 1981 First lieutenant veterinary surgeon, Dutch Army Health Sciences. Epidemiologist, Directory of Dutch Army Health Services