Chair, Section of Pediatric Neurosurgery (EANS)
Neurosurgical Registrar, Dept. of Neurosurgery in Liberec, Czech Republic (1997-2005)
(Senior) Consultant Neurosurgeon, Dept. of Neurosurgery, Oslo University Hospital-Rikshospitalet, Norway (2005-currently)
Leader of Paediatric Neurosurgical Research Group at the Institute of Clinical Medicine, University of Oslo/Oslo University Hospital, Norway