- Professor (Privatdozent) of Neurosurgery, University of Basel
- Member of the Assembly of the Medical Faculty, University of Basel
- President of the Commission on Non-Invasive Neurosurgery (formerly Commission on Radiosurgery), Swiss Neurosurgical Society
- Editor Acta Neurochirurgica (The Europen Journal of Neurosurgery) and Surgical Neurology International (SNI)
- Reviewer for Acta Neurochirurgica (The Europen Journal of Neurosurgery), Surgical Neurology International, (SNI) Journal of Neurosurgical Sciences, Neurosurgery, Praxis Schweizerische Rundschau für Medizin, and Annual Research Prize of the Swiss Neurosurgical Society
- Member of the Commission on the Annual Research Prize of the Swiss Neurosurgical Society
- Board of Medical Directors, Klinik Im Park
- Scientific Advisory Board Wegweiser, Swiss Patient Group for Diseases of the Pituitary Commission on the Annual Research Prize of the Swiss Neurosurgical Society
- Medical Director Gamma Knife Center Zurich
- President Neurosurgery Hirslanden Switzerland
- Secretary and Treasurer, Swiss Neurosurgical Society
- Board of Neurosurgical Education and Neurosurgical Board Exams, Swiss Neurosurgical Society
- Executive Board and Board of Medical Advisors, Swiss Patient Group for Parkinsons Disease
- Appointee for advanced training in radiosurgery of the central nervous system for interns and residents of Neurochirurgische Klinik, Kantonsspital St. Gallen