since 2016 Deputy Chief Dept. of General Neurosurgery, University of Cologne 2010 - 2015 Attending Neurosurgeon, Dept. of General Neurosurgery, University of Cologne 2008-2010 Attending Neurosurgeon, Dept. of Neurosurgery, Grosshadern Hospital, LMU Munich 2001-2007 Residency, Dept. of Neurosurgery, Grosshadern Hospital, LMU Munich 2000-2001 Intern, Dept. of Neurosurgery, University of Wurzburg