· Associate Professor, Department Of Physics, Stockholm Univeristy, Stockholms universitet2012–
· Assistant Professor, Nordita2007–2012
· Post-doc, Microsoft2006–2007
· Post-doc, Caltech2005–2007
· Post-doc, University of Illinois at Urbana-Champaign2002–2005
· Ph-D Student, University of Amsterdam1998–2002
· Ph-D, theoretical physics, University of Amsterdam1998–2002
· master, theoretical physics, Leiden University1993–1998