· Board Member, Dispelix Oy2019–
· Professor, University of Oulu2018–
· Chief Scientist Of VR AR MR, Huawei Technologies2016–2017
· Principal Scientist, Oculus VR2012–2015
· Professor, University of Illinois at Urbana-Champaign2001–
· Assistant Professor, Iowa State University1997–2001
· Post-Doctoral Researcher And Lecturer, Stanford University1995–1997
· Doctor of Philosophy (PhD), Electrical and Electronics Engineering, University of Illinois at Urbana-Champaign1989–1995