From December, 1993: Postgraduate Assistant Researcher
From November, 1994: Assistant Researcher
From March, 1996: Senior Assistant Researcher
From February, 1997: Postdoctoral Associate
From 2000: Research Associate
From 1995: Assistant for physics (part time)
From 1998: Assistant for physics (full time)
From 2000: Assistant Professor of Physics
From 1992: Scientific Associate
1999/2000: Full time Scientific Associate
From 2000: Scientific Associate