- Consultant for the "NA-BIBB" , Erasmus+, Key Action 2, since 2017
- Principal of “Geschwister-Scholl-Berufskolleg”, college for social professions; 2014-2016
- Vice principal of “Heinrich-Hertz-Europakolleg der Bundesstadt Bonn“, college for technical professions; 1998-2014
- Senior executive; 1996-1997
- Senior teacher at „Heinrich-Hertz-Berufskolleg der Bundesstadt Bonn“; 1992-1996
- Teacher at „Gewerblichen Bildungsanstalten der Stadt Bonn“; 1983-1992