- Management of the staff at a vocational college with 110 teachers and 10 non pedagogical employees; 2014 - 2016
- Partly managing 125 teachers and 15 non pedagogical employees at technical vocational college in Bonn; 1998 - 2013
- Coordinator of the land surveying and geoinformatic teachers section of North-Rhine-Westphalia; 2000 - 2013
- Organizing and managing all vocational land surveying teachers in the state of North-Rhine-Westphalia in terms of further vocational training and education; 2000 - 2013