In 2002, he accepted an invitation for a chair at the University of Veterinary Medicine Vienna, and next year, he became to the chair of microbial ecology at the Nutrition and Food Research Center ZIEL. 2003 ordained Managing Director of the ZIEL.
In 2002, he took up a position as chair at the University of Veterinary Medicine Vienna, and the following year, he became the head of microbial ecology at the Nutrition and Food Research Center ZIEL. In 2003, he was appointed Managing Director of the ZIEL.