Professor Beretz is a graduate in pharmacology. He spent one year as a post-doctorate at the Weizman Institute of Science (Rehovot, Israel). Since 1990, he is a member of the pharmacology faculty of the University of Strasbourg.
As a professor of pharmacology, he participated in teaching of molecular pharmacology and therapeutics in pharmacy for master degrees. His research deals with thrombotic disorders, vascular pharmacology and chronic vascular diseases
He was Vice-President in charge of technology transfer (2001-2006), and then President of the Louis Pasteur University in Strasbourg (2007-2008).
He was elected in January 2009 as the first president of the University of Strasbourg, resulting from the innovative merger of the three previous universities; he was re-elected in December 2012 for a second 4-year term. During his term, the University of Strasbourg was one of the first three winners of the French “Excellence Initiative” competition.
He has been since May 2014 the Chair of the League of European Research Universities (LERU) after being a member of its Board of Directors for 3 years. He has also been since 2012 president of Eucor, the European campus, grouping the universities of Basel, Freiburg, Karlsruhe, Haute-Alsace and Strasbourg.
In September 2016, he was appointed as Director General, Research and Innovation, at the French Ministry of Higher Education, Research and Innovation.