We congratulate Sebastian Ertel for having successfully defended his PhD on September 4th, 2019.  Sebastian worked with us from May 2015 (check out the announcement from back then) and, while we are sad to see him leave, we wish him all the best for the future. Sebastian presented his work on “Towards Implicit Parallel Programming for Systems” in front of family, friends, colleagues and a jury composed of five university professors. Michel Steuwer, a professor at the School of Computing Science at the University of Glasgow, acted as second reviewer and spent two days visiting the CC Chair.