Sef Heijnen has 15 years of experience working in industry and is since 1988 full professor at the TU Delft and group leader Cell Systems Engineering at the Department of Biotechnology. His group is focused on metabolic engineering and systems biology for application in industrial microbial processes. He teaches BSc- and MSc-level courses, including metabolic engineering, systems biology, thermodynamics and bioprocess design. In addition, he teaches advanced courses like microbial physiology, environmental biotechnology and fermentation technology for industrial partners and PhD students. In 2003 he was elected TU Delft’s best lecturer of the year. He is member of the Royal Netherlands Academy of Arts and Sciences (KNAW) and advisor of DSM and Corbion.