I am a faculty member at the CISPA Helmholtz Center for Information Security and a professor for computer science at Saarland University. I obtained my Ph.D. in 2003 from Stanford University. Since 2003, I lead the Reactive Systems Group, which became part of CISPA in 2020. My research focus is the development of reliable guarantees for the safety and security of computer systems, including specification, program synthesis and repair, and static and dynamic verification.