I am a systems engineer, computer scientist and aviation accident analyst; I specialise in root cause analysis, reverse-engineering and formal methods for safety-critical systems development and hold a private pilot's license. I have a German Diploma in computer science and a PhD in engineering (Dr.-Ing.), have held university lectures in computer networks and system safety and security for the last 7 years. I also work in a small engineering consulting company where I have done several analyses of aviation accidents, reverse-engineered system functions from publicly available user documentation and evaluated avionics systems and human-machine interaction, especially the role cockpit indications (or lack thereof) and of crew training in aviation accidents. I fly a small single-engine airplane for fun and sometimes for business trips. I also play the piano, keyboards, recorder and tin whistle. I am married and we have three children.