1990-2000 Founded and headed an advertising agency with 25 employees

2003-2005 Head of IT company eTech Center eBookers based in India

2006-2015 CTO and CIO of a software development company in Switzerland (www.tws-ag.com)

2015 Started a social media agency for journalism projects in Germany (www.legito.me, www.flexedd.com, tws-ag.com)

Worked on various Projects as a freelance IT between year 2000 and the present.