Throughout his career, Stefan has held positions as Senior Analyst at Wainhouse Research, Emerging Technologies Director at Polycom, as well as senior positions in product management and development at Siemens. Stefan holds a M.S. degree in Electrical Engineering from the Chemnitz University of Technology in Germany, and an MBA from Santa Clara University in California. Stefan is fluent in four languages, has authored numerous white papers and articles, and is a frequent speaker at industry events. Contact email: email@example.com.