Yeng joined Zillow in 2006 and plays a major role in the production and quality of our Real Estate Market Reports. He also developed and implemented parts of the AVM that produces Zestimates. Prior to joining Zillow, spent four years at Samurai EC and Lehman Brothers, where he developed parts of real-time systems for market makers to quote and trade stock options and FOREX with various exchanges. He has also worked at Insightful Corp. as a developer of statistical software and at QUEST Integrated, where he worked on research projects in areas of computational fluid dynamics, computer-aided engineering and water jet machining. Yeng holds a Ph.D. in Applied Math from the University of Washington.