David Du is a CTO, Co-Founder at EigenPhi. He possess expertise in java, c, c++, software engineering, python and 25 more skills. He is proficient in English. Colleagues describe him as "David and I worked closely together at Chanjet for more than four years. During that time, he was the director of Chanjet social app development team. I always found David to be very technical, dedicated and professional, as well as very good knowledge about the system design. He was very precise to set his expectation with the team. David demonstrated how he and his team could provide best product to their customers in a timely manner. David also known to be very calm under pressure but still provide quality app within limited time and resource." and "David (Yu) Du was a lecture at Harbin Institute of Technology, when I an undergraduate there, he worked very hard and prepared very well for his class, he could make the difficult content of his class readily understood by his students. He was very humorous, students liked his class very much."