He has served as the technical director of Bluecoat System in Greater China, the partner technical manager of Riverbed Technology in Greater China, and the technical director of Computer Associates in China. He has rich experience and outstanding achievements in sales, pre-sales and after-sales technical support, channel and partner management, customer sales service and team building management. In 2018, he founded Beijing Dotouch Information Technology Co., Ltd. and served as the chairman. Dotouch is a leading enterprise in network communication testing in China. The products developed by Dotouch include the world's leading 5G core network simulation test instrument, 4-7 layer simulation test instrument, 5G multi-terminal simulator, programmable protocol stack, TSN test instrument, damage instrument and other products. Mr. Jun Mao holds a bachelor's degree in communication engineering from Beijing University of Posts and Telecommunications and a master's degree in communication and electronic systems from Beijing Jiaotong University.