Duan Dong, the current vice president of 58 cities. He used to be the vice president of Beijing Red Kids Information Technology Co., Ltd. and the human resources director of Sina. And participate in the construction of Carrefour (China) human resources system, responsible for training management; He presided over the completion of the work of Concord Group, Haihong Holdings (listed companies), WTO Group and other enterprises. He has rich experience in human resources development, management and organizational development in the fields of business circulation and IT, and is a well-known manager in the IT field in China, an expert in human resources columns of CCTV, cetv and Southeast Satellite TV, a director of the Beijing Chinese and Foreign Enterprise Human Resources Association, a certified lecturer of the American Salary Management Association, and a human resources consultant of the Study Abroad Guidance Center of the Ministry of Education in China.