西南交通大学
Returning to China, Mao was on the faculty of five major universities and served as president of four, such as the professor and President of Tangshan Engineering College of the National Chiao Tung University (now Southwest Jiaotong University), Dean of Engineering College of National Southeastern University (later renamed National Central University and then Nanjing University, the engineering school of which later became Nanjing Institute of Technology and then Southeast University), President of Hohai Technology University (now Southeast University and Hohai University), President of Peiyang University (now Tianjin University), President of China Chiao Tung University (later renamed Northern Chiao Tung University, with campus in Tangshan and Beijing, later Southwest Jiaotong University and Beijing Jiaotong University), President of Director of Project Office of Hangzhou Qiantang River Bridge, and Director of Bridge Planning Project Office of Transportation Ministry of Kuomintang Administration.