2. 1983-7- 1 Assistant Engineer of Process Room of Daqing Oilfield Design Institute
3. 1987-9- 1 Engineer of Process Room of Daqing Oilfield Design Institute
4. 1992-9- 1 Senior Engineer, Process Room, Daqing Oilfield Design Institute
5.1995-12-1Deputy Director of Technical Office of Daqing Oilfield Design Institute
6. 1999- 12-5 Deputy Chief Engineer of Daqing Oilfield Design Institute
7.2005- 10- 18 Professor-level senior engineer of Daqing Oilfield Design Institute.
Specialty and field: ground construction and oil and gas storage and transportation.