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. 1993-9- 1 Senior Engineer of Processing Room of Daqing Oilfield Design Institute
5. 1994-5-24 Chief Engineer, Process Room, Daqing Oilfield Design Institute
6.1996-10-16 Deputy Chief Engineer of Daqing Oilfield Design Institute
7. June 2002-1 Chief Designer of Daqing Oilfield Design Institute
8.2007- 12-30 Senior Engineer of Daqing Oilfield Design Institute.
Specialty and field: ground construction and oil and gas storage and transportation.