Senior engineers are divided into two levels and three categories: senior engineers (deputy high school), researcher-level senior engineers (Gao Zheng) and professor-level senior engineers (Gao Zheng).

Senior engineer corresponds to associate professor of education, research associate researcher, researcher-level senior engineer corresponds to research researcher, and professor-level senior engineer corresponds to education professor.

Senior engineers are technical experts or experts in the field of engineering, which play an irreplaceable role in enterprises and have strong working ability.