If you have actual teaching credentials in the U.S. or other NES country, you can essentially work ANYWHERE you want in China.

The best High Schools (commonly called middle schools in Chinese because they are usually grades 7-12) are often affiliated with a University.

As another poster has written, 'High Schools' pay a higher salary but require more hours. Additionally, the class size is usually larger than at a University.

It IS more difficult to locate these jobs directly, but I personally would try. I recommend that you determine where you want to teach, then google that city name with foreign teacher English. The task then becomes sorting the responses into 3 categories: 1) recruiters 2) recruitment sites 3) direct school ads. #3 is preferable but will be few in number. #2 The recruitment sites (like the job section on this website) are a mixture of direct ads and agents. Again: choose the direct ads.

Remember that as a NES with actual teaching credentials you will be offered every job you apply for. You do not need a long list of possible employers.

Also, bare in mind that China has many schools that we would call 'junior colleges' for students age 15-19. The are usually trade oriented for students that have less academic skill and less money. As a FT at one of these schools, you would be treated like royalty. Like Universities, they advertise directly and call themselves something like 'college of tourism'. Most stewardesses and nurses are taught in 'colleges' of this type.

Please be selective about the position you accept. Please try to avoid dealing with a recruiter. A few extra hours of work online now will save you months of anguish if you sign a contract with a shady employer.