Actually I previously made 9000 RMB a month for 20 hours a week in Changzhou. Soon I will be headed to Tianjin and be making around 12000 with a housing allowance of like 4000RMB (obviously much more than needed), for 19 hours a week.

No teaching certification. But I do have three years of experience in China.

High paying good jobs are out there. But they fill up fast and are usually internal. I must say though, when I started in China I made 4000RMB a month. But that was in Yuncheng, Shanxi three years ago.