Li Jiahao shows his job offer at his home in Qingdao, East China's Shandong province, Dec 13, 2015. [Photo/CFP]

Tu Cao is a popular Chinese slang term that means to complain, mock or comment that a service is not good enough. Well, some companies have set up a position to professionally complain, called "Tu Cao officers", and they pay pretty handsomely.

Li Jiahao was a senior in college when he landed the job with a monthly salary of 50,000 yuan ($7,589) at an online travel agency last June. After competing with three other candidates for four months, the young man was appointed as the "Chief Tu Cao officer (CTuO)" with an annual salary of more than 1 million yuan at the agency.

The job is traveling, and then writing reports about his experiences with comments to help the firm to improve its service when new tourist routes are rolled out, Li said.