I saw this one too, got the e-mail from the recruiter. 42 days on, 16 off for 15800/month.
I did some checking on the web site for the airline and it did not show the A320 orders yet so who knows what type of schedule you will have. They went from RJs to E-jets with quite a drop in schedule a couple of years ago. It would be interesting to see just how stable their backing is. And Tianjin is only about 150 kms from Beijing.