If you read the link they’re not looking for FOs, it’s Capts they need. It also shows the majority of those positions require PIC (aka Capt time) in large aircraft and that’s why they have a problem. If you’ve got Boeing or Airbus PIC time that means you’re flying for a Major. While the pay they’re offering is good, salaries have come up considerably over the last couple of years so if I am a Boeing or Airbus Capt at a US Major, why would I want to pack and move to China?
If that’s truly your goal I recommend after you complete your training and build your 1500hrs you look for an airline that flies EMB190’s and hope for a fast upgrade. IF you can do that and IF Tianjin is still flying and looking for EMB190 Capts you’ve got a chance. Otherwise I really don’t see how you could train and get your 1500hrs (2yrs so you’re 50), fly as a Regional FO for an optimistic 3yrs (you’re 53), upgrade and fly for another min 2yrs as a Capt (you’re 55 so you’re not going to a Major), maybe get hired by Spirit or Allegiant to get some baby Bus time but again you’re talking 4-5yrs to upgrade and another to build the 1000hrs PIC in type and you’re 60 and done. Make sense?
I’m actually really familiar with this subject as I seriously considered going to China when I was downgraded and have a few friends there now. I also have no idea about your health but the Asian medical exams make ours look like a joke. Your BMI must be low (I believe < 28?) and no high BP, or any other fairly common ailments. Just FYI.