So in FAA speak you hold a commercial license and have passed your ATP exams. Congratulations, the FAA will issue you a private certificate limited to VFR. To get anything higher you would have to do the same thing a native born American would have to do, pass writtens and pass checkrides. To get an ATP level job in the US you will need 1500 hours. None of that will get you a job without a US passport or a "green card."