Sometimes I am fascinated with differences between Europe and USA. turboprop, jet, command time, and so on...
Most of my friends started flying for commercial airline usually A320 and Dash-8 Q400 and there was no difference whether one fly C-172 and Pa-44 and had 220h flight time, or Mi-8 helicopter, or MiG-21, or some biz jet, or MD80 and has 2000hrs.
They took ATPL exam(just part of it), English language test, aptitude test and check ride on FNPT II. those that got contract, type rating and 200hrs of line training within company after which they are promoted to FO.