It all seems to depend on who you apply too.
My last employer put me through 3 full airframe and engine type courses plus 2 avionics and electrical courses. Boroscope, engine running, airstair, RVSM, human factors, recurrent etc.
I estimate about 35 weeks training spread over 8 years with most of it in the first 3 years.
There are some companies that take training seriously.