ترجمة - تركي-انجليزي - çıraklığını yapmadığın iÅŸin, ustalığını...

you cannot be an expert at THIS job BECAUSE you have not done an apprenticeship for IT

Why do you say that it means THIS job? I don't see that.

CC: katranjyly

Isn't iÅŸin your job?

No - the ending is there because it is a possessive construction, connected to the phrase that follows it. Literally, it is translated as follows:

The job for which you did not do the apprenticeship, of it you cannot do the "expertship" [that's not a word].