PNP on IEC

[Artur23]

Hi,
I still think how to emigrate
I go to the IEC and after about 3 months I will ask my employer for a long term job, by which I can apply for skilled worker PNP.
Perhaps the best option for me is Newfoundland and Labrador, because I must get job from NOC C or D.
Is after 3 months as I get this offer I will still on the IEC or I jump on the PNP or PNP entry takes longer? Somewhere I heard, that it takes about 6 months.
How long time I get permanent resident?
And most importantly, can I do everything  on IEC in Canada or I must back to my country?