NOC Code

[Naveen91]

Hi,
I'm traveling to Canada on study visa this month end. My last day at office is today.

Do I need to get roles n responsibilities certificate from my manager ?

I work in aerospace related IT sector.

Under which NoC category should I get the letter for future reference?

Also if anyone have format of it please send it to me.
Speedy reply is much appreciated.
Thanks in advance