Need Help - Question -

Hello
I have received an attractive offer to work in Qatar, however, I started to read in the net about the sponsorship laws, is it true that an employee cannot quit or will be banned from leaving the country? and what is the solution ion this case? can the embassy interfere? I do not really understand or believe that this is true and happened to people in intellectual jobs. Your advice is welcome, thank you

Welcome  to Qatar
don't worry about this
There's loss and everything is fine you can have under training  period 
Don't let this chance go away
yours