This has been answered over and over.
I strongly suggest that you look at some of 'RedBullGaveMeWings' other posts where the exact same question has been answered - over and over.
You do not get 'hired' at a F1 school. If you do not understand the rules regarding F1 visas then that is the first thing you need to go and investigate.
I recommend that you read up on what Optional Practical Training is in regards to the F1 visa.
You cannot make an informed decision unless you have a clear understanding of the rules that you have to play by.