How to obtain a GTEP contract

I’ve been told about a GTEP contract. I entered development and I’m aiming for SR.

How can I get this sort of contract? As mentioned before I just entered development, but I haven’t officially passed an IFT yet.

Im guessing this is something to ask my recruiter about, but any information on getting a GTEP would be appreciated because I want to know what I’m talking about when I ask.