More info
They require experienced aircrew. Bill is the man to contact and he will generate interest (or not if you do not fit) he will give you all the info you need. There is no right answer as it is case dependent. They serve to 60 years old and I believe the norm is, they want you to serve at least 9 years. However, you need to get citizenship within 4 years as you start work there on a citizenship waiver.
Speak to Bill.