JP
1. Go to the Jet2.com web site.
2. go to the bottom of the page and single left click on careers.
3. Top left of page left click on pilot recruitment.
4 select which category you fit in and continue from there.
I will say though though that as you haven't had the initiative to do these very basic steps for yourself are you sure you can take responsibility for 150-230 pax.
You can specify a base preference, whether you get it depends on how much they want you and what your qualifications are.
All the best