NAS , B738 Capt, Contractor, Spanish base, 12 days off a month (not fixed roster, used to be, but, that was cancelled ) some minuses (base stability, possibility to be asked to "rest" during Winter. . . particularly your 1st year ) LGW/HEL available, but less chance initially. You will take on average €7000 after Spanish tax.
Better bet (IMHO ) than the Dreamliner Gig.