I’d say 70% of jobs are found through people you know. If a bar job, chefs job or prop job becomes available chances are it gets filled through word of mouth.
You need to make friends here, build a good set of people around you and get out and about.
The majority of jobs in Benidorm will be in bars, some will place ads in the windows or the boards outside and it is also worth following bars on Facebook as this is where they will post any jobs.
For those seeking work outside the bar and club industry, say builders, mechanics, hairdresser and office jobs, this is pretty difficult.
You will most likely need to learn Spanish for a start, learn new skills to adapt to the Spanish way of doing things and quite possibly be prepared to try new lines of employment.
I would advise to make sure you have accommodation before you make the jump.
Do as much research as you can and remember it’s not a 24/7 holiday, the bills will need to be paid.