Hi Nat,
Jobs are advertised all year round on sites like www.wemploy.com and www.recruitspain.com, but sometimes it is handy if you are in Spain when you apply for them because they go really fast. But saying that, when I applied for my first job in Banus nearly 4 years ago, I was living in the UK but I still got the job... so its pot luck really.
Linekers is open all year round, so are all the other bars in the Linekers group such as Portside and Premier but Disco Inferno usually shuts for the winter.
Hope this helps.
Paul
http://www.paulscottondesign.com