I'd say the only websites for jobs in Spain in English would be, say, ...
www.Monster.com and maybe
www.HotJobs.com . I doubt there are many listed jobs where limited Spanish wouldn't hurt you. I mean, if your Spanish isn't good I doubt any/many jobs posted on these online sources would be the place to go. Most unqualified, English-speaking available jobs would more than likely be more local. So, in this case, you MAY have to simply wait until you arrive to start looking.
Anyone else have some direction for chelsea? I do wish you luck. It'll be a tough task.
Saludos, MadridMan