Yes, Spain is an active European center for ESL teachers. Maybe the most active (Turkey and Russia are other hotspots iirc).
No, this job doesn’t sound good. If you want to work in Spain, there are better opportunities.
FWIW, my friend taught in Spain. He didn’t like it. He was stuck somewhere rural and said the kids had some kind of superiority complex; they either treated him like garbage, or just ignored him.