Though I don't know much about career issues in Spain, I think it would be fantastic if your major is Spainish, and you want to work in Spain for a year. You will definitely find a lot of interesting things related with language and cultural there.
I know some foreigners are working in Shanghai. Just for your information, I can share with you what they are mainly working on.
Group 1: Language Teachers. (They teach English to Chinese students. I think you can teach English too in Spain)
Group 2: Tour guide or media and PR. Some of foreigners are working as a tour guide.
Group 3: There is relatively the group with more management skills and years work experience.
Hope this is helpful to you. By the way, I think the Sariel is right. You will find a lot of information online. Simply google for it.