Looking for a career option that involves humanitarian work, based on what I'm studying in the college?

I'm studying math/comp sci/advanced stat, and I speak fluent spanish. I'm looking for any ideas for a career (I still have a ways before I pick a career, obviously) that involves humanitarian work in Latin America, especially Guatemala. Guatemala's a personal preference, but anywhere in spanish-speaking latin america would be good. Does anyone have any ideas for a job like this where my skills would be useful? Thanks!