Remote contract opportunities for a globetrotter who knows seven languages?

A well-travelled, brilliant, personable friend of mine is fluent in Russian, French, English, Italian, and Spanish with intermediate proficiency in Arabic and Danish. She's considering taking a gap year from university to travel the world one year from now, but she's worried about being able to find stable income during her travels. What kinds of opportunities should she be looking at, and what sorts of temp/contract offers (or full-time offers) should she expect to receive during this time?

She does have dual US citizenship, so government employment is one option. Aside from that, I was thinking she could look into representing tech startups at international events on contract, recruiting, hosting events, teaching for short periods of time, or possibly other things.

I'm pretty convinced that someone like her would be in high demand, but we don't quite have a concrete idea of where exactly to find that demand. Any tips?