If you are dreaming to work for an international organization, I would strongly recommend you to start learning English.
Nowadays, all leading companies operate in English, it helps them to be efficient and recruit the most qualified people from all over the world.
The great example is the United Nation. It’s a very prestigious organization, which provides an excellent conditions for employees, wide range of bonuses and loads of traveling opportunities. And all stuff communicate English. Even though knowing other languages would be your extra advantage.