This company is a mess (the national geographic expeditions office). They have no interview structure. They have a poor online presence of their job opportunities. They are representing National Geographic in such a bad way that they are tarnishing the reputation of the company. If you get an interview, my suggestion is to run the other way because the office has no organization. By the end of my communications with the office, I didn't want an offer because I saw how the office was in shambles.