As an interviewer, I always ask about version control. Doesn't matter which one the candidate has used, but if they can't talk fluently about it, that's a red flag. It's a proxy question for what I really care about, which is, has worked on a large complex system in collaboration with others.

Why would a developer be traveling frequently?

Also, business travel sucks, especially if you're entry-level.

If your product is a "platform" then you may often be visiting customers to work directly with their developers.

I agree on the travel. It can sound exciting from the outside, but airports, taxis, hotels and meeting rooms look the same whatever city or country you're in. Eating room service 5 nights a week gets old real quick.

Yeah, I guess so.

At one point I lived in NYC and worked in London. And loved it. Hell of a commute, though.