it was a short 15 min interview on Skype. Basic questions about experience and fellowship. Spanish language skills tested- they switched into spanish the last few minutes to make sure that you can communicate

The interview was short- 30 minutes long. The majority of it was in english so I wouldn't worry too much about getting Spanish to tip top shape. They asked me one question in Spanish at the end about an anticipated difficulty. For this question, it did not seem like they actually cared what I said, as long as I showed some level of proficiency in the language.