At the first, they asked me about my previous experience. After that, I was invited to a meeting with them. There I explained to them about my current experience, and they gave me an exercise to do. I would need to create an app that should have items to sell and the user would do a login using some Social Network API such as Facebook. I've created it using Ionic. After delivering the App to them, they invited me again to discuss the code. Finally, I was in.