Rollbox Ruby On Rails Developer interview questions

I had a personal interview in their office and it was very pleasure to know them. They were very transparent when explaining his business, as well as the profile and knowledge they were looking for the position, as a Senior Ruby on Rails developer. They finally did not make an offer, but they introduce me into Circular (previusly known as The Hiring Circle), private-based network of recruting and recommendation and it was very heplful because it gave me access to a very selected group of interviews with top-notch startups in Madrid area. I'm very grateful, thanks!