Mixmax Software Engineer interview questions

First I had a quick phone call with the CTO about my background and the role. After that I was invited over for a lunch on their office. During the lunch I got to meet some of the engineers and their head of product. After the lunch I had a technical interview with one of the engineers. After that I was invited over for a full day onsite where I was asked to prepare a slide deck of my self and I had a technical interview the CTO. After the interviews I was invited over for a happy hour! The atmosphere was warm and welcoming. They did not just test my engineering skills but also put an effort to get to know me as a person.