Applied through their website. The process took 2 months. I applied at the end of May 2017 and I've been contacted for an assignment by mid June. The assignment was quite open: build the backend and frontend of a small app. It took me about 1 week, considering that I worked on it during the evening/night only. About 2 weeks later I had the second interview via Skype: discussion about my background, experiences, projects, and few technical questions. It lasted about 1 hour. Third step face to face day-long interview, firstly technical on both backend and frontend development and then about devops, then with HR about the company culture, career ecc. Then 1 hour final interview with the CEO. People were very nice (specially the technical staff) and I enjoyed my time spent with them. Company uses cutting edge technologies and people seem passionate about their job. They are in a modern work environment. Overall a very positive experience. After a couple of weeks I got the offer, but eventually I decided to accept another offer. The company seems extremely selective so I can understand the negative reviews here, but they seem (reasonably) very keen to deeply check candidates.

Multi-interview process consisting of both technical and non-technical interviews, as well as conference calls with the team, the company's founders and CEO. The interview process mixed informal meetings to get to know each other, as well as more structured technical interviews.