First of all I had a quick call with the HR, then they sent me the test task to fetch and render some data from the API and do a small css work. Then I had a few hours interview in the office with the technical people and then with the top management. They sent me an offer the next working day. In general the interview wasn't hard for me, we just discussed the code I've done and few edge cases. The interview with the top management was pretty relaxed and friendly. Don't worry about it. The overall timing of the in-office interview a little bit scared me first, but then I realized that some part of that time, they will just show you the both offices, the team and the coffee machine and give you a proper pause between the sessions =)