The interview process has several steps.

First, there was a phone interview with the HR assistant. We were talking about the position, my experiences, and my motivation. It was very useful, and after that, I received immediate feedback.

An online test followed on Hackerrank. It was interesting, with a lot of different questions, but not so complicated. I liked it.

Next round was a Google Hangouts meeting with two lead developers. We were talking about the product and the technical challenges, and I was also challenged by an online coding task. They were kind and open, and I could ask questions too.

Again, I got feedback very soon (after about an hour) that I could proceed to the next step with a product manager. For that, I received a detailed description of the objective and the potential questions, which was really useful.

The interviewer was friendly, and the questions and topics were challenging.

I got positive feedback again very soon.

Last round was planned to be with the VP of Engineering and one of the co-founders. Unfortunately, we could not find a proper time that would fit for all. Finally, I was talking to the VP and one of the lead developers.

We were talking about motivation, and there were a lot of technical and architectural questions.

This did not work out as much as I expected, so finally the process has finished at this point. My application was rejected:(

Anyhow, my overall impression is really good. The organization of these interviews was very professional. For each interview, I received a detailed description so that I could prepare for it. The appointments were coordinated with an online calendar.

Write an API for a phonebook service where the answer time (search name by phone number) does not depend on the size of the phonebook.