It’s based on three interviews, excluding the first one with HR, in the others, there are always two interviewers, which is a very important detail to reduce bias. It's clear that the interviewers have extensive interview experience (beyond their vast technical expertise). They don't just assess your knowledge of a specific library; I understand they're evaluating broader criteria. In my experience, it's one of the best processes I've ever undertaken, regardless of the outcome. It's clear that the company's values ​​are reflected in the interviews.

Nice experience overall with a few rounds of technical and behavioral interviews. Seems they value more the behavioral part since their positions are remote first. Easy leetcode style problems and other questions related to concurrency or system design. Behavior interview is more serious than expected and is better to prepare before, use STAR framework.