Just as other have said. You get interviewed by people you should be leading and all they seem to do is try to find fault. You are required to go to the office for an interview that could have been done online. It was an horrible experience and a waste of time. I would not advice anyone to go through their interview

Bad interview process, waste of time. They are hiring in Europe remotely with contract and they provide a coding exercise in which they mention they expect you to work on it for an evening or so (4/6 hours?) and to keep it simple. They want you to implement a few routines with a gRPC library in Go presumably to see if you can do it and if you can write good code. Feedback from the exercise took longer to arrive than they claimed and the scoring system they used is looking for in depth knowledge and expertise of what you did in the exercise. They expect you to excel and write production level code that would take at least a day or two but they don't tell you that... Truly a waste of time on both sides... Based on their wording you'd expect to develop good code and write comments to explain how you'd scale the solution and what you would do different in production but then the feedback is "you didn't do it so you get penalised and we did not tell you that either..."