The process could be a bit more transparent. Cause it was supposed to be 3 steps, but I guess that the real deal is 5 steps.
1st First step is the screening (Very good interview)
2st First Technical interview, which is coding (Also very interesting)
3rd You speak with HR leaders and later you have another Second Technical part with an engineer
(For me this step they could cover the second HR in the screening)
4th Which is the Third technical interview. It's a whiteboard with system design or can be a case study. (I guess that was the final technical interview, which was very good)
If you're in the process, they are not transparent, you can expect everything from the technical interviews, so it's kinda hard to prepare. For an example in the 3rd interview I wasn't expecting, it was supposed to give feedback, so I got caught in the undertow. But I managed to pass.
The last technical interview, they say that there is a live coding, which is like a BAR. Then you go to the technical interview. I managed to pass the bar, cause I did the case study and also the interviewer said that the bar was enough. Later I asked the Engineer and his answers were similar to mine. Two days after I received the rejection, they didn't provide any feedback, which I think that is bad for a person who went to the final interview after 2 technical interviews and invested 1 month already. I guess that my bar was not enough, and another person went better. (I'll never know)
The whole evaluation of the process: If they provide feedback to the candidates who manage to go to the final interview then it would be positive.
Process needs more transparency. (negative point)
Positive side, people that I interviewed. Final technical the Engineer guided the interview very well. (positive point)
Other: The process moves fast, if you're employed you'll be a bit overwhelmed. (neutral)
Another point is that they say that they are language agnostic, but it's preferred for you to do in the language which the job was posted, my case was TS. For an example in the second round which was some code analysis I used Python and Java.
My honest take, if you're studying for interviews and focusing on, it's pretty manageable to pass and I'm a very standard engineer.
The people that I've meet was really good during the process and I liked them and how the company works.