Firstly round a coding-challenge. You get enough time. Second round is an interview with tech team and HR. Takes around 1-1.5 hrs. Goes through Cultural and technical aspects. Third round Meeting the Director.

For me, this was a humiliating experience, and disrespectful of my time. The process focused on a tedious and obscure home coding task. The contact person bluntly refused to clarify requirement, which could have saved hours of unpaid work (I didn't ask for for coding hints, just a plain yes/no response on whether to cover this and that edge cases). For two days of work, I was "rewarded" with a humiliating one-line email "Hi, your code was sub-standard, regards". I don't believe it could have been that bad, as I've worked in Big Tech companies and left with good references. My submission included industry standards such as unit tests, clean coding, design patterns, asynchronous calls when appropriate etc. Even if they expected more, they could have shared more constructive criticism.