A video call with the recruiter, then a technical interview with the hiring manager. I did not make it beyond that point. Two days later I got an email from the recruiter saying that they want to move forward with other candidates.

One thing that bothered me a little is that both interviews were done over video. I am not too opinionated about such things, but I think it creates unconscious bias.

The interview with the hiring manager was unusually long for the stage. I talked to him for over an hour and a half. I was given a shared document online to write code and such.

I listed Python and c as skills in my resume so the first two questions were related to that. First one was a simple data structure manipulation in Python. Second one was harder - I was asked to write a c macro manipulating some pointers. C macros were never really my strong suit, but I came up with a solution after some effort and hints.

The final problem was a design challenge around concurrency. I had to design a cache. But fetching from origin takes some time, and the most important requirement was to not issue two concurrent fetches for the same resource.