It started well, people were nice until they stopped responding.

So I was firstly interviewed by a recruiter, who asked some standard questions about my background and current position then finished asking a couple of simple technical questions.

After that they moved me to a conversation with the hiring manager. The guy was nice and clear on his communication, we talked for about 1 hour... mostly on coming up with a technical architecture solution for a given scenario.

The interview went well, we seemed happy with my answers although I could have gone deeper on some answers but I mentioned the direction I would go but that it would take some research/reading before taking a more definite decision on the architecture...

And then... that was it. Never heard from them again. Unreal... I even asked the hiring manager at the end of our chat: "When should I expect to hear a feedback from our interview here today?" he said promptly: "Ah that's very fast, maximum by the middle of the week" (it was a Monday).

So a couple of "middle of the weeks" went by, I sent a message to the recruiter asking for a feedback and they didn't even bother to respond.

Thank you so much for the consideration... based on that I just cannot recommend anyone to spend their time going through Circle's interview process.

To come up with the architecture for a given application, it needs to be able to scale to millions of users.