Hackerrank test screener, seemed a healthy balance of easy/slightly difficult questions. Great as a screener.
Afterwards I was invited to a wordpair session on Hackerrank. There was a snaffu regarding the phonecall, but after that was sorted out, we went to a session where a few quiz questions were thrown out there followed by the code session. quiz questions were basic (tcpvudp, multithreaded experience, etc.)
Now here is why I am writing this review - I had a very rude and arrogant interviewer. In addition to citing things that were wrong (that really weren't) he had an affinity towards ignoring approach and the caveats I would say. Very absolutist in how you are wrong. For example, why use a struct vs. a class? Well I'm in an interview session, I want to make it quick and dirty. It was overall a terrible experience and I know it was a way for someone to feel good about themselves (the interviewer).
I'm genuinely disappointed because everything I read spoke towards the company being a solid employer.