I was first assigned a data exercise. After that, I was invited for a phone interview, half HR and half technical. The HR part was standard enough, with a few weird comments about how I wasn't from a target school. During the technical part, I was repeatedly asked trivia questions about topics I didn't claim knowledge of on my resume, and a statistics brainteaser. Questions were poorly communicated, and after asking for clarification, the interviewer raised his voice at me so I ended the call.

I was found by a headhunter. No phone interviews, just the 3 hour coding test. I got everything right, according to their instruction, but was told insufficient. I'm very upset by their ways of judging your coding solutions because in the instruction they say they will evaluate your result by 1,2,3,4 rules. But even if you satisfy them, they still say insufficient. I have no idea how they judge, very very bad experience and such a waste of time.