WorldQuant Quantitative Developer interview questions

I was noticed to have it at 930am one day. As soon as I start it, the interviewer keep saying my background does not fit BLA BLA, and trick me to say that I am looking for a quant research but not a developer. He said in the US, they only have developer position. And he thought I don't want to go to Asia for a researcher position. I am confused and pissed off. He just didn't want to interview me at all, but why sent me the email to set this up. Very unprofessional company. My worst experience. Its wasting both of our time.

Several Online Tests and followed by phone interviews. They are very nice responsive. The questions get harder as you level up. Most questions are tech based. Some behaviral questions too.