WorldQuant interview questions

(This is about office in Moscow) I found WorldQuant company through the recruiter agent. After the agent sent them my resume it took three week to review it. Agent told me that the company is interested and they will call me to decide the time for an interview. And then the person from WorldQuant with who my agent spoke disappeared. I never got a phone call. And they never replied to the emails from my agent. Ok, I understand the policy to contact only short listed candidates. But in this situation, when they were initially interested, but then stopped all communication is just plain weird and even offensive. At least I want to know why they changed their minds. I hope things like this happen only in Moscow office.

The WorldQuant is moving their research group from NYC to some Asian developing countries where they found people there can work out high performance with relevant low human cost. Let us talk about the hiring process. They collected the resumes and sent invitations to some people they interested in for Round 1 paper test. They will get in touch with the people they are willing to move forward. After this it is several rounds of telephone interviews, all brain teasers or classical probability problems. And finally you met with a senior manager as the AC part. Good luck to you guys.