Recruiter screening and then online technical around and then personality round. Was told they extended an offer to someone else after that round. Didn't score perfectly on the technical but still made it through.

I was reached out for an initial HR interview. Afterwards was another interview with HR. After passing those it's on to the final interviews. This part is 5 interviews without a break between any of them. It is basic leetcode/system design questions along with some meetings with HR. Communication is horrendous. AQR doesn't get back to you for weeks after an interview, you need to constantly email them for an update. Don't waste your time, the 7 interviews I had took over 2 months, and I didn't get a rejection until I contacted them a month after my final interview.