4 interviews for first round and they will decide on overall opinion. Questions were mostly on options delta, a bit of stochastic calc. C++ questions since it was on my resume. Make sure to be prepped for everything on the resume.

2 rounds previous to the onsite round, with 3 interviewer asking different part of knowledge including derivative pricing, python/C++ programing, data structures and machine learning. The final round is intensive lasting for 2 hours at least. The people in the team are very helpful.