First, there was a one-hour online coding interview, then a phone call with a recruiter. There were two coding questions, relatively easy and common ones. In the phone call, recruiter normally asks about background, future plans, vision, technical skills, work authorization, etc.

Online Assessment -> Phone Screening -> Technical Round 1 -> Technical Round 2 + Math Interview Online Assessment was basic coding questions. Technical round 1 was very fundamental DSP and ML (Neural Nets, Fourier Transform, Convolution Theorem) NDA for last 2 rounds