Look out for any employees to refer you. Referrals receive more attention. The first call would be with HR to discuss salary expectations and to know a bit about you. The technical round involves a take-home assignment, and the subsequent interview involves questioning your approach regarding the assignment (any known bugs/ better approaches). The third would be purely managerial to understand your working style and your preferences. The fourth round would be with CDO, this is just to know about you and your fit with the company. the interview process ends with being interviewed by the CEO to identify if you are an cultural fit to the company or not.