3 rounds: First is an HR phone call with OOD questions and coding questions Second is the technical interview with the senior SDE The third is the hiring manager interview for the harder technical questions and BQ

The first round is a 20 min hr phone screening about the basic qualification. The second round is a technical interview. The task is about string parsing and tree structure. The third round is also a technical interview about data science and machine learning, with no coding test in this round.