First they started with Introduction, Then asked me to explain Project description, architecture and my role in the project. followed by Logical problem solving questions on spark and few questions on apache kafka.

1st round was online assessment on big data technologies .After clearing that technical round with client and then 2 rounds one for SQL and for one data engineering. Then final CTO round that too was a technical round ( Thought it would be some managerial kind ). I cleared them all but didn't revived any response from them . I felt it was just a waste of time for attending 5 rounds.