First round is a managerial, to understand experience weather you are hands-on or not, role fitment. questions about projects from technical perspective.
second round is technical from a junior profile, more on hands-on type questions and discussion technology options in project
third round is technical from an experience, more about understanding projects worked and questions about how, why, why not and questions on Databricks performance improvements.
fourth round is with senior executive to understand more about role.