First round was an online interview with department head and HR.
Second round was a psych eval and psych/IQ test.
Third/fourth round was a Python test and a talk with the team head and HR.
Fourth was an offer.
I would like to add that I didn't know Python and didn't take the test at first.
Later I learned it and contacted dSpace about it. They messaged me at first job opening and then I took the test.
Very accommodating and everything/everyone was extremely pleasant.