On site interview: technical written test. I was asked to write some SQL queries, a Junit test to test a provided class and a few Bash questions. It was followed by another hour with two engineers member of the team, It was sort of a repetition of the previous written test, plus more questions on Python. I was also asked to solve a few simple programming problems, like reverse a list and similar. The third interview was with a member of HR, he asked those classic questions, like were do you expext to be in 5 years time, what is success to you and how I ever dealt with a conflict with team members. The last interview is with the managers, it is quite relaxed and does not go too deep into technical details.