I was contacted by email through my university after the graduation.
First round: interview with HR, quite easy with basic questions only to understand your interests and motivation (30 minutes)
Second round: interview with a senior manager together with the account manager (almost 2 hours)
First of all, they give you a quick logical test. After the interview was really strange with specific questions about many academic courses that I have attended during the master.
The atmosphere was like an exam and the senior manager did everything to put a lot of pression e make me feel stress even if I was really clear and competent to answer. The questions was about a lot of topics not related to the job position (the manager also asked me, giving me a sheet and a pen, mathematical formulas on statistical distributions).
They also don't give you a feedback after the interview, even if they promise it for everyone.
They never told me something about the type of contract even after the second interview ( you don't know if is an internship or not). They are really unprofessional.