The selection process started with a phone interview with the HR agent to clarify some basic things about my profile, fit with the role/company, salary expectations etc.
The second phase interview was a 60 min talk in loco with the with the head of the department (who was recruiting for the role) and the second in charge of the department.
The third round interview was a 90 min. talk with a case study presentation (which was sent for preparation a few days before) with the two interviewers from phase 2, the HR agent from phase 1, and person from another department who would be an importat stakeholder of the new role.