I applied through a recruiter. The process took 3 months. I interviewed at data.ai (Utrecht) in Mar 2017
Interview
An initial screening by phone, with HR.
A second interview with the UX/UI Team Lead
A Case study (I had a week to prepare it) that I had to present in front of HR, the UA Lead, the Mobile Marketing Manager and the Product Director, followed by some drinks with the rest of the company.
Interview questions [1]
Question 1
They asked me to play with some data and bring conclusions to the table.