First stage as screening, via a online quiz. Mostly focused on academic credentials. Second stage was a practical exam, online. It comprised some models (regression, clustering and classification - all based on syntethic data) and questions about the models and some theory. After that, I was contacted by a technical interviewer which reviewed my answers to the exam, asking for details on how I've arrived to the conclusions and giving some practical advice on how to improve on that specific topic. After that, a video conference was scheduled with the hiring managers, so they could know me better. Sometime after this call, I was contacted with a job proposal.