The interview process took extremely long and was badly planned. It consisted of three phone screen with the hiring manager and two other data scientists. It took weeks to move from a step to another. Even though, I solved all the riddles and addressed all the questions during the process, after three stages of interview, I didn't get an offer. I had the impression that they may had already filled the position or cancelled it. Overall, it wasn't a positive experience, the interviewers left somewhat of ambiguous impression of the company and didn't feel like people who was happy to be in the place they were.