There were 3 phone interviews - one with a recruiter, one with a data scientist(this one was technical with shared coding + algorithm type questions) and then another with a manager. Then I was given a project to complete at home. After completing the project I was invited for in in-person interview with 6 or so people. 90% of it was whiteboarding and/or going through the take-home project. They were all about keeping in touch after the in-person...kept contacting me by phone and email to let me know that they were still interviewing but really liked me, wanted me to know I was still in the running...and then after 1-2 weeks of that finally they said they needed to push back hiring for this position until the next quarter.

Applied online and got a technical test within a day followed by two phone interviews the following week - one with a recruiter and one with a Data Scientist. The in person interviews lasted about half a day with a lot of whiteboarding of Python, SQL, and somewhat challenging stats/probability questions. Most interviewers were very friendly (some were a bit arrogant in their questioning - probably not the best picks to conduct interviews). Didn't hear back from them for 4 weeks until constant calling and emailing finally produced the automated "we have moved on with other candidates" email. Not very professional.