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 heard from both recruiter and data scientist within a week for the phone interview. As an experienced applicant most of conversation focused on previous experience although not directly applicable to the role i applied to. Came in for a half day of interviews at the NYC office. All were relatively casual, with a brief technical component for SQL and modeling methodologies, best practices, etc. Also had a probability question, but focus was more on understanding and setup vs mental math. Overall a very positive experience that reflected the open culture and dialog I've since experienced after joining!