3 tiered interview, website describes it pretty well. First 2 parts were online, last part was a multi-stage interview with a part where I gave a presentation on a topic I have done previous work in.

Interview process was perfect as you were able to talk to people with diverse professional backgrounds. The reflection process after each interview/talk gave you a great opportunity to evaluate yourself if this company is a fit for your background and future career growth. Had a great time talking to at least 10 people from different offices and learned their opinions on what to/not to expect regarding the culture, value, and even daily life. The only thing that could be improved is the timeline, as it took me almost three months to finish all three tiers of interviews, but again, still a very rewarding process.