Applied through graduate school. A few weeks later, had a phone screening then an invite for an in-person.
The in-person interview was a 'superday' format, with about a dozen people from their finance and accounting programs. They interviewees were divided into two groups. One group rotated through 2 on 1 interviews, while the rest had a case study. The case study was filled out individually before each person on the team met to discuss optimal outcomes and draft a powerpoint slide.
The interviewers seemed less qualified than the applicants and had a variety of personalities. Some were great, others seemed like they were born in a log cabin- not impressive.