3 steps over a course of 3 months - HR screen, interview with hiring manager, and finally a 2hr full-blown real business case presentation to department panel, immediately followed by a stakeholder panel interview
After reading through most interview experiences, this appears to be the MO for the hiring process. It reinforces the notion that potential candidates are doing and solving business challenges as assignments for free in the hopes of joining the team
The job description also kept changing over the course of the weeks/months