Phone screen with human resources, phone interview with consultant and senior principal, onsite with 7 people of all levels and a 30 minute presentation on a data-related topic followed by 15 minutes of --questions. Total process lasted two months--slower because of holidays, but not overly protracted.
Most interviewees did not seem excited to be there. Two appeared to make mocking eye-rolling gestures to one another over my lunch with them. Unprofessional.