My situation was peculiar in the particular manner I was plucked out of grad school. But when it came time to actually interview for a specific job, the interview was not unnecessarily fraught or stressful, I didn't feel like anyone was trying to stump me for the sake of it and the interviewer did a good job of clarifying my specific skill set without presenting the job as a narrow series of tasks.

Standard case interview, easily google-able online. Be structured and speak clearly/slowly. Like any other consulting interview, they want to see how you think. It's about the journey, not destination. Be prepared with STAR method questions for the behavioral interviews.