Bain Interview Experience?

Hi, I just scheduled for Backend AI Application Developer role It’s within Bain’s Advanced Analytics Group. Recruiter mentioned there will be about 5 rounds 1. Leetcode round 2. Data Analysis round 3. System Design 4. General 45 mins discussion 5. Closing round with a Partner (understanding vision etc) Can anyone help me with what’s asked in their Leetcode? How is data analysis? Sys design? Thanks Tc - 150k#interview