Citadel NXT Final Round Interview

I have a Citadel NXT final round coming up. Recruiter said that every interview will be a mix of both coding and system design(in the same interview) Does anyone have any idea of what I should expect, especially around system design. What kind of system design can they ask in a 1 hour interview where some of it will be spent on coding?#engineering #citadel #swe

TC: 250K, 4yoe