Tech Presentation Interview The tech presentation round is a reverse system design : instead of designing a hypothetical system on a whiteboard, you present a real system YOU built. This tests three things no other round can: genuine depth of understanding, ability to communicate complex ideas under pressure, and authentic ownership versus inherited knowledge. When to Use Use for: - Selecting which project to present from your career - Structuring a 25-45 minute technical presentation with narrative arc - Calibrating depth -- which components to go deep on, which to skim - Preparing whiteboar…