Rejected After a TikTok Trust & Safety System Design Round on a Video Moderation Pipeline

Interviewed in June. Second round: system design interview, 1 hour. Project deep-dive (about 20 minutes). System Design — Video Content Moderation System Question: design a simplified video content moderation system. The interviewer scoped it very clearly: I didn't need to design the video upload part — assume there's already a system that pushes uploaded videos to you. What I needed to design wa…

Shared by a candidate · reported Sep 2026. Interview formats change; use it as a guide, not a script.