TikTok Network Engineer interview experience

I remember thinking that some parts were straightforward, but then the questions shifted toward system design, and that’s where it got real. The interviewer pushed the conversation toward network systems broadly—how protocols work, how you troubleshoot issues, and how redundancy is designed.

It felt like I needed to pull together multiple threads at once: protocol-level knowledge, practical debugging intuition, and a solid grasp of how to architect reliable components. Compared to typical algorithmic screens, this was more about whether I could reason through system behavior and