Applied for a position on their careers page, and was sent an invitation for two rounds, one being coding and the other being system design. The coding one was pretty straightforward and I was able to complete it way before the time limit. The other was a system design interview, which I felt was taken by an engineer who didn't have much knowledge on the subject and looked like he was a fresher having less experience than me. Overall, he wasn't asking questions that made sense and wasn't very clear on what he was trying to say.

Write high-level design to implement TikTok's feed.