TikTok Senior Software Engineer interview questions

introduce yourself, then do one leetcode-like problem, analyze time and space complexity. given some constraint, how would you improve the complexity. at last you can ask question to the interviewer.

Two coding rounds (Leetcode medium), one system design and then team match. For the every coding interview, first ten minutes were spent on resume based questions. Question1: Design LRU cache. Question2: Bird eye view of binary tree I failed the system design round - Design Rate limiter.