TikTok Machine Learning Engineer interview questions

Application & Recruiter Screen Format: 30–45 min phone or video call Focus: Your background, motivation for TikTok, “Always Day 1” culture fit, plus 1–2 high‐level ML questions (e.g., supervised vs. unsupervised learning, evaluation metrics) 2. Technical Online Assessment Format: Coding problems (LeetCode-medium) + ML fundamentals quiz Focus: Data structures & algorithms under time pressure, plus short ML/system design questions on feature engineering, model evaluation, etc. 3. Deep‐Dive Technical Round Duration: ~60 min Focus: Advanced ML algorithms and mathematical foundations (e.g., collaborative filtering, neural nets, bias–variance trade-off), often with follow-up on your past projects