I applied through university. I interviewed at TikTok in Dec 2020
Interview
OA has four hard coding problems, and the time allowed is two hours. I got contacted soon by HR to schedule an interview. The interviewer seems to be only interested in people who were CS majors, so I did not get a chance. That is why he did not even bother to give me a hard coding problem.
Interview questions [1]
Question 1
An easy DFS/BFS coding problem, have to write test cases myself
three rounds, each has coding + ml basic + resume related questions
understand all the details in resume is important, since might go very deep down the project you have worked on
The first round was mainly a CV walkthrough.
The second round focused in depth on one specific project.
Both rounds also included LeetCode medium-level problems.
The third round was with the hiring manager with both project and problems for their business.
I applied through a recruiter. The process took 1 week. I interviewed at TikTok (San Jose, CA) in Mar 2026
Interview
one hour first round tiktok usds phone screen interview. past projects questions, leetcode mid questions, and machine learning, deep learning, large language model questions. And then ask the interviewer questions.