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 online. The process took 4 weeks. I interviewed at TikTok in Feb 2026
Interview
HR reached out through emails but would never answer questions prior to the interviews. Two 1-hour technical interviews: the first covered coding and a resume deep dive, and the second focused on ML system design. One interviewer was very rude.
The interview process was nice they were accommodating of my situation as an intern and let me postpone the interview until it had concluded. Interviewer was nice and answered my questions.
3 rounds, first technical screen ML where they ask some ML related questions, then coding question around leet code medium, then a design round with team lead which is quite dificult, leetcode hard.