I applied online. I interviewed at TikTok (Mountain View, CA) in Feb 2021
Interview
The first round was on Hackerrank . It had two questions 1) DSA 2) API design.
It followed by a live coding interview.
One question in one hour. The interviewer was really nice and helpful.
Interview questions [1]
Question 1
LC medium question. Time complexity was more than expected.
Binary tree question, really classic with a followup. Interview went smoothly and the atmosphere was good. I took this interview in January but unfortunately didn't get pass. Tiktok is still an excellent company!