I applied online. I interviewed at TikTok in Nov 2021
Difficult interview
Application
I applied online. The process took 4 weeks. I interviewed at TikTok
Interview
I had to make a 3 days project that took me over 24h of work in the first stage.
After that, I got to a phone interview that was done by 2 Chinese people where one of them did not speak English and would talk to each other all interviews. They kept asking about Graphics programming when I never stated on any point that I knew about it.
After that, I had a coding question that was not hard but the interviewer had no interest in continuing my interview and kept asking me if he could just finish the interview.
Two 30 minute techincal interviews, no online assessment. Surprised to see AR-specific questions about convolutions and computing a homography. The interview was both coding and white board. No data structures or algo questions.
A 15 minutes Zoom call. Then follow by multiple rounds of technical interviews. Only get to the first round. The technical interview takes about an hour with 1-2 coding questions.