I applied online. The process took 3 weeks. I interviewed at TikTok (Seattle, WA) in May 2024
Interview
The interviewer did a brief introduction of himself and their team. Then there's two coding problems, using numpy to write some optimization for basic operations. During coding process, he would give some hints and debug with me. Afterwards he gave his solution on this.
Interview questions [1]
Question 1
Using numpy to write some optimization for basic operations.
I applied through an employee referral. I interviewed at TikTok (Singapore)
Interview
3 rounds technical interview, each 1 hour long
1st - Direct mentor (interview in chinese)
2nd - Direct team lead (interview in chinese)
3rd - Direct hiring manager (interview in english, based overseas)
It began with self-introduction and past projects. Then the interviewer asked a few questions about the project. Then ML coding test. For me it was CLIP at first. I wasn't able to do this, so the interviewer changed it to a naive CNN.
I applied online. I interviewed at TikTok (San Jose, CA) in Jan 2026
Interview
3 sum + ml skill and basic knowleage like ROC. Resume diving, looking for your understanding of the skills used before. interviewer is kind, 30 mintiues coding and 30 minutes about others