I applied through an employee referral. I interviewed at TikTok (San Jose, CA) in Apr 2025
Interview
Interviewed for 2025 summer.
2 rounds + HR + additional 4th round, failed in the last round. First round: talk about a data project + follow-up questions about model choices, one easy SQL, one product question. The second and fourth rounds were all product-based, asked about how to construct an A/B test and what metrics to use.
30 min virtual one-on-one technical interview with a medium-level SQL question and general data science/ML questions with a member of the hiring team. Did not have a phone interview first
Interview questions [1]
Question 1
How would you determine if a new feature actually improves revenue?
3 rounds of interview with hiring manager, director and human resources. Includes deep dive questions about your resume, SQL coding, follow up case study questions based on your background and a little bit of behavioral questions.
I applied through college or university. I interviewed at TikTok
Interview
OA + Machine learning OA + Technical + Business round
Pretty fast and smooth, questions asked are professional and straight into business. The interview results was also given within 2 days after the final round.
Interview questions [1]
Question 1
How do you do video clustering algorithm (unsupervised learning scenario)