I applied through an employee referral. The process took 1 week. I interviewed at ByteDance (San Jose, CA) in Jan 2024
Interview
10 mins Resume + 35 mins case question. Resume has a LLM project so a question is about LLM halucination. Case question asks for a recommendation system to the vendors on Tiktok Shop.
Interview questions [1]
Question 1
A recommendation system to the vendors on Tiktok Shop
I applied online. I interviewed at ByteDance (Shanghái, Shanghai) in Dec 2025
Interview
First round technical interview with a senior member from the team, 45 mins equally divided into resume questions, 1 sql problem involving window function and ctes, and discussion around statistical concepts/scenarios.
HR reach out to me invite me to take a Data Scientist interview, and scheduel an interview for me. I only took one interview asking about project-related questions，and some questions about statistics, experimentation, and modeling，and one open-ended question.
Interview questions [1]
Question 1
How to estimate TikTok's daily advertising revenue without access to internal data?
Submitted application through referral link. Received recruiter phone screening within a few days. And then immediately asked for availability to schedule the 1st round technical interview with one of the team members.
Interview questions [1]
Question 1
Walk me through your resume and elaborate on what problems you solved with data and what metrics you used.
