I applied online. I interviewed at ByteDance (Los Angeles, CA) in Nov 2020
Interview
The first round is an online assessment. It has four coding problems. I feel like it's a little difficult for most data scientist positions. Especially for the last one, it belongs to the hard level of leetcode.
Interview questions [1]
Question 1
The first one is very easy. The second one is about statistics. The last two are about algorithms.
I applied online. I interviewed at ByteDance (Shanghai, 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.
