I applied online. I interviewed at ByteDance (Shanghai, Shanghai) in Sep 2021
Interview
Campus recruitment. Three rounds of technical interviews and one optional round of HR interview depending on the business unit. Each round of tech interview took around 1 hour. There was no HR interview for the position I applied to.
Interview questions [1]
Question 1
Final round of tech interview:
1. Find the smallest palindrome number that is larger than a given n.
2. Why you study CS
3. Some other basic knowledge
4. Given an array of length n containing numbers from 1 to n, find the only duplicate value in the array.
5. Hash join
Live Coding for 30 minutes, ask about the project I did. You must be very good at coding to pass the live coding part. It's around leetcode medium level. The interviewer was nice and gave many advices on future career.
Describe the most complex backend project you have taken charge of in the past. What is the business peak QPS? What technical bottlenecks did you encounter and how did you optimize them?
The interview process was fairly standard. They asked about technical skills, projects, and tested coding abilities. Overall, the communication went smoothly.
The interviewer was guiding throughout the process, helped debug the coding questions, and offered ideas to move forward.
Interview questions [1]
Question 1
What’s the most complex or memorable online incident or piece of feedback you’ve experienced?