1. algorithm coding, print the right side of a binary tree
2. short url system design, change the long url to short url, questions about short url generation, how to redirect, how to recycle invalid url.
3. project experience questions
Other Senior Software Engineer interview reviews for ByteDance
I applied online. The process took 1 week. I interviewed at ByteDance (Shanghai, Shanghai) in Dec 2025
Interview
It's terrible. And all interviewers are Karen.
I don't know why they decided to have an interview with me, on that they don't ever see my experience and skills. They only ask some general questions and general LeetCode problems. Then failed. It's a totally time-wasting process
Interview questions [1]
Question 1
get the longest unrepeated substring of the parent string
I applied through a recruiter. The process took 1 day. I interviewed at ByteDance (Shenzhen, Guangdong) in Jul 2025
Interview
Quite professional, will ask you some deep-thinking questions based on your experience. Like how can you improve your current system efficiency in different angles. Also a leetcode solution will be required at the interview, it is usually medium level.
Interview questions [1]
Question 1
How you can improve your system throughput on the technical level?
* Development skill. In the online program, developing a program to solve an algorithm problem.
* Architecture skill and design a system to solve a problem.
* What problems have you encountered in the past? How did you solve them?
Interview questions [1]
Question 1
In the online program, developing a program to solve an algorithm problem.