First interview, about thirty minutes, asked a dozen questions, half of which were for the project on the CV. Medium difficulty. Mainly examine the basic skills. Friendly interviewer, very polite, no guidance.
Interview questions [1]
Question 1
What is the difference between String StringBuffer StringBulider and StringBuffer in Java?
Describe the Redis single-threaded model and IO multiplexing.
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?