Interview experiences · Roblox
Roblox Software Engineer Interview Experience — A Shared To-Do List Design and a Kafka Mistake
RejectedTech screenInterviewed 2026-08
The system design question was the shared to-do list problem from the question bank. Unfortunately, I had not had time to prepare for it. This was also my first system design interview, so I did not perform very well. I made one critical mistake by adding a Kafka queue. That made the system asynchronous and would affect the speed of the synchronous flow. The interviewer still interacted with me t…
The system design question was the shared to-do list problem from the question bank. Unfortunately, I had not had time to prepare for it. This was also my first system design interview, so I did not perform very well.
I made one critical mistake by adding a Kafka queue. That made the system asynchronous and would affect the speed of the synchronous flow. The interviewer still interacted with me throughout the session and had a very good attitude. A few days after the interview, I received a rejection email.
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