Cracking Roblox's Software Engineer Interview: Mastering the Rate Limiter Challenge

Roblox | Software Engineer | Interview Experience

Interview Date: Not specified
Result: Not specified
Difficulty: Not specified

Interview Process

I went through the technical phone screen for Roblox with a software engineer. The interview was broken down into two main parts: coding and behavioral. In the coding part, I was asked to implement a rate limiter.

The interviewer provided a scenario where we needed to limit the number of requests a user can make to an API within a given time frame. This required implementing a data structure that can track the requests made by a user and determine if their new request should be allowed based on the time limits set.

After discussing the requirements, I started coding. The interviewer asked probing questions throughout to ensure I was considering edge cases and performance impacts.

For the behavioral part, I was asked about my experience with team projects and how I handle conflicts in a team environment. Overall, it was a good balance of technical and soft skills assessment which I appreciate.

Technical Questions

  1. Rate Limiter (Design)

Tips & Insights

Be prepared to discuss both technical implementations and your soft skills, as both are important in the assessment process.