roblox | Software Engineer | Interview Experience
Interview Date: Not specified
Result: Not specified
Difficulty: Not specified
Interview Process
The interview consisted of a technical phone interview focusing on a rate limiter implementation question. The interviewer asked how to design a rate limiter that could handle bursts of requests while preventing abuse. The discussion involved designing an algorithm to limit the number of requests per user, exploring strategies like the token bucket and leaky bucket algorithms. Considerations for edge cases and potential scaling issues were also addressed.
After the design discussion, I implemented a basic version of the rate limiter in Python, going through testing to ensure it handled multiple users correctly and observed the limits set. The interviewer inquired about potential improvements and alternate approaches, including distributed rate limiting for a microservices architecture.
Technical Questions
- Rate Limiter Implementation (Design)
Tips & Insights
Overall, it was a challenging yet rewarding experience, with a depth of questions that tested my understanding of the topic.