Render Software Engineer Interview Experience — Traffic Analysis and Rate Limiting

A Render phone-screen report describes an incident-response exercise framed around an API denial-of-service scenario. The candidate receives three log files and must identify the five source IP addresses responsible for the most requests across the collection. A follow-up asks how to limit request rates.

The supplied examples mix HTTP request records with background-job and other service messages. Request records include network endpoints, response details, and timing information, so the task requires extracting relevant traffic information from broader operational logs. The report supplies the exercise and sample data but does not describe the candidate’s implementation, interviewer feedback, or interview outcome.