FAANG System Design Mock Interview

In this mock interview, I will present real-world system design challenges that mirror the ones I use in actual system design interviews at top-tier companies like FAANG. You’ll tackle system design questions such as building a distributed messaging system, designing a social media application, or architecting a rate-limiting service for high-throughput APIs. These are based on my professional experience and reflect realistic interview scenarios. I will provide strategic hints to guide your thought process, helping you identify trade-offs and make sound design decisions. I’ll share my evaluation criteria, offering clarity on what distinguishes junior, mid-level, and senior engineers in system design interviews. You’ll receive a thorough debrief on your performance, highlighting your strengths and pinpointing areas for improvement. This includes insights into common pitfalls and actionable advice to elevate your approach.