Blog
System Design at OpenAI
System Design at OpenAI
OpenAI asks system design questions targeting distributed systems, scalable architectures, and platform engineering. Preparing with the specific types of problems they focus on gives you a significant advantage in your interview.
2 guides available•Interview focus: System design, distributed systems, and scalable architecture.
OpenAI System Design Interview Guides
Sep 8, 2026•35 min•
senior
RAG System Design Interview Guide: Design an AI Assistant Over Internal Documents
RAG system design is now a standard question in senior interview loops, and most candidates answer it as a pipeline diagram instead of a system. This guide walk...
Aug 1, 2026•30 min•
senior
LLM Gateway System Design Interview Guide: Token-Aware Rate Limiting, Routing & Semantic Caching
LLM gateway system design asks you to rate limit by tokens, not requests — and a response's token count isn't known until it finishes streaming. Covers token-aw...
Ready for Your OpenAI Interview?
You've read the guides — now practice delivering these answers under time pressure. Get AI-powered feedback on system design questions commonly asked at OpenAI.
Free tier available • AI-powered feedback • No credit card required
Explore Other Companies
Engineers who interview at OpenAI also prepare for these companies: