Ai Infrastructure in System Design

2 in-depth guides covering how ai infrastructure is used in real system design interviews. Learn when to use it, its trade-offs, and how to discuss it with confidence at companies like OpenAI, Google, Meta.

Sep 8, 2026•35 min

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...

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Aug 1, 2026•30 min

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...

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Go Beyond Reading About Ai Infrastructure

Ai Infrastructure concepts show up across many system design interviews. Practice applying them in full interview simulations and get actionable feedback.

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Related Technologies

Distributed Systems Rate Limiter Caching

Companies That Test Ai Infrastructure

Amazon Anthropic Google Meta Microsoft Notion OpenAI Stripe