Brian Liou
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Backend and distributed systems engineer. Cornell CS, Amazon, DoorDash.

Latest Project

I Built an AI System That Makes Timestamped Market Predictions

I Built an AI System That Makes Timestamped Market Predictions

Every analyst has an opinion on the market. Almost none of them timestamp it, track it, and publish whether they were right.

March 09, 2026 View project →

Latest Writing

System Design: Concepts, Patterns, Technologies

A scannable reference for system design interviews. Core concepts, common patterns, and key technologies with the tradeoffs that actually matter.

February 20, 2026 Read post →