The System Design and AI Brief for Engineers

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🍔🧠 How DoorDash Uses LLMs To Predict 10M+ Customer Grocery Lists

Oct 6, 2025

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11 min read

Weekly Digest

🍔🧠 How Dropbox Built AI Search Using RAG and AI Agent Techniques

Sep 8, 2025

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11 min read

Weekly Digest

🍔🧠 How Uber Eats Handles 2B+ Search Queries Daily (Full Architecture)

Jun 2, 2025

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12 min read

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🍔🧠 How Pinterest Reduced Clickbait With Just 5K Survey Responses

PLUS: OpenAI Is In Code Red 🚨, Deep Dive Into Distributed Systems 🌐, Netflix's Write-Ahead Log Architecture 📝

Dec 8, 2025

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11 min read

🍔🧠 Lyft ran 1000s of ML jobs on Kubernetes. Then they stopped.

PLUS: Twitter System Design 🐦, GraphQL Migration Blueprint 🗺️, OpenAI's Secret Hardware 🔮

Dec 1, 2025

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11 min read

🍔🧠 How Uber Predicts Driver Earnings Using Deep Probabilistic Models

PLUS: How Stock Exchanges Work 🏛️, Tinder's Architecture 🔥, JWT From 0 To Hero 🎓

Nov 24, 2025

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11 min read

🍔🧠 How Datadog Ingests Billions/Sec With Their Unique Database Design

PLUS: Postgres Scaling 101 💾, Frontend Design Principles 🎨, Meta's AI Chief Leaves 🤯

Nov 17, 2025

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11 min read

🍔🧠 1,500 PRs: Spotify's Autonomous Coding Agent (Full Architecture)

PLUS: ML at Netflix Revealed 🎬, Rust Rewrite Saves $300K ⚡, URL As Application State 🔗

Nov 10, 2025

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11 min read

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The System Design and AI Brief for Engineers

Trusted by 50,001+ engineers at Meta, Uber, Amazon, and more

🍔🧠 How DoorDash Uses LLMs To Predict 10M+ Customer Grocery Lists

🍔🧠 How Dropbox Built AI Search Using RAG and AI Agent Techniques

🍔🧠 How Uber Eats Handles 2B+ Search Queries Daily (Full Architecture)

Weekly Digest

🍔🧠 How Pinterest Reduced Clickbait With Just 5K Survey Responses

🍔🧠 Lyft ran 1000s of ML jobs on Kubernetes. Then they stopped.

🍔🧠 How Uber Predicts Driver Earnings Using Deep Probabilistic Models

🍔🧠 How Datadog Ingests Billions/Sec With Their Unique Database Design

🍔🧠 1,500 PRs: Spotify's Autonomous Coding Agent (Full Architecture)

Hungry Minds 🍔🧠