systemdr roadmap

Learning system desing from scratch

How YouTube serves 2.49 billion users with a database most engineers learn in week one

May 28, 2026

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3 min read

How YouTube serves 2.49 billion users with a database most engineers learn in week one

systemdr roadmap

Stripe processes millions of payments a day — here's how they guarantee you're never charged twice

May 26, 2026

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3 min read

Stripe processes millions of payments a day — here's how they guarantee you're never charged twice

systemdr roadmap

How Uber finds the closest driver to you in under 100 milliseconds across an entire city

May 24, 2026

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4 min read

How Uber finds the closest driver to you in under 100 milliseconds across an entire city

systemdr roadmap

Why a video in Mumbai loads from a server 3km away — not one in California

May 22, 2026

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4 min read

Why a video in Mumbai loads from a server 3km away — not one in California

systemdr roadmap

The buffer that stops your app from collapsing when 10,000 things happen at once

May 20, 2026

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4 min read

The buffer that stops your app from collapsing when 10,000 things happen at once

systemdr roadmap

The architecture that lets Netflix deploy 1,000 times a day without breaking anything

May 18, 2026

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3 min read

The architecture that lets Netflix deploy 1,000 times a day without breaking anything

systemdr roadmap

One server breaks under pressure — here's how a thousand servers act like one

May 16, 2026

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4 min read

One server breaks under pressure — here's how a thousand servers act like one

systemdr roadmap

Every byte you send travels through strangers' machines — here's what stops them reading it

May 14, 2026

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4 min read

Every byte you send travels through strangers' machines — here's what stops them reading it

systemdr roadmap

The wristband that proves who you are on every request — without asking the server to remember you

May 12, 2026

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3 min read

The wristband that proves who you are on every request — without asking the server to remember you

systemdr roadmap

The simplest database in existence — and why it powers the fastest systems on earth

May 11, 2026

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4 min read

The simplest database in existence — and why it powers the fastest systems on earth

systemdr roadmap

The trick that makes a 200ms database call feel like it never happened

May 10, 2026

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3 min read

The trick that makes a 200ms database call feel like it never happened

systemdr roadmap

Choosing the wrong database type is the mistake that haunts you at 10 million users

May 9, 2026

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3 min read

Choosing the wrong database type is the mistake that haunts you at 10 million users

systemdr roadmap

Every app is just a database with a pretty face on top

May 8, 2026

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3 min read

Every app is just a database with a pretty face on top

systemdr roadmap

Your password never touches the database — here's what gets stored instead

May 7, 2026

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3 min read

Your password never touches the database — here's what gets stored instead

systemdr roadmap

The contract that lets every app on earth talk to every other app

May 6, 2026

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3 min read

The contract that lets every app on earth talk to every other app

systemdr roadmap

Your browser asks for directions before loading any page — this is who gives them

May 5, 2026

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3 min read

Your browser asks for directions before loading any page — this is who gives them

systemdr roadmap

The always-on computer that makes every app in the world possible

May 5, 2026

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2 min read

The always-on computer that makes every app in the world possible

systemdr roadmap

systemdr roadmap

How YouTube serves 2.49 billion users with a database most engineers learn in week one

Stripe processes millions of payments a day — here's how they guarantee you're never charged twice

How Uber finds the closest driver to you in under 100 milliseconds across an entire city

Why a video in Mumbai loads from a server 3km away — not one in California

The buffer that stops your app from collapsing when 10,000 things happen at once

The architecture that lets Netflix deploy 1,000 times a day without breaking anything

One server breaks under pressure — here's how a thousand servers act like one

Every byte you send travels through strangers' machines — here's what stops them reading it

The wristband that proves who you are on every request — without asking the server to remember you

The simplest database in existence — and why it powers the fastest systems on earth

The trick that makes a 200ms database call feel like it never happened

Choosing the wrong database type is the mistake that haunts you at 10 million users

Every app is just a database with a pretty face on top

Your password never touches the database — here's what gets stored instead

The contract that lets every app on earth talk to every other app

Your browser asks for directions before loading any page — this is who gives them

The always-on computer that makes every app in the world possible

Learning System Design

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