24 System Design Case Studies — 4-Week Plan
Source: LinkedIn post by Neo Kim Newsletter: systemdesign.one (200K+ engineers)
The 24 Case Studies
| # | Case Study | Company |
|---|---|---|
| 1 | How Uber Computes ETA | Uber |
| 2 | How Amazon S3 Works | Amazon |
| 3 | Cloudflare 55M RPS with 15 Postgres Clusters | Cloudflare |
| 4 | How Slack Works | Slack |
| 5 | How YouTube Works | YouTube |
| 6 | Stripe Idempotent API | Stripe |
| 7 | How Tinder Works | Tinder |
| 8 | How Zoom Works | Zoom |
| 9 | How Meta Serverless Works | Meta |
| 10 | PayPal — 1B Transactions/Day on 8 VMs | PayPal |
| 11 | How Google Search Works | |
| 12 | How WhatsApp Works | |
| 13 | How Airbnb Works | Airbnb |
| 14 | How Spotify Works | Spotify |
| 15 | How Reddit Works | |
| 16 | How Bluesky Works | Bluesky |
| 17 | How Twitter Timeline Works | |
| 18 | How Netflix Works | Netflix |
| 19 | Top Redis Use Cases | Redis |
| 20 | Figma Scaled to 4M Users | Figma |
| 21 | How OpenAI ChatGPT Works | OpenAI |
| 22 | Instagram Scaled to 2.5B Users | |
| 23 | How Lyft Works | Lyft |
| 24 | How Apple AirTags Work | Apple |
The Approach
One case study per day → covers the full landscape in 4 weeks.
Free Resources
- System Design Playbook — free newsletter with 200K+ engineers
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By Neo Kim — nk.systemdesign.one. Follow for system design content.