The System Design Newsletter

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Get Better With System Design in 2025 🔥

Get Better With System Design in 2025 🔥

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Neo Kim
Jan 13, 2025
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August 2023 - Ko Samui, Thailand.

I went there on a family vacation and was lucky to stay at an extremely beautiful place.

But I couldn’t write long-form system design articles on my website as the internet and power at my place weren’t reliable.

So I decided to start this newsletter with short-form content and published the first article without a real plan.

Now I need your feedback, so I can help you better.

system design newsletter

1. Level Up Your Career

Let me understand what to focus on in 2025.

(Survey closed.)


2. Share Your Feedback

Let me understand how this newsletter helped you last year.

(Survey closed.)


This newsletter has grown to 118,000 subscribers, and I want to make it more valuable to you.

Thanks,

Neo Kim


Author Neo Kim; System design case studies
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By Neo Kim · Launched 2 years ago
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Discussion about this post

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8 Reasons Why WhatsApp Was Able to Support 50 Billion Messages a Day With Only 32 Engineers
#1: Learn More - Awesome WhatsApp Engineering (6 minutes)
Aug 27, 2023 â€¢ 
Neo Kim
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The System Design Newsletter
8 Reasons Why WhatsApp Was Able to Support 50 Billion Messages a Day With Only 32 Engineers
25
How PayPal Was Able to Support a Billion Transactions per Day With Only 8 Virtual Machines
#30: Learn More - Awesome PayPal Engineering (4 minutes)
Dec 26, 2023 â€¢ 
Neo Kim
262

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The System Design Newsletter
How PayPal Was Able to Support a Billion Transactions per Day With Only 8 Virtual Machines
14
How Stripe Prevents Double Payment Using Idempotent API
#45: A Simple Introduction to Idempotent API (4 minutes)
May 9, 2024 â€¢ 
Neo Kim
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How Stripe Prevents Double Payment Using Idempotent API
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