The System Design Newsletter
Weekly newsletter to help busy software engineers become good at work
By Neo Kim
· Over 139,000 subscribers
Subscribe
By subscribing, I agree to Substack’s
Terms of Use
and acknowledge its
Information Collection Notice
and
Privacy Policy
Not right now
The System Design Newsletter
Subscribe
Sign in
Home
Videos
Sponsorship
About
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
•
Neo Kim
696
Share this post
The System Design Newsletter
8 Reasons Why WhatsApp Was Able to Support 50 Billion Messages a Day With Only 32 Engineers
Copy link
Facebook
Email
Notes
More
24
Most Popular
View all
How PayPal Was Able to Support a Billion Transactions per Day With Only 8 Virtual Machines
Dec 26, 2023
•
Neo Kim
225
Share this post
The System Design Newsletter
How PayPal Was Able to Support a Billion Transactions per Day With Only 8 Virtual Machines
Copy link
Facebook
Email
Notes
More
13
How Stripe Prevents Double Payment Using Idempotent API
May 9, 2024
•
Neo Kim
354
Share this post
The System Design Newsletter
How Stripe Prevents Double Payment Using Idempotent API
Copy link
Facebook
Email
Notes
More
29
How Uber Computes ETA at Half a Million Requests per Second
Dec 3, 2023
•
Neo Kim
295
Share this post
The System Design Newsletter
How Uber Computes ETA at Half a Million Requests per Second
Copy link
Facebook
Email
Notes
More
25
How YouTube Was Able to Support 2.49 Billion Users With MySQL
May 31, 2024
•
Neo Kim
287
Share this post
The System Design Newsletter
How YouTube Was Able to Support 2.49 Billion Users With MySQL
Copy link
Facebook
Email
Notes
More
9
Latest
Top
Discussions
How Apple Pay Handles 41 Million Transactions a Day Securely 💸
#68: Break Into Apple Pay Architecture (5 Minutes)
Mar 27
•
Neo Kim
62
Share this post
The System Design Newsletter
How Apple Pay Handles 41 Million Transactions a Day Securely 💸
Copy link
Facebook
Email
Notes
More
2
How Do Websockets Work ✨
#67: A Simple Introduction to Websockets (3 Minutes)
Feb 28
•
Neo Kim
146
Share this post
The System Design Newsletter
How Do Websockets Work ✨
Copy link
Facebook
Email
Notes
More
20
Your YouTube Channel to Learn System Design 🔥
System Design YouTube Channel
Feb 7
•
Neo Kim
88
Share this post
The System Design Newsletter
Your YouTube Channel to Learn System Design 🔥
Copy link
Facebook
Email
Notes
More
18
1 Simple Technique to Scale Microservices Architecture 🚀
#66: How Great Software Engineers Build Microservices (2 Minutes)
Feb 4
•
Neo Kim
136
Share this post
The System Design Newsletter
1 Simple Technique to Scale Microservices Architecture 🚀
Copy link
Facebook
Email
Notes
More
5
How Bluesky Works 🦋
#65: Break Into Bluesky Architecture (17 Minutes)
Jan 22
•
Neo Kim
125
Share this post
The System Design Newsletter
How Bluesky Works 🦋
Copy link
Facebook
Email
Notes
More
13
Get Better With System Design in 2025 🔥
Take Survey and Get Rewards (4 Minutes)
Jan 13
•
Neo Kim
55
Share this post
The System Design Newsletter
Get Better With System Design in 2025 🔥
Copy link
Facebook
Email
Notes
More
How Do AirTags Work
#64: A Simple Introduction to AirTags Architecture (3 Minutes)
Jan 8
•
Neo Kim
140
Share this post
The System Design Newsletter
How Do AirTags Work
Copy link
Facebook
Email
Notes
More
10
How Shopify Handled 30TB per Minute With a Modular Monolith Architecture 🔥
#63: Break Into Modular Monolith Architecture (3 Minutes)
Dec 22, 2024
•
Neo Kim
215
Share this post
The System Design Newsletter
How Shopify Handled 30TB per Minute With a Modular Monolith Architecture 🔥
Copy link
Facebook
Email
Notes
More
5
How Nginx Was Able to Support 1 Million Concurrent Connections on a Single Server ✨
#62: Break Into Nginx Architecture (4 Minutes)
Dec 4, 2024
•
Neo Kim
199
Share this post
The System Design Newsletter
How Nginx Was Able to Support 1 Million Concurrent Connections on a Single Server ✨
Copy link
Facebook
Email
Notes
More
5
See all
The System Design Newsletter
Weekly newsletter to help busy software engineers become good at work
Subscribe
Recommendations
Alex Ewerlöf Notes
Alex Ewerlöf
Engineering Leadership
Gregor Ojstersek
Product for Engineers
PostHog
Social
linkedin
youtube
twitter
threads
instagram
bluesky
Website
systemdesign.one
frontpage
impressum
The System Design Newsletter
Subscribe
About
Archive
Recommendations
Sitemap
Share
Copy link
Facebook
Email
Notes
More
This site requires JavaScript to run correctly. Please
turn on JavaScript
or unblock scripts