From 5dd3dbbd5a1999ef164beba0dc87bf3f1924680d Mon Sep 17 00:00:00 2001
From: Neo Kim <118598641+systemdesign42@users.noreply.github.com>
Date: Mon, 19 Jan 2026 15:57:33 +0100
Subject: [PATCH] Add Payment System Design

---
 README.md | 1 +
 1 file changed, 1 insertion(+)

diff --git a/README.md b/README.md
index 15fcdb3..0ba8925 100644
--- a/README.md
+++ b/README.md
@@ -169,6 +169,7 @@
 
 - [How Uber Computes ETA at Half a Million Requests per Second](https://newsletter.systemdesign.one/p/uber-eta)
 - [How Uber Finds Nearby Drivers at 1 Million Requests per Second](https://newsletter.systemdesign.one/p/how-does-uber-find-nearby-drivers)
+- [How Uber Payment System Handles 30 Million Transactions Per Day](https://newsletter.systemdesign.one/p/payment-system-design)
 
 #### W companies