diff --git a/README.md b/README.md
index 3ba1242..97d6386 100644
--- a/README.md
+++ b/README.md
@@ -771,6 +771,7 @@ An updated and organized reading list for illustrating the patterns of scalable,
 * [API Specification Workflow at WeWork](https://engineering.wework.com/our-api-specification-workflow-9337448d6ee6)
 * [Media Database at Netflix](https://medium.com/netflix-techblog/implementing-the-netflix-media-database-53b5a840b42a)
 * [Member Transaction History Architecture at Walmart](https://medium.com/walmartlabs/member-transaction-history-architecture-8b6e34b87c21)
+* [Sync Engine (2 parts) at Dropbox](https://dropbox.tech/infrastructure/-testing-our-new-sync-engine)
 * [Architectures of Finance and Banking Systems](https://www.sesameindia.com/images/core-banking-system-architecture)
 	* [Bank Backend at Monzo](https://monzo.com/blog/2016/09/19/building-a-modern-bank-backend/)
 	* [Trading Platform for Scale at Wealthsimple](https://medium.com/@Wealthsimple/engineering-at-wealthsimple-reinventing-our-trading-platform-for-scale-17e332241b6c)