AWS Architecture Blog
Author: Dustin Ellis
Dustin Ellis is a Senior Solutions Architect at AWS aligned to Financial Services customers and specializes in Resilience and Security.
Improving platform resilience at Cash App
Cash App, a leading peer-to-peer payments and digital wallet service from Block, Inc., has implemented resilience improvements across the entire technology stack. In this post, we discuss how Cash App improved the resilience of its compute platform built on Amazon Elastic Kubernetes Service (Amazon EKS) by implementing a dual-cluster topology to reduce single points of failure. We also discuss how Cash App used AWS Fault Injection Service (AWS FIS) to conduct an Availability Zone power interruption scenario in non-production environments, preparing the platform team for real-world failures and ongoing