The AWS Developers Podcast

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Episode 182

From Monolith to Microservices: How Zilch Scaled a Modern Payment Platform

Sep 19, 25 • 00:44:58

With Robert Nelson, VP of Engineering, Zilch, and Mike Davis, Engineering Manager, Zilch

About this episode

Join us for an insightful conversation with Mike Davis, Engineering Manager, and Rob Nelson, VP of Engineering at Zilch, a leading UK-based buy now pay later platform. Discover how this cloud fintech scaled from a monolithic architecture to a sophisticated microservices ecosystem serving 5 million customers. Learn about their journey migrating from MSSQL to Aurora, their innovative use of AWS services including EKS, SNS/SQS for event-driven architecture, and API Gateway for WebSocket connections. The discussion explores their unique implementation of push notifications, in-app messaging, and how they leverage generative AI for merchant discovery. Get a behind-the-scenes look at their fraud detection system using Kinesis and Flink, and hear about their upcoming physical card launch.

Links

Here are the links to the tools, technologies, or articles we mentioned in this episode.