Breaking Free from End-to-End Testing: Why Contract Testing is the Key to Microservices Success


Teams are increasingly moving towards microservices architecture, desiring short lead times with fast and independent deployments of their components. Still, they often struggle to see those desired benefits because they continue to rely too much on traditional end-to-end testing strategy. While end-to-end testing gives you maximum level of confidence, it can hamper your deployment frequency and lead time significantly, create coupling between teams, and make teams less autonomous. This is exactly the problem we went through at Discover Financial Services when we started modernizing our systems to microservices architecture. In this talk, I will share our experiences including the challenges we faced, our end-to-end testing obsession, how contract testing came to the rescue, various contract testing strategies and tools, the journey we went through in embracing contract testing, and how it helped remove bottlenecks in our CI/CD pipeline.


Praveen Erode Mohanasundaram

Senior Principal Software Engineer @ Discover

Praveen Erode Mohanasundaram is hands-on engineering leader with almost two decades of experience in the financial services industry. He is a certified Kubernetes Application Developer and an AWS certified Solutions Architect. He currently builds new technology capabilities for Discover® and contributes to open source in his spare time. Praveen has a deep understanding of the Payments landscape and recently played a significant role in building, driving, and scaling contract testing practices at Discover. In his free time, Praveen enjoys playing tennis and cricket

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Session Sponsored By

Discover Technology represents the people, processes, and technology behind the products that help our customers achieve a brighter financial future.  


Monday Mar 27 / 11:50AM BST ( 50 minutes )


Westminster (4th Fl.)


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