Assuring 2000 payment transactions/sec reliably via resiliency testing

Achieving Resiliency, Reliability, and Scalability for one of the largest retail payments and settlement management agency

Large financial institutions lose money and customers when transactions drop, especially during rapid growth in customer base, fast developing teams, and technological innovation. Chaos engineering has emerged as a trusted testing discipline that changed the game for large companies as it involves testing not only the deployments but also the application infrastructure to see how systems will respond to real-world failures. This would mean improving reliability and resiliency, reducing financial loss and increasing customer satisfaction.

Our client, a large FinTech company in Asia processing over 1 billion payment transactions a day, faced a similar issue where financial transactions dropped during peak demands on the system. This resulted in financial loss, a decrease in customer satisfaction, and a toil on developers responding to incidents. They needed a solution that improved the reliability and resiliency of the overall platform.

Nagarro proposed a chaos engineering solution to improve the resilience of the client's FinTech platform. The team built a Continuous Resilience Testing platform that automates chaos experiments in delivery pipelines and production, leveraging the shift-right approach to run the tests in production. The company's chaos engineering efforts resulted in a significant improvement in the reliability and resiliency of its platform. This led to a reduction in financial loss, an increase in customer satisfaction, and a decrease in the toil on developers.

challenge

The client was experiencing exponential growth, but their systems were not keeping up. The company needed to find a way to improve the reliability of its systems without slowing down development or frustrating its customers. The company's complex technology stack made it difficult to troubleshoot problems and identify areas for improvement. They also needed to find a way to improve the developer productivity to encourage building new features instead of just fixing bugs.

solution

Nagarro proposed a chaos engineering solution to improve the resilience of the client's FinTech platform. We help build a Continuous Resilience Testing platform that automates chaos experiments in delivery pipelines and production, leveraging the shift-right approach to run the tests in production. The platform leverages various chaos faults to validate the resilience mechanism's disruption that could occur from real-world failures.

outcome

The platform helped the client discover vulnerabilities in service recovery, application design patterns implementation, and optimized configurations. Automated reliability tests ensured high resilience of critical application components. The company achieved a 16x reduction in failed transactions, a reduction in mean-time-to-recovery (MTTR) to 10 minutes, and a 10x improvement in customer satisfaction.

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Assuring 2000 payment transactions per second reliably with resiliency testing

Achieving Resiliency, Reliability, and Scalability for one of the largest retail payments and settlement management agency

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