How Stripe Rebuilt Its Payment Infrastructure for 100 Million API Calls a Day

Episode notes

In this episode, Lucas and Luna dive into Stripe's architectural overhaul of its core payment processing pipeline to handle over 100 million API calls per day. They explore the key decisions: migrating from a monolithic Rails app to a service-oriented architecture, the introduction of a custom idempotency layer, and how Stripe used deterministic simulation testing to ensure correctness at scale. Lucas breaks down the trade-offs between consistency and availability in payment systems, and Luna questions the operational complexity of managing hundreds of microservices. The conversation also touches on Stripe's cultural approach to reliability - embedding SRE principles directly into development teams rather than centralizing them. No hype, just concrete engineering details from one of the most demanding production environments in fintech. #Stripe #PaymentInfrastructure #APIScale #Microservices #Idempotency #DeterministicSimulation #SRE #PaymentProcessing #Fintech #SystemArchitecture #Scalability #Reliability #BusinessAndTechnology #FexingoBusiness #BusinessPodcast #CTOPodcast #TechnicalLeadership #EngineeringOrg Keep every episode free: buymeacoffee.com/fexingo

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