The PayEng Playbook·1y5 Common Antipatterns in Payment Systems Design
Good payment engineers focus on business logic rather than performance or clean code. Common antipatterns in payment system designs include relying solely on synchronous responses from PSPs, confusing payments with money transfers, building on a card-first design, using incorrect state machines, and sticking to early database decisions. Addressing these issues can lead to more robust and maintainable payment systems.
ByteByteGo·1yHow AMEX Processes Millions of Daily Transactions With Millisecond Latency
American Express processes millions of transactions daily with millisecond latency by overhauling its payment system in 2018. Moving from legacy infrastructure to a modern cloud-ready system improved scalability, flexibility, and security. The key component, Global Transaction Router (GTR), uses Go language for concurrency, gRPC over HTTP/2 for faster internal communication, and asynchronous logging for performance optimization. Profiling, benchmarking, reader-writer mutexes, and avoiding excessive Go channels are some strategies employed to maintain high transaction processing speed and low latency.
EO·1yHow I Built a $300M Startup with No Degree and No NetworkㅣSelfbook, Khalid Meniri
Khalid Meniri, co-founder and CEO of Selfbook, shares his journey from Algeria to New York City, highlighting his perseverance despite lacking formal education or a professional network. Selfbook revolutionizes the hotel booking industry by integrating digital payment solutions like Apple Pay and streamlining the booking process. Meniri emphasizes the importance of consistent vision, belief in the product, and the necessity of adaptability in overcoming industry challenges.
LogRocket·1yFintech UX design: What the best finance apps get right
Fintech apps like Revolut, Stripe, PayPal, and Wise excel by prioritizing user experience through intuitive onboarding, robust security measures, and user engagement strategies. Their effective use of progressive disclosure, gamification, and customizable interfaces ensures ease of use, boosts confidence, and maintains high user retention. These design principles are essential for simplifying complex financial tasks and building trust in digital finance solutions.