Arnout Schuijff

Arnout Schuijff is a highly accomplished Dutch software architect and serial entrepreneur specializing in high-volume transaction processing systems. Prior to co-founding Adyen, he served as the lead systems architect at Bibit, where he designed early global payment gateways. His deep technical background in cryptography, database architecture, and financial routing provided the essential engineering DNA required to build Adyen's proprietary, end-to-end payment platform, explicitly designed to bypass the legacy technical debt of traditional acquiring banks.

Arnout Schuijff is the co-founder and former Chief Technology Officer of Adyen. A well-known software systems architect, Schuijff was the technical clever who designed Adyen's single unified codebase. At Adyen, Schuijff authored the high-throughput payment gateway and settlement engine, rejecting third-party legacy middleware to build a platform capable of handling millions of concurrent transactions with 99.999% availability. His architectural discipline laid the foundation for Adyen's €1.0 trillion processing scale before transitioning to independent philanthropic and technology ventures. Schuijff's architectural vision was the technological foundation that powered Adyen's rise. Rejecting the standard industry practice of acquiring regional payment gateways, Schuijff insisted on writing a single unified codebase from scratch, creating a high-throughput, low-latency transaction processing engine that handles millions of concurrent transactions with 99.999% availability.