Engineering Journal
Writing.
Deep dives into SEPA Instant Payments, ISO 20022, Java 25 and the craft of building payments infrastructure at scale.
📚 Series
Building a High-Performance Instant Payment System
From the 10-second regulatory constraint to production incident response — this series walks through every layer of building an instant payment system that holds up under real load: architecture, performance, fraud, resilience, compliance, infrastructure, security and the human side of shipping it.
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★ Featured
The Problem Space
Understanding constraints before writing a single line of code — what SCT Inst actually demands, who the actors are, and why classical architectures fall short.
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