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Ideas for engineers building consequential systems.

FinTech engineering, production AI, and software architecture—explained with practical models and original diagrams.

19
Jul

Open Banking Consent as a First-Class State Machine

4 min read
19
Jul

Real-Time Fraud Decisions Under 100 Milliseconds

4 min read
19
Jul

ISO 20022 as a Domain Model, Not an XML Problem

4 min read
19
Jul

Double-Entry Ledger Architecture for Product Engineers

4 min read
19
Jul

Idempotency at Scale: More Than a Request Header

4 min read