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#payment
Payment systems engineering: authorization versus settlement, reconciliation, chargebacks and reversals, ledgers and the compliance work around them.
4 posts
2025
- The Fintech Staff Engineer: Translating Compliance into Architecture
A framework for fintech staff engineers to translate vague compliance mandates into concrete technical requirements, architecture patterns, and SDLC processes.
- Handling Payment Exceptions: Chargebacks, Reversals and Disputes
Payment engineers spend 80% of their time on 5% of transactions. Learn how to architect exception handling, dispute flows, and ledger reconciliation.
- The Three Flows: A Mental Model for Debugging Payment Systems
The Three Flows framework: funds, data, and reconciliation. Turn payment debugging from guesswork into forensic science.
2024
- The Map Is Not the Territory: Payment Rails in Production
Authorization and settlement are separate systems with separate timelines. Learn the real-world complexities of payment rails that documentation won't tell you.