American Express Migrates Global Payments Network Twice with Zero Downtime
By
madflojo
Hot, fresh, and worth queueing round the block for.
Summary
American Express successfully migrated its global payments network twice with zero customer-impacting downtime, maintaining uninterrupted transaction processing during complex infrastructure changes. The article details the architectural approach and operational coordination required to move live payments traffic reliably under strict constraints, expanding on a conference talk about the technical achievement.
Key quotes
· 4 pulledmigrating the American Express Payments Network - not once, but twice — with zero customer-impacting downtime
no transactions were interrupted and no planned maintenance windows were required during either migration
moved live payments traffic reliably under strict operational constraints
The architecture and coordination that kept global transactions flowing through complex application and infrastructure changes
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