Built a secure, multi-currency payment processing API handling real-time cross-border transactions across 40 countries with PCI DSS Level 1 compliance.
Challenges
FX volatility exposure between initiation and settlement
PCI DSS scope creep across microservice boundaries
Fraud rate exceeding 2.1% on card-not-present transactions
Our Solution
✦Real-time FX hedging via liquidity partner API with rate lock
✦Tokenization service isolating cardholder data to single PCI scope
✦3DS2 with device fingerprinting and behavioural velocity checks