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FlutterGogRPC
VaultPay
A high-security mobile payment gateway facilitating cross-border transactions with sub-second latency and biometric authentication.
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TheChallenge
Traditional payment gateways couldn't meet the demands of modern cross-border commerce: slow settlement times, high fees, and a lack of native mobile security features left both businesses and consumers exposed.
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TheSolution
VaultPay was built with a Flutter frontend for pixel-perfect native performance on iOS and Android, backed by a Go microservices architecture using gRPC for ultra-low-latency communication. We integrated biometric authentication natively, achieving sub-second transaction confirmation.
TECH STACK
EngineeredforScale
Flutter
Go
gRPC
Kubernetes
PostgreSQL
Stripe API