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FINTECH & PAYMENTS
CLIENT: ApexPay UK (London, United Kingdom)
APEXPAY: REBUILDING CORE TRANSACTION ENGINE IN GOLANG
ApexPay needed a high-performance financial ledger capable of processing thousands of multi-currency transactions per second with microsecond ledger reconciliation.
CLIENT ORGANIZATIONApexPay UK (London, United Kingdom)
INDUSTRY DOMAINFintech & Global Payments
// MEASURABLE RESULTS
KEY PERFORMANCE & ROI METRICS
-45%TRANSACTION LATENCYReduced sub-second checkout delays
99.999%SYSTEM UPTIMEZero downtime during peak Black Friday
25,000 req/sPEAK CAPACITYHandled concurrent payment loads
$120,000/yrCLOUD BILL SAVINGSOptimized AWS container infrastructure
// THE CHALLENGE & PROBLEM STATEMENT
BUSINESS & TECHNICAL BOTTLENECKS
ApexPay was struggling with legacy monolithic API bottlenecks that caused transaction timeouts during high-traffic flash sales and elevated server bills.
// THE BROSDEV APPROACH & ARCHITECTURE
ENGINEERING SOLUTION & SYSTEM DESIGN
BrosDev deployed a 5-member dedicated squad to decompose the backend into high-concurrency microservices written in Golang, utilizing Redis cluster caching and Event-Driven Kafka message queues.
ARCHITECTURE SPECIFICATION:Event-driven microservices architecture using Go, Kafka queues, PostgreSQL relational double-entry ledgers with HSM tokenization, and automated failover clusters.
// TECHNOLOGIES & TOOLS UTILIZED
GolangPostgreSQLKafkaAWS EKSRedisDocker
"BrosDev's engineers delivered a bulletproof architecture. Our payment success rate hit an all-time high of 99.98% within 60 days of deployment."
— Marcus Vance, CTO at ApexPay UK