Fintech / Microservices • Client: PayPulse Global
Hyper-Scale Fintech Payment Gateway
Architected a resilient payment router processing over 12,000 transactions per second with 99.999% uptime.
Key Result: Reduced checkout latency from 1.8s to 120ms; handled over $45M in peak daily transactions without a single dropped packet.
The Technical Challenge
The client experienced latency spikes and failed checkouts during peak seasonal flash sales due to a monolithic legacy database bottleneck.
The Engineering Solution
Designed and deployed an event-driven microservices architecture in PHP 8.3 and Go, backed by Redis clusters, MySQL read-replicas, and idempotent payment reconciliation workers.