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AM Tech Hub
Fintech & Payments

Re-Engineering a High-Throughput Payment Gateway to Process $1.4B with 99.999% Availability

$1.4 BillionAnnual Volume Processed
12ms (P99)Transaction Latency
100% UptimeZero-Downtime Migration

The Architectural Challenge

ApexPay was hitting database deadlock thresholds during peak promotional events on their legacy PHP/MySQL infrastructure. Payment failures were climbing to 3.2%, causing merchant churn and regulatory compliance concerns.

The Engineered Solution

We re-architected the payment processing pipeline using an immutable double-entry ledger design with Go microservices, distributed CockroachDB for multi-region active-active replication, and automated PCI-DSS tokenization.

System Architecture: Active-active multi-region Kubernetes clusters on Google Cloud Platform with Cloud Spanner / CockroachDB distributed SQL. Event ledger streams managed by Apache Pulsar.

Technologies Deployed

GoNext.jsCockroachDBApache PulsarGCPDocker
“Migrating an active payment gateway processing millions daily without a second of downtime seemed impossible until this engineering squad stepped in and executed flawlessly.”

Elena Rostova

Chief Technology Officer, ApexPay

Project Scoping • Guaranteed 48h Engineering SLA

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With Principal Systems Architects

Specify your project requirements below. Whether deploying our turnkey Smart POS & HRMS platforms, developing autonomous agentic AI workflows, or re-architecting legacy monoliths into high-throughput cloud microservices—our senior architects will review your brief under mutual NDA.

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Supported Architecture Tracks:
• Smart POS Platform• HRMS & Automated Payroll• Agentic AI & Enterprise RAG• 7-R Legacy Modernization• Custom SaaS Multi-Tenant• High-Concurrency Go• Cloud & DevOps GitOps• Code Quality Audit
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