FinTech

Global Active-Active Payment Gateway on AWS

Design a zero-downtime payment processing infrastructure capable of handling 50k+ TPS while maintaining PCI-DSS compliance.

Our role: Lead Cloud Architect & DevOps Engineer

Global Active-Active Payment Gateway on AWS product screenshot, built by Devs & Logics

The challenge

Regional AWS outages and high latency for cross-border transactions; required Multi-Region Active-Active architecture with instant failover and data consistency.

What Devs & Logics delivered

Solution 1: Multi-region setup (US-East-1 & EU-West-1) using Route53 latency-based routing + health checks
Solution 2: DynamoDB Global Tables for sub-second multi-master replication
Solution 3: EKS + Karpenter for rapid autoscaling
Solution 4: Transit Gateway and AWS Network Firewall for strict network isolation
Solution 5: mTLS (Istio) for service-to-service security

Outcomes

Achieved 99.999% availability (Five Nines)
Reduced cross-border latency by 40%
Zero downtime recorded during regional failure drills

Technologies

AWSRoute 53EKSDynamoDB Global TablesTransit GatewayTerraformIstioGitHub ActionsOPA

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