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Cloud-Based Payment Processing Platform Modernization with Microservices Architecture and Global Payment Gateway Integration

leobit.com

Financial services

eCommerce

Gaming

Business Challenges

Legacy monolithic architecture with high maintenance costs, limited scalability, and inflexibility hindering international expansion. Need for cloud migration, microservices adoption, and integration with global payment gateways to support cross-border transactions and PCI DSS compliance.

About the Client

Australiabased FinTech company providing payment processing services and esports gaming solutions with 20+ employees

Project Goals

Modernize payment platform architecture for scalability and flexibility
Migrate infrastructure to AWS cloud environment
Implement microservices architecture using .NET stack
Integrate multiple international payment gateways
Achieve PCI DSS Level 1 certification
Enable cross-border/multi-currency transaction capabilities
Improve transaction processing efficiency by 35%

Core System Requirements

B2B/B2C payment processing engine
Recurring direct debit service
Global transaction tracking dashboard
Stripe/CyberSource/MerchantWarrior integrations
Chargeback email parsing automation
Real-time payment analytics with Datadog
Multi-currency conversion module

Technology Stack

.NET microservices architecture

AWS cloud infrastructure

Docker containerization

Kubernetes orchestration

Redis transaction validation

AWS Key Management Service

External System Integrations

Stripe Payment Gateway
CyberSource Integration
MerchantWarrior API
3D Secure authentication
Chargeback email parsing service

System Requirements

Horizontal scalability for 35% user growth
99.99% system availability SLA
PCI DSS Level 1 compliance
Real-time transaction monitoring
Containerized deployment automation
Multi-region AWS architecture

Expected Business Impact

Enables international market expansion through multi-gateway integration, reduces infrastructure costs by 40% via cloud optimization, achieves 35% user growth through improved scalability, and establishes regulatory compliance for global operations. Containerization and microservices architecture support rapid feature deployment while maintaining system stability.