BANKING PAYMENT HUB
Category
Payment Gateway / Banking Integration
Overview
A mid-tier bank was managing multiple payment channels—credit cards, wire transfers, ACH, and mobile payments—across various legacy systems. This caused operational bottlenecks and made it difficult to have a centralized view of transactions. Compliance and reporting also became cumbersome due to inconsistent data formats and fragmented workflows.

How the Problem Was Solved
Technology Stack:
- Backend: Java (Spring Boot) microservices for payment orchestration
- Integration Layer: Apache Camel / MuleSoft for routing and transformation of payment messages
- Database: Oracle / PostgreSQL for storing transaction data and audit logs
- Security: OAuth 2.0, TLS encryption, and JWT-based authentication for internal services
Key Features:
- Unified Payment Hub: A central platform to handle different payment types (ACH, SWIFT, SEPA, card payments).
- Real-time Fraud Detection: Implemented rule-based checks and anomaly detection before processing payments.
- Regulatory Compliance: Automated generation of compliance reports (e.g., KYC, AML) from consolidated data.
- Dashboard & Alerts: A real-time monitoring console for transaction statuses and alerts on suspicious activities.
Approach:
- Microservices Architecture: Separated payment methods (ACH service, wire service, card service) into independent services for easier updates and maintenance.
- Message Transformation: Standardized payment message formats (ISO 20022, SWIFT MT) with an integration layer to accommodate various transaction protocols.
- High Availability: Deployed on a clustered environment with load balancing to ensure minimal downtime and handle peak transaction loads.
The Results
Impact on the Business:
- Increased Efficiency: Reduced manual reconciliation work by 50% due to centralized transaction tracking.
- Better Customer Experience: Faster transaction times and improved transparency for end-users.
- Reduced Risk: Streamlined fraud detection cut down false positives by 30% and significantly improved compliance.
Cost:
- ~275K USD
- Initial investment in new infrastructure and integration tools, offset by long-term savings in operational overhead.
Time:
- 10 months to complete the integration and roll out across all branches, including a pilot phase of 3 months.
Lessons Learned
- What Went Well:
- Adopting microservices and an integration layer made it easier to add future payment types.
- Early involvement of compliance teams ensured the solution met regulatory standards from the start.
- What We Would Do Differently Next Time
- Allocate more resources to stress testing and performance tuning before go-live.
- Implement advanced analytics earlier to provide better insights into transaction patterns and potential fraud.