E-Commerce Payment Integration Platform
A complex project to develop a unified payment gateway, enabling online merchants to integrate multiple payment methods (card, bank transfer, e-wallets) through a single API.
The Challenge
The client, a major online retailer, faced a fragmented payments infrastructure. Each payment method had a separate integration, leading to high maintenance costs, an inconsistent user experience, and difficulties in financial reporting.
Our Solution
We designed and built a scalable middleware platform using Node.js and microservices. The platform consolidates connections to over 15 payment providers, offering a unified RESTful API, a centralized admin dashboard, and an advanced real-time transaction monitoring system.
Process & Technologies
We adopted an Agile approach with 2-week sprints. The technical stack included: Backend (Node.js, Express, NestJS), Databases (PostgreSQL for transactional data, Redis for cache), Security (end-to-end encryption, PCI DSS compliant tokenization), and Infrastructure (Docker, Kubernetes on AWS).
Administration dashboard for monitoring transaction flow.
Results & Impact
- The average time to integrate a new payment method decreased from 6 weeks to 7 working days.
- Payment conversion rate increased by 22% due to a faster and more reliable checkout experience.
- Operational costs for payment management were reduced by 35%.
- The system now processes over 50,000 transactions daily, with 99.99% availability.