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Development of Scalable Payment Service MVP for Financial Platform

sombrainc.com

Financial services

Business services

eCommerce

Information technology

Business Challenges in Payment Processing at Scale

Need to enable seamless fund transfers between 10,000+ small businesses and their customers while maintaining user-friendly cross-platform functionality. Must handle migration of 1M+ users from legacy systems with reliable transaction processing and minimal downtime.

About the Client

Digital platform providing financial management tools for small/medium businesses, gig contractors, and entrepreneurs

MVP Development Goals for Payment Platform

Implement scalable payment service architecture
Create seamless KYC-based onboarding process
Support multi-channel payment methods (cards, bank transfers, platform balance)
Ensure cross-platform compatibility (web, iOS, Android)
Maintain system stability during large-scale user migration

Core Payment System Functionalities

Event-driven webhook handler for payment updates
Multi-method transaction processing (Apple Pay, Google Pay, cards, bank transfers)
Real-time notification service for transaction events
KYC-compliant user verification workflow
Internal balance management system

Technology Stack Requirements

Node.js

React Native

AWS

PostgreSQL

Redis

Third-Party System Integrations

Apple Pay/Google Pay APIs
Payment gateways (Stripe, Adyen)
Bank account verification services
Push notification services (Firebase, APNs)

System Performance Criteria

Support 1M+ concurrent users
99.99% system availability
PCI DSS compliance
Sub-200ms transaction processing latency
Automated scaling during peak loads

Expected Business Impact of MVP Deployment

Enable 2000+ active users to process thousands of daily transactions with feeless methods, accelerate platform adoption through seamless UX, and establish foundation for scaling to 10K+ business users while maintaining regulatory compliance and operational efficiency.