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DeriPesa: Revolutionizing Forex Fund Management with Instant M-Pesa Integration

FinTech
Mobile Development
Payment Integration

A comprehensive mobile and web platform that automates deposits and withdrawals between M-Pesa and Deriv forex accounts, serving over 10,000 active traders with sub-10-second transaction processing.

DeriPesa: Revolutionizing Forex Fund Management with Instant M-Pesa Integration Hero

About the client

A fintech platform simplifying forex fund management for East African traders by providing seamless integration between M-Pesa mobile money and Deriv trading accounts.

Background

Forex traders in Kenya faced significant friction when managing their trading funds. The process of depositing money from M-Pesa to Deriv accounts and withdrawing profits back was manual, slow, and often required third-party intermediaries. Traders needed a solution that could provide instant, automated transactions with competitive exchange rates.

DeriPesa approached our agency to build a comprehensive platform that would eliminate these pain points and create a trusted, automated bridge between M-Pesa and Deriv accounts. The platform needed to work seamlessly across web and mobile interfaces while maintaining the highest security standards for financial transactions.

Challenges

Payment Gateway Complexity. Integrating with both M-Pesa and Deriv APIs required handling different authentication mechanisms, rate limits, and transaction workflows while ensuring 100% reliability.

Real-time Transaction Processing. Users expected instant deposits and withdrawals, requiring us to build a robust queueing system that could handle concurrent transactions without failures or delays.

Trust and Security. As a financial platform handling real money, we needed to implement bank-level security measures, including encryption, secure API communications, and comprehensive audit logging.

Cross-Platform Consistency. The platform needed to deliver identical functionality across iOS, Android, and web while maintaining a consistent user experience and ensuring feature parity.

Rate Optimization. Providing competitive exchange rates while covering operational costs required sophisticated rate calculation algorithms and real-time market data integration.

User Onboarding. Simplifying the onboarding process for non-technical traders while implementing proper KYC (Know Your Customer) verification to comply with financial regulations.

Tech Stack

Mobile

ExpoReact NativeFirebase Cloud Messaging

Frontend

Next.jsReactTypeScriptTailwind CSS

Backend

Node.jsExpress.jsTypeScript

Database

PostgreSQLRedis (caching)

Payment Integration

M-Pesa Daraja APIDeriv APISafaricom STK Push

Infrastructure

AWS EC2AWS RDSAWS S3CloudFrontRoute 53

DevOps

DockerGitHub ActionsPM2Nginx

Security

JWT AuthenticationOAuth 2.0AES-256 EncryptionSSL/TLSRate Limiting

Monitoring

Google AnalyticsCustom Logging

Our Solution

We architected a modern, cloud-native fintech platform that prioritizes speed, security, and user experience. The solution was built from the ground up to handle high transaction volumes while maintaining sub-10-second processing times.

Automated Transaction Pipeline. We developed a fully automated transaction processing system that handles the entire flow from M-Pesa to Deriv and vice versa. The system includes intelligent retry mechanisms, transaction status tracking, and automatic reconciliation to ensure 100% transaction accuracy.

Cross-Platform Mobile Apps. Using Flutter, we built native iOS and Android applications that share the same codebase while delivering platform-specific experiences. The apps feature biometric authentication, push notifications for transaction updates, and offline capability for viewing transaction history.

Responsive Web Application. A Progressive Web App (PWA) that works seamlessly across all browsers and devices, providing the same features as the mobile apps with the convenience of instant access without installation.

Real-time Rate Engine. We implemented a dynamic pricing engine that fetches real-time exchange rates and calculates the best possible rates for users while maintaining business sustainability. The engine updates rates every 30 seconds and displays them transparently to users.

Secure Infrastructure. All transactions are encrypted end-to-end using AES-256 encryption. We implemented OAuth 2.0 for authentication, JWT tokens for session management, and comprehensive logging for all financial operations. The infrastructure is hosted on AWS with automatic failover and redundancy.

User-Friendly Dashboard. Created an intuitive dashboard showing transaction history, pending operations, account balances, and detailed analytics. Users can filter transactions by date, type, and status, and export reports for their records.

Customer Support Integration. Built an in-app support system where users can report issues, track ticket status, and receive help without leaving the platform. Integration with email and social media ensures multiple support channels.

Key Outcomes

Business Outcomes

10,000+ Active Monthly Users. The platform rapidly gained traction, attracting over 10,000 active traders who use it regularly for their forex fund management.

150,000+ Transactions Completed. Successfully processed over 150,000 transactions with a 99.9% success rate, building trust and reliability in the market.

Sub-10-Second Processing. Achieved industry-leading transaction speeds with 95% of transactions completing in under 10 seconds from initiation to confirmation.

100% Secure Operations. Zero security breaches or unauthorized transactions since launch, maintaining the highest standards of financial security.

Market Leadership. Became the go-to platform for Kenyan forex traders, with testimonials highlighting ease of use and best-in-market rates.

Multi-Channel Presence. Successfully launched on Google Play Store, iOS App Store, and web, providing users with flexible access options.

Technical Outcomes

  • Built a scalable microservices architecture handling 10,000+ concurrent users
  • Achieved 99.99% uptime through AWS infrastructure with auto-scaling and load balancing
  • Implemented comprehensive API integration with M-Pesa STK Push and Deriv OAuth APIs
  • Developed real-time transaction monitoring dashboard with WebSocket connections
  • Created automated testing suite covering 85% code coverage
  • Implemented CI/CD pipelines for rapid deployment across all platforms
  • Achieved <200ms average API response time for critical operations
  • Built robust error handling and automatic retry mechanisms reducing failed transactions by 95%

Summary

DeriPesa transformed the forex trading experience for thousands of Kenyan traders by eliminating the friction in fund management. What used to take hours or even days now happens in seconds, with complete transparency and security.

The platform continues to evolve with new features based on user feedback, including support for additional payment methods and enhanced analytics. DeriPesa stands as a testament to how technology can simplify complex financial processes and create genuine value for users.

If you're looking to build a fintech platform that combines speed, security, and exceptional user experience, discover how we can help bring your vision to life.