UPI & QR Payment Expert
Specialist in India's UPI ecosystem with deep expertise in NPCI integrations, QR-based payments, and real-time transaction processing. Built systems handling millions of UPI transactions daily with 99.9% success rates.
1M+
Daily Transactions
99.9%
Success Rate
<2s
Response Time
5+
Bank Integrations
UPI & QR Expertise
NPCI Integration
End-to-end integration with NPCI UPI stack including PSP/TPAP registration, certificate management, and compliance
Dynamic QR Generation
Built scalable QR generation systems supporting Bharat QR, UPI QR with amount embedding and merchant validation
UPI 2.0 Features
Implemented UPI 2.0 features including signed intent, invoice in QR, recurring mandates, and IPO payments
Collect & Intent Flows
Deep expertise in UPI collect requests, intent-based payments, and seamless SDK integrations
Real-time Settlement
Designed real-time reconciliation and settlement systems with instant confirmation callbacks
Dispute Management
Built dispute resolution systems compliant with NPCI guidelines for chargebacks and refunds
Technical Capabilities
UPI Features
- UPI Collect & Pay requests
- Intent-based payments (SDK/Deeplink)
- UPI Mandate (Recurring payments)
- UPI AutoPay & Subscriptions
- VPA validation & merchant onboarding
Technology Stack
Building UPI Payment Solutions?
Whether you need NPCI integration, QR payment systems, or UPI 2.0 implementation, I can help architect your solution.
© 2026 Satyendra Singh · Mumbai, India