Operational Bottlenecks & Technical Debt
PaySecure needed to meet stringent RBI data localization mandates, achieve PCI-DSS Level 1 compliance, and handle peak festive transaction volumes with sub-second response times.
- ✕ Stringent security audits required zero storage of unencrypted CVV/PIN data.
- ✕ Bank API latency bottlenecks caused dropped transactions during peak hours.
- ✕ Manual KYC document verification created a 48-hour onboarding delay for users.
Full-Cycle Architectural Modernization
CodeCurious engineered a hardened React Native mobile application and Java Spring Boot financial microservices with hardware security module (HSM) encryption, automated AI KYC, and multi-bank UPI failover switching.
- ✓ Multi-bank UPI switch dynamically routing through the fastest bank server.
- ✓ Automated optical character recognition (OCR) verifying Aadhaar and PAN in under 30 seconds.
- ✓ End-to-end payload encryption with AES-GCM 256-bit cryptographic keys.
Core Engineering Highlights
A deep look at the custom microservices, automated workflows, and UI engineering delivered for PaySecure Fintech.
Instant UPI 2.0 & QR Payments
Scan any merchant QR code with sub-second settlement and multi-account bank linking.
Biometric Face & Fingerprint Auth
Hardware-backed biometric authentication with device binding preventing session hijacking.
Automated Instant e-KYC
AI-assisted document scanning and live face liveness detection reducing onboarding from 48h to 2 minutes.
Smart Financial Insights & Expense Tracking
Automated categorization of daily spends with predictive monthly budget alerts.
High-Yield Micro-Savings Vaults
Automated round-up savings investing spare change into gold and liquid mutual funds.
Fraud Detection Engine
Machine learning models scoring every transaction for geographic and behavioral anomalies.
Full-Stack Architectural Ecosystem
How we architected and combined frontend frameworks, backend microservices, caching layers, and cloud infrastructure for maximum uptime.
Mobile Frontend
Core Banking Backend
Databases & Security
Cloud & Compliance
From Blueprint to Zero-Downtime Launch
How our agile sprint methodology guaranteed delivery on schedule and within budget.
Regulatory Compliance Blueprint
Designing architecture aligned with RBI data localization and PCI-DSS Level 1 guidelines.
Cryptographic Security Implementation
Integrating AWS CloudHSM and tokenization engines for bank-grade payload encryption.
Core Banking API Integration
Connecting NPCI UPI switches, ICICI, HDFC, and Yes Bank Open Banking APIs.
VAPT & Penetration Testing
Third-party CERT-In empanelled security audits with zero critical vulnerabilities.
Zero-Downtime Production Rollout
Deploying multi-region failover cluster on AWS Mumbai with active-active databases.
Continuous Fraud Model Tuning
Monitoring transaction telemetry with automated anomaly detection triggers.
"Building a financial application in India requires strict regulatory rigor. CodeCurious delivered a bulletproof platform that passed our CERT-In and bank security audits on the very first try. Outstanding team."
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