See how VibeProz hardened and scaled an AI-coded community lending platform for a US fintech startup

Engagement Details

VibeProz partnered with a US-based fintech startup that had used AI-assisted development tools to move fast on a community-driven lending platform. The customer needed an engineering partner to take what they had built, fix the architecture, close the security gaps, and deliver a system ready for production. The platform had to handle multi-party loan workflows across five stakeholder types, committee-based loan governance, ACH payments, Plaid-based financial verification, and multi-region compliance. VibeProz applied vibe coding with senior engineering oversight to accelerate delivery without compromising on architecture quality or security posture.

Technologies:

• Node.js
• Java
• Spring Boot
• ReactJS
• PostgreSQL
• MongoDB
• RabbitMQ
• Keycloak
• Plaid
• WhatsApp Business API
• QuickBooks
• Metabase
• Cursor

Benefits:

• Fragile prototype replaced with a production-grade architecture
• Secure, role-based access control across all services
• Full loan lifecycle with no workflow gaps
• Faster delivery through vibe coding with senior engineering oversight
• Significantly less manual data entry at onboarding
• Multi-region compliance-ready with encrypted PII storage