AI-Based Credit Line System Development

ONLY SENIOR FULL STACK PROGRAMMERS!
PLEASE READ CAREFULLY. THIS IS FOR SENIOR FULL STACK PROGRAMMERS ONLY WHO HAVE EXPERIENCE IN ECCOMERCE PLATFORMS

We are looking for a team that can develop an AI credit line system that can auto and pre- approve credit lines for members who want to purchase services and/or products on our website. Credit lines will be decided with certain parameters. We have a website that is like a hybrid of ebay and angie's list. We offer services and products. Finance Credit Line percentage will be charged on a monthly basis once credit has been used.

Here is the coding we are using right now
Frontend:
*React + Vite
*React Router (react-router-dom, Outlet)
*Tailwind CSS + CSS Modules
*Context API (states: main/chatbot)
*Icon libs: lucide-react, react-icons
Key views/components: Feed, Home (store), Product/Service Detail, Store (Banner/Top/Services), ChatComponent, OrderChat, Wishlist, AdministratorTop, SchedulerPanel
*Notificaciones in-app (EN), responsive web + mobile

Backend:
*Firebase: Firestore, Auth, Storage, Realtime (onSnapshot), Cloud Functions
Node.js microservice (Render/Railway) + jobs por Excel/CSV
*AI: Google Generative Language API (Gemini 2.0-flash)
*Social APIs: Instagram Graph, Facebook Graph (Pages), YouTube Data API v3, *TikTok Developers API, Spotify Web API, (opcional) X/Twitter API
*DevOps/Hosting: Firebase Hosting, Vercel