Full-Stack Developer for AI-Powered File Conversion Web App

Description:

I am looking for a skilled developer to build a web-based image tool that uses AI to remove backgrounds and allows users to convert image formats (like JPG to PNG, WebP, etc.).
I already have the HTML front-end designed — your role is to integrate it with a backend that includes AI-powered features.
Core Features Needed:

AI background remover (using rembg or similar deep learning tools)
Image format converter (e.g., JPG ↔ PNG)
Upload and download functionality
Clean, responsive user interface (connect to my existing HTML)
Preferred Tech Stack:

Backend: Python (FastAPI or Flask)
AI Tools: rembg or other AI-based background removal models
Image Libraries: Pillow, OpenCV (if needed)
Hosting Knowledge: Deployable on Render, Railway, or VPS
Bonus (Optional):

User login + file history
Ability to add watermark or compress image
Chat assistant for basic support (OpenAI API)
Requirements:

Experience working with AI image tools
Ability to integrate AI with a user-friendly frontend
Fast delivery and budget-friendly rates
Budget: Small/startup budget (please quote your best price)
Timeline: 1–2 weeks max
Deliverables: Full working project with source co