Full-Stack Developer Needed to update dashboard (FastAPI + Next.js AI-powered App)

I have a live restaurant Ecomerce and admin dashboard built with Next.js (frontend) and FastAPI (backend). The core features work, but I need help improving the dashboard.

What I Need
- Clean, modern dashboard UI/UX
- Fix and optimize frontend ↔ backend data flow
- Improve performance and responsiveness
- Update or refactor parts of the frontend if needed

Tech Stack
- Next.js (React)
- FastAPI (Python)
- JWT authentication
- OpenAI API

Deliverables
- Updated dashboard
- Smooth API integration
- Clean, maintainable code
- Short explanation of changes

Looking for someone experienced who can quickly understand the project and deliver a solid, user-friendly dashboard.