Développement webside + PWA (Progressive Web App) with AI Integration

We are looking for an experienced development team to create the IAMeetYou website, including a fully functional Progressive Web App (PWA). This platform is a dating site with AI-based interaction, user profiles, subscription levels, and a compatibility test system.

Main Requirements :
• Full website development (front-end + back-end)
• PWA implementation (responsive, mobile-first)
• AI integration via OpenAI API (chat assistant)
• User registration with photo verification, date of birth, location
• Subscription and payment system (Stripe/PayPal)
• Compatibility test system (questions, scoring, match display)
• Multilingual support (FR, EN, ES, PT, DE, KO)
• Secure architecture and GDPR compliance
• Admin dashboard for managing users, subscriptions, and content

Delivery & Milestones :
• MVP website + PWA fully functional
• Beta testing phase with 10 testers before validation
• Bug fixes included before final payment
• Administrator profile free for life for ongoing platform testing

Skills required :
• Front-end: React, Next.js, Tailwind
• Back-end: Node.js / PHP / MySQL
• PWA development
• API integration (OpenAI)
• Payment gateway integration
• Security and performance optimization

Budget: To be discussed based on delivery time and scope.
Please provide:
1. Relevant portfolio examples (PWA + AI integration)
2. Estimated timeline for MVP delivery
3. Your preferred milestone structure