Flutter Event Management App

I need a comprehensive event management application built on Flutter, prioritizing the Windows platform.

Core Functionalities:
- Basic e-commerce: Users can browse and purchase event-related items.
- Friends gifting option: Users can gift event tickets/items to friends.
- Pay on approval: Transactions require admin/user approval.

User Interactions:
- Pop-ups for notifications: Alerts for upcoming events, approvals, etc.
- Location-based services: Event suggestions and notifications based on user location.
- User profile management: Customizable profiles with preferences and history.

Technical Requirements:
- Platforms: Windows, Android, iOS
- Backend: PHP, MySQL

Ideal Skills and Experience:
- Proficiency in Flutter
- Experience in building e-commerce and event management apps
- Strong backend development skills in PHP and MySQL
- Familiarity with implementing location-based services and notification systems
- Ability to manage and integrate multiple platforms seamlessly

Looking for a developer who can deliver a user-friendly and efficient app within budget. Please provide a portfolio showcasing similar projects.