Flutter Messaging System Enhancement

I have a college social media application built in Flutter. I need a developer to enhance the messaging system.

Key requirements:
- Add real-time chat, group chat, and media file sharing.
- Design improvements with custom emojis/stickers.

Ideal skills and experience:
- Proficiency in Flutter development.
- Experience with real-time messaging applications.
- Strong UI/UX design skills for custom emojis/stickers.

Looking for someone who can deliver high-quality work efficiently.