Social Media App Development on Android

I need an experienced Android app developer to create a social media application.

Key features include:
- Messaging: Real-time chat functionality.
- Photo Sharing: Upload, comment, and like photos.
- Friend List: Connect and manage friends.

Ideal skills and experience:
- Proven Android development expertise
- Experience with social media app features
- Strong UI/UX design skills
- Familiarity with real-time database management

Please provide a portfolio with relevant projects.