Social Networking Android App Development

I'm looking for an Android app developer to create a social networking app with a primary feature being a news feed.

Key Requirements:
- Experience in Android app development, particularly for social networking
- Proficiency in implementing user profiles and a news feed system
- Ability to design a simple, intuitive interface
- Skills in ensuring app security and user data protection

The news feed should support text posts only. The ideal candidate will have a strong portfolio of similar projects, and be able to provide references from previous clients.