Content Sharing Social App Development

I'm looking to hire an experienced app developer to build a small social networking app focused on sharing content.

Key features:
- Content Sharing: Users can share photos, videos, text posts, and links to articles.
- User Authentication: Implement social media login for user authentication.

Ideal skills and experience:
- Proficiency in mobile app development (iOS and Android)
- Experience with social media integration
- Strong UI/UX design skills
- Knowledge of backend development to support content sharing functionalities

Please provide examples of similar projects you've completed and your estimated timeline for delivery.