Mastermind Work Platform Development

I'm looking for an experienced developer to create a social networking website and app called "Mastermind Work." The platform should include:

Key Features:
- Chat functionality
- User profiles
- Activity feeds

Integrations:
- Analytics tools

Ideal Skills and Experience:
- Strong background in developing social networking platforms
- Proficiency in integrating analytics tools
- Experience with both website and mobile app development
- Knowledge of user-centric design principles

Please provide samples of previous work. Looking forward to your bids!