Social Networking Web App Development

I'm seeking a skilled developer to build a social networking web application.

Key Requirements:
- Use of HTML, CSS, and C#
- Responsive and user-friendly interface
- Secure user authentication and data privacy
- Real-time messaging and notifications
- Profile creation and content sharing features

Ideal Skills and Experience:
- Proven experience in web application development
- Strong knowledge of front-end and back-end technologies
- Familiarity with database management
- Expertise in implementing security protocols
- Prior work on social networking platforms is a plus

Please share relevant past work and experience.