Multi-User Website Redesign

I need a comprehensive redesign of my multi-user website, with a focus on improving the user experience (UX).

Key areas for improvement:
- Navigation and menu structures
- Forms and data entry
- Loading times and performance

In addition to the redesign, I want to add marketing strategies to enhance the site's reach and engagement.

Ideal Skills and Experience:
- Expertise in UX design
- Proven track record in website performance optimization
- Experience with multi-user website architecture
- Knowledge in implementing effective marketing strategies (SEO, Email, Social Media)

Please provide a portfolio with similar projects.