Comprehensive Website Development -- 2

I'm looking for an experienced website developer to create a new website from scratch.

Key Requirements:
- Modern, user-friendly design
- Responsive layout for mobile and desktop
- SEO optimization
- Integration with social media
- Secure payment gateway (if e-commerce)

Ideal Skills and Experience:
- Proven portfolio in website development
- Expertise in SEO and UI/UX design
- Strong knowledge of security protocols
- Experience with e-commerce platforms is a plus

Please provide samples of similar work done and a detailed project timeline.