Responsive Business Site Development -- 2

I'm seeking a skilled web developer to create a fast, responsive business website. The site will primarily be used to sell services.

Key requirements:
- Built using HTML, CSS, and JavaScript
- Professional and modern design
- Mobile optimization
- SEO-friendly
- User-friendly navigation

Ideal skills and experience:
- Proven track record in developing service-based business websites
- Strong portfolio showcasing similar projects
- Knowledge of SEO best practices
- Excellent communication skills

Please provide examples of previous work and an estimated timeline for completion.