Advanced Web Development for SEO Optimization

I need an expert website developer to create a site tailored to my unique needs. The site should include:

- Search functionality: Users should be able to easily search for content.
- Keyword optimization: Enhance the site's visibility and ranking.

The ideal freelancer should have:
- Strong experience in custom CMS development
- Proficiency in SEO and keyword optimization
- Expertise in implementing robust search functionalities

Please provide examples of previous work and any relevant certifications.