Extreme Marketplace SEO Expert Needed

I need an extreme expert in SEO for a national e-commerce website where users can transact. The primary goal is to improve our search engine ranking.

Key Requirements:
- On-site and off-site SEO optimization
- Proven experience in marketplace SEO
- Ability to build high-quality backlinks
- Expertise in technical SEO, content optimization, and keyword strategy

Ideal Skills:
- Proven track record in SEO for large-scale e-commerce sites
- Strong analytical skills
- Up-to-date with the latest SEO trends and algorithm updates
- Excellent communication skills

Please provide case studies or examples of past successes in your bids.