SEO Expert for Close Collaboration

I'm seeking an individual SEO expert to work closely with me to improve my search engine ranking across Google, Bing, and Yahoo.

Key Tasks:
- On-page SEO: Optimize website content and structure.
- Off-page SEO: Build high-quality backlinks.
- Technical SEO: Enhance site speed, mobile-friendliness, and crawlability.

Ideal Skills and Experience:
- Proven track record in SEO.
- Strong analytical skills.
- Excellent communication for collaboration.
- Up-to-date with SEO trends and algorithm changes.

Please provide examples of past successes and a tailored strategy.