Technical SEO Enhancement for Google -- 2

I'm seeking an expert in SEO to specifically focus on improving my website's search engine rankings on Google. The primary goal is to enhance technical SEO aspects, particularly site speed and mobile-friendliness.

Ideal Skills and Experience:
- Proven track record in improving search engine rankings, particularly on Google
- Deep understanding of technical SEO
- Experience in optimizing site speed
- Expertise in enhancing mobile-friendliness of websites
- Familiarity with SEO tools and software
- Excellent analytical skills to track progress and make necessary adjustments

Please provide past examples of your work in your bid. Thank you!