Optimize WordPress Site Speed

I'm looking for an experienced WordPress developer to significantly increase the loading speed of my website.

Key tasks include:
- Optimize images
- Minify and combine CSS/JavaScript files
- Clean up and optimize the database
- Set up caching (currently not using any plugins)
- Enable lazy loading for images

Ideal skills and experience:
- Proficiency in WordPress
- Strong knowledge of website performance optimization
- Experience with caching plugins
- Familiarity with lazy loading techniques
- Ability to deliver measurable improvements in loading speed

Please provide examples of similar work done and expected timelines.