WordPress SEO & Comprehensive Website Fixes

I'm in need of a seasoned WordPress expert who can boost my website's SEO and sort out a range of issues affecting its functionality and design.

SEO Requirements:
- Keyword Optimization: I need my site to rank better for relevant keywords.
- Backlink Building: Help me improve my site's authority and visibility.
- Site Speed Improvement: The site currently loads slowly, affecting user experience and SEO.

Website Fixes:
- Broken Links: Identify and repair any broken links throughout the site.
- Design/Layout Issues: Make necessary adjustments to improve the site's design and layout.
- Functional Issues: Diagnose and fix any problems affecting the site's functionality.

Ideal Skills:
- Extensive experience with WordPress.
- Proven track record in SEO, particularly keyword optimization and backlink building.
- Strong web design skills and attention to detail.
- Excellent problem-solving skills to diagnose and fix functional issues.

I look forward to your proposals.