WordPress On-Page SEO Optimization & whatsapp extenension

I'm looking for an experienced SEO specialist to improve my website's search engine rankings. The site is built on WordPress.

Key tasks include:
- Correcting or optimizing title tags and meta descriptions
- Enhancing overall on-page SEO
- Integrating a WhatsApp link for quick AI responses

Ideal Skills and Experience:
- Proven expertise in WordPress SEO
- Strong knowledge of SEO best practices
- Experience with WhatsApp integration on websites
- Ability to deliver measurable improvements in search rankings

Please provide examples of previous work and expected timelines.