Amazon Listing SEO Optimization

I'm looking to optimize my Amazon listing, particularly focusing on keywords and SEO. The main priority is to enhance the backend search terms.

Key Requirements:
- Research and provide effective new keywords for backend search terms
- Improve listing visibility and searchability

Ideal Skills and Experience:
- Proven experience with Amazon SEO
- Strong keyword research skills
- Familiarity with Amazon's algorithm and ranking factors
- Ability to analyze and improve backend search terms

Please provide examples of previous work and results achieved.