SEO Optimization for Website and App

I need an SEO expert to improve our search engine rankings on Google. We have some keywords but need assistance with expanding our list.

Key requirements:
- Focus on Google SEO
- Enhance search engine rankings
- Expand existing keyword list

Ideal skills and experience:
- Proven track record in SEO
- Expertise in Google algorithms
- Strong keyword research abilities
- Experience with both websites and Android apps

Please share your strategy and past successes.

Website - www.mymedscheck.com
App - mymedscheck(android)