AMAZON Key-words / PPC management

We are looking for an expert in Amazon Key-word, using Statistical tools like Helium10, Sonar, etc... and more SEO tools like Google Trends.
After defining the Key-words, we need complete EBC wording content, for a ABC Page on Amazon, and some other wordings for our own website,
Perfect english is requested (American market) , Statistic study to provide (Best on Helium10), very good understanding of the product (Benefits, features, market...)
Part-time job which could be full time if good level
Graphics and PS is a plus, but not compulsory,

Regards,
Guillaume