Both on page and off page seo, you should be familiar with eCommerce seo specifically bigcommerce. You will need to be able to complete a full analysis of current seo of the site. You will need to know a little bit of code to be able to add rich snippet to products, check and change H1,H2,H3 tags if necessary.
You need to be able to analyze content and offer suggestions on what can be improved. You will need to be familiar with 404 pages and have knowledge on how to successfully use them to benefit seo.
I require only good quality (no spammy backlinks) You will need to research competitors backlinks and build equal and stronger links for my site. Must have strong knowledge of long tail keywords. Have a focus on building organic traffics. Should have keyword tools/software other than Google analytic. This will be a long term project if you can prove your results. I am looking for proven strategy and implementation.