You will have to develop the website.
You'll have to do the marketing on Instagram and Facebook as well as in SE. Which includes creating posts and SMM.
Bring ideas to the table. And give decent pieces of advice.
Also, you'll have to know how to do SEO or find somebody who will be able to do SEO for Google and Yandex.
I hope to work with you for a long long time so please, provide a decent price.