Some experience with ANY of the following of content management system is highly desirable: Magento, Shopify, Wordpress.
Sample responsibilities can include (depending on individual skills. i'm considering breaking out tasks to multiple assistants if necessary):
- managing web stores ( inventory, products, marketing, emails)
- writing SEO rich website content, product descriptions, blog entries, emails
- managing & executing marketing calendar via web and social
- data clean up & uploads
- customer service via email, messages
- formatting html text ( clean up formatting)
- testing websites and use cases ( testing if there are any issues with buying an item, checkout, does this seem confusing to a customer, etc)
- web performance analysis
- social media interaction & management
- image management - formats, cutting to specs, recommendations
- and more
I will be very hands on in the beginning but will encourage you to be proactive in recommending new approaches, objectives and ideas.