SEO in e-commerce. Help?

Hi everyone! I'm Ilia, and I'm researching how SEOs in e-commerce interact with content specialists within their teams, and how they work with the product descriptions in general. If you work with SEO in e-commerce, let me know!

The questions:

1. As an SEO specialist, are you the one writing the product copy, or is it something that the content team is usually doing?

2. How do you make sure that the product descriptions are SEO-optimized? Do you use some external tools or just do it intuitively?

Warm regards