What are the biggest skills to have to become a “e-commerce specialist” and get paid?

Hello, I currently work as an e-commerce assistant for a small company and enjoy the e-commerce industry, but it seems to me that all the jobs out there are paid low (Indeed at least).

What skills should I work on in order to get the higher paying jobs? It’s frustrating because the last company I worked for paid me pretty low and I worked there for 5 years doing what’s more of “data entry” stuff like filling out spreadsheets and uploading items onto Amazon, Wayfair, Walmart, etc. I also create the listing titles, bullet points and descriptions and edit their photos too.

I am slowly wanting to head towards e-commerce marketing, so that’s something I can probably build off of. Like PPC.

Any other suggestions or recommendations?

Thanks In advance!