Hi,
Firstly I request you to check my freelancer reviews, I do have 8+ years experience on amazon.
Please refer below sample products uploaded by me, I do follow all the amazon policies while listings the products.
https://www.amazon.com/Swift-n-Snug/b/ref=bl_dp_s_web_10599519011?ie=UTF8&node=10599519011&field-lbr_brands_browse-bin=Swift-n-Snug
I always prefer to upload the products using amazon flat files of each category, as it works faster than the manual upload. Only for sell similar products I do add them manually as it requires to fill only few fields.
I do work for all US marketplaces, like Amazon, eBay, NewEgg, Sears, Rakuten, Walmart etc
Managed the below list of tasks on amazon.
1. Inventory upload and listing optimization.
2. Image enhancements.
3. Keywords ranking and improvement.
4. FBA management.
5. Customer support.
6. Returns and refunds management.
7. Feedback and account performance improvement.