Need Shopify Developer To Create Metafields

I import products from Amazon and aliexpress, but only want to show certain, custom, metafields in my shopify product descriptions. For instance, when an aliexpress product imports these details for a piece of fashion jewelry, I'd like markup written that will import and map those product attributes to my own custom metafields and attributes: Brand Name: ZOSHIBracelets (don't show on my site) Type: Charm Bracelets (on my site: Type: but map attribute to only one of my shop's product types). Gender: Men (change to Audience: "and map to one of my store's gender attributes - which I need set up") Metals Type: Stainless steel (change to Metal Type: and map aliexpress version to 1 of 6 metal types i sell in my store) Origin: CN(Origin) (don't show) Size: About 20cm*1.5cm (on my site: Dimensions: 20cm x 1.5cm) Not sure if this makes sense, but I'd like this data to display in the already built table that displays in my theme product tabs.