Do t-shirt mockups for my designs, connect them with Printify, and upload to Etsy

I am looking for a freelancer with experience doing t-shirt mockups who is capable of producing both flat-lay and model mockups. I have specific colors and styles and t-shirt designs. Then, connect with Printify, an on-demand printing and drop shipping platform, to create a seamless integration between our designs and their services. Ultimately, I want to upload the completed designs to our Etsy store, creating engaging and compelling listings that attract potential customers. I also need optimized product descriptions, titles, and tags on Etsy to enhance search visibility and drive traffic to our listings.