Need Shopify expert

Hello everyone.
I am looking for shopify expert who have great experience in discount.
Should have experience in using mintplex.xyz.
In mintplex.xyz, there is a function for using discount code in shopify.
Here can use embed script for banner in shopify.
I need a expert who knows how to generate embed script for custom domain and also how to make it to be worked.
If you know about this well, please apply.
Otherwise don't apply. Will be ignored.
Regards