want to custome code for prepaid discount on shopify store, no access will be given work will be done on anydesk

I am looking for a Shopify developer to custom code a prepaid discount feature for my store. The project requires the following:

Functionality:
- The discount code should offer a percentage discount on the total purchase amount.

Product Application:
- The discount code should apply to all products in the store.

Timeline:
- The project needs to be completed within 1-2 days.

Ideal Skills and Experience:
- Proficiency in Shopify development.
- Experience in custom coding discount features.
- Ability to work remotely using AnyDesk without requiring access to the store backend.

If you have the necessary skills and can deliver the project within the specified timeline, please submit your proposal.