Pay Via Stripe

I've a membership website that has been developed to accept Stripe payment, but I need few things to be addressed to make it ready for real world marketing. I can upload files in a day or two to help understand the details... I am looking for someone with strong knowledge and experience in creating codes to create new and different payment forms, coupon codes, discounts, with the flexibility for the site admin to edit and create the prices whenever needed. Please send info, only if you have some past experience in such work. Thanks!