Shopify App

We are looking at setting up an e-commerce sales funnels website / platform. We need a developer or team of developers to create and a running platform such as "carthook" to build our "checkout" experience and what follows. The project task is to: 1 - Develop the system procedure that works with the customer's Shopify store. 2 - Create a custom "Checkout page" 3 - Create "Upsells page": once checkout and payment are done, they get redirected to a defined page and keep shopping 4 - Create afinal overview of the checkout and purchase and "thank you" page The mechanics should be pretty similar to carthook but we are definitely open to user-friendly upgrades and ideas: Our developer has to create a special checkout page + their upsells pages, then the system generates a special tag (they can customise the name of the tag as well) then they put the tag on their product inside Shopify tag area on products they wish to upsell WHAT WE NEED FROM THE FREELANCER(S): . full development costs . development milestones . suggested timeline . at least 1 month of maintaining the back-end development part of the website, so if anything comes up, developers will be able to step in quickly and fix bugs & errors. Please contact us with your proposal If the partnership goes well we'll keep hiring you the maintaining job of the website & also for future projects for this company and other company of ours. Thank you so much.