Shopify Migration with Stripe & Affirm

Job ID: 40357786

Budget: $3,000 – $5,000 USD

I currently run a Sharetribe marketplace built with React and Node that relies on Stripe, Affirm, and UPS integrations. It is time to relocate everything to Shopify while keeping the core functionality intact, especially the payment side.

The top priority is carrying over the existing Stripe and Affirm integrations so customers can keep checking out exactly as they do today. I am not certain whether our flows are fully standard or include custom logic, so I will need your advice on what has to be rebuilt versus what can be handled with native Shopify, custom apps, or middleware.

You will get full access to the present codebase and API keys so you can map each endpoint and webhook to its Shopify counterpart. If there are smarter ways to streamline the setup inside Shopify (e.g., consolidated payment apps, Shopify Scripts, or Flow), please propose them.

Deliverables
• A Shopify store configured to mirror current functionality
• Stripe & Affirm payment flow implemented, tested, and ready for production
• Written walkthrough of any custom payment logic, apps, or scripts created
• Handover session to show how to manage and extend the new setup

If you have experience migrating marketplaces, feel comfortable dissecting existing React/Node code, and know the intricacies of Shopify’s payment ecosystem, I’d like to hear how you would approach the transition and an estimated timeline.