Development and deployment of a Shopify app (Portmone + referral system + Nova Poshta)
Description:
We are looking for an experienced Shopify app developer to complete, improve, and deploy our partially implemented custom storefront app.
Current status:
The Shopify app is already set up in development mode.
Some functionality has already been implemented.
Integration with Portmone is partially implemented but requires verification and further development.
Tasks:
Integration with Portmone:
Verify and complete the existing implementation of the Portmone payment system.
Ensure stable operation and full testing before production.
Integration with Nova Poshta delivery service:
Add support for delivery via Nova Poshta API
Automatic loading of branches/parcels at the checkout stage
Ability for customers to choose delivery method in the custom storefront
Generation of TTN and transfer of orders to the personal account of NP (if the key is available)
Referral system:
Implement a referral system where users can invite others and receive bonuses (discounts, coupons, etc.).
Track invitations via unique links or codes.
Display invitation statistics in the user's personal account.
Complete the development of the Shopify app:
Finish the functionality (both front-end and back-end).
Check compatibility with Shopify requirements (even if the app will be private).
If necessary — improve the user interface.
Deployment:
Assist with deploying the app to the production environment.
Configure all necessary webhooks, APIs, and embedded app behavior.
Ideal candidate:
Has experience developing custom Shopify apps (public or private).
Well-versed in Shopify Polaris, REST/GraphQL Admin API, and Embedded App SDK.
Preferably — experience with Portmone or similar payment services.
Understands the principles of building referral programs.
Results:
A fully functional Shopify app ready for use.
Payments via Portmone work correctly.
The referral system is implemented and tested.
Clean, documented code.
Deployment and usage instructions.
In your application, please specify:
Experience in developing Shopify apps (links, screenshots — appreciated).
Estimated project completion timeline.
Questions or clarifications regarding the task description.
We are waiting for a specialist who can successfully complete the project and bring it to production.
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10 days423 USD
605 2 0 10 days423 USD
Hello Alexander, https://insideshop.com.ua/ – we launched this Shopify store with Ukrainian payments, integration of Nova Poshta, a referral system, custom pages, and checkout logic. We handled both front-end and back-end parts. The app was private and works stably.
We also have experience with Shopify Polaris, REST/GraphQL API, webhooks, and embedded app SDK. We have worked with payments via LiqPay and Portmone (including installment payments), as well as automatically creating TTH through Nova Poshta API.
We can help with:
Checking and completing the integration with Portmone
Implementing delivery through Nova Poshta (branches, post terminals, TTH)
…
A complete referral system with unique codes, statistics, and bonuses
Finishing all parts of the app and preparing for deployment
Documentation, instructions, and support during launch
We work in a structured and phased manner. Ready to review code and technical specifications and provide a clear timeline estimate.
When is convenient to discuss the details?
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10 days445 USD
976 4 0 10 days445 USD
Good day!
I am Dmytro, co-founder and developer of KingKongWeb. We work with Shopify and have experience creating custom storefront applications and integrations with payment/delivery services.
What we can do:
• Complete the Portmone integration (payments, stability testing).
• Connect the Nova Poshta API (departments, TTH, delivery selection on storefront).
• Implement a referral system (unique codes, bonuses, statistics).
• Finalize and test the entire Shopify app functionality.
• Prepare and deploy the project to production with documentation.
…
We have experience working with Shopify API (REST, GraphQL), Polaris UI, as well as integrations with Portmone / LiqPay / Nova Poshta.
Can we discuss:
• Current code status (access to repository)?
• Is the app public or private?
• Estimated deadline (you have urgency — can we start immediately)?
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1 day22 USD
874 11 0 1 day22 USD
Good day
My specialization is custom development on Shopify.
I can help with your task
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Kyiv