Development and deployment of a Shopify application (Portmone + referral system + Nova Poshta)
Description:
We are looking for an experienced Shopify app developer to complete, enhance, 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 has already been partially implemented but requires verification and refinement.
Tasks:
Integration with Portmone:
Verify and complete the existing implementation of the Portmone payment system.
Ensure stable operation and complete testing before production.
Integration with Nova Poshta delivery service:
Add support for delivery through Nova Poshta API
Automatic loading of branches/parcel lockers at the checkout stage
Ability for the customer to choose the delivery method in the custom storefront
Generation of shipping documents and transfer of orders to the Nova Poshta personal account (if the key is available)
Referral system:
Implement a referral system where users can invite others and receive bonuses (discounts, coupons, etc.).
Track invitations through unique links or codes.
Display referral statistics in the user's personal account.
Completion of Shopify app development:
Finalize functionality (both front-end and back-end).
Check compatibility with Shopify requirements (even if the app will be private).
If necessary, enhance the user interface.
Deployment:
Assist with deploying the app to the production environment.
Set up all necessary webhooks, APIs, and behavior of the embedded app.
Ideal candidate:
Has experience in developing custom apps for Shopify (public or private).
Well acquainted with Shopify Polaris, REST/GraphQL Admin API, and Embedded App SDK.
Preferably has experience integrating with Portmone or similar payment services.
Understands the principles of building referral programs.
Results:
A fully functional Shopify app ready for operation.
Payments through Portmone work correctly.
The referral system is implemented and tested.
Clean, documented code.
Instructions for deployment and usage.
In your application, please specify:
Experience in developing Shopify apps (links, screenshots are welcome).
Estimated timelines for project completion.
Questions or clarifications regarding the task description.
We are waiting for a specialist who can successfully complete the project and bring it to production.
-
605 2 0 "Hello, Oleksandr
We have experience specifically in the development and customization of Shopify apps and have worked with similar integrations:
https://trellify.com/uk – Shopify store with custom functionality, integrations with local payment and logistics services
https://optimeal.com/products/optimeal-chicken-turkey-recipe-tender-morsels-in-gravy-for-adult – custom modules, payment and delivery integration
https://insideshop.com.ua/ – e-commerce with an advanced cart, integrations, and multilingual support
…
What we can do for your project:
Portmone – we will complete the integration, test all scenarios (successful/unsuccessful payment, returns, webhooks)
Nova Poshta API – automatic loading of branches/parcel lockers, selection of delivery method, generation and transmission of shipping documents
Referral system – unique links/codes, discounts or coupons, statistics in the personal account
Compatibility check with Shopify requirements, optimization of front-end / back-end
Deployment of the app to production with complete documentation and instructions
Cost of work – from $20/hour, we can estimate the timeline after a brief audit of the current code.
Would it be convenient if I prepare a step-by-step plan for completing the project with deadlines for each stage right away?"
Current freelance projects in the category Online Stores & E-commerce
Looking for a specialist in WordPress / WooCommerce automation
143 USD
Looking for a specialist who can help set up automation for filling product cards in WooCommerce using Make.com, N8N, Zapier, or similar services.Task We have an online store on WordPress + WooCommerce in different languages. It is necessary to automate the creation and filling… Enterprise Resource Planning (ERP), Online Stores & E-commerce ∙ 11 hours 58 minutes back ∙ 28 proposals |
Restore TikTok Ads optimization for the goal "Purchase" (Web Conversions)
67 USD
Context An online store for women's clothing (UA, site on Horoshop). TikTok Ads advertising account — UA / UAH. Until ~June 10, 2026, shopping campaigns were running steadily (1500–1900 ₴/day, 5–7 conversions/day). From June 10–11, campaigns with the goal "Purchase"… Online Stores & E-commerce, Social Media Advertising ∙ 2 days 22 hours back ∙ 13 proposals |
Full transfer of the website from the .com.ua domain to .uaIt is necessary to perform a complete transfer of the online store to OpenCart from the domain .com.ua to .ua turnkey. All files, the database, products, customers, orders, templates, paid modules, modifiers, and integrations need to be transferred. Some licenses may be tied to… Online Stores & E-commerce, Website Maintenance ∙ 2 days 23 hours back ∙ 26 proposals |
Registration in Google Merchant Center and Smart Advertising Campaign Performance Max (PMax)Registration in Google Merchant Center and setting up a smart advertising campaign Performance Max (PMax), Google Ads. Website on Prom.ua Please only those who have relevant experience in setting up and unlocking Merchant and Ads Online Stores & E-commerce, Contextual Advertising ∙ 3 days 11 hours back ∙ 27 proposals |
Shoe website on KhoroshopIt is necessary to set up an online shoe store on the Khoroshop platform. Main task: Create a ready-to-sell store with automatic product updates from suppliers via EasyDrop XML exports. Catalog structure Create main categories: Men's shoes Women's shoes Set up brands as a… Online Stores & E-commerce ∙ 4 days 13 hours back ∙ 27 proposals |