I will do shopify API integration automation and custom app development


About this gig
Tired of manual store management or restricted by generic apps?
To scale an e-commerce business efficiently, custom API architecture and automated workflows are essential. I build clean, reliable backend solutions that connect your Shopify store with third-party software, automate repetitive tasks, and extend your store's native functionality.
What I Offer:
- Custom App Development: Tailored private apps built specifically for your store's logic.
- API Integration & Automation: Connecting CRMs, ERPs, inventory systems, and payment gateways via GraphQL and REST Admin APIs.
- Webhooks & Data Sync: Real-time event triggers and data synchronization for products, orders, and customer records.
- Custom Storefront Solutions: Leveraging Storefront API for custom buyer experiences.
Why Choose Me?
- Reliability: Secure data flow and robust error handling.
- Clear Communication: Regular progress updates from design to deployment.
- Clean Code: Built strictly following Shopify rate-limit and access-scope guidelines.
Ready to automate your workflow?Please send a message with your project details before placing an order so we can outline the best strategy!
Get to know Werner J.
Reliable Website Developer for Small Businesses
- FromUnited States
- Member sinceMar 2026
- Avg. response time3 hours
- Last delivery1 week
Languages
English, French, Italian
My Portfolio
FAQ
Do you build custom private apps or public apps?
I specialize in custom and private apps built exclusively for your store's internal operations. If you need a public app for the Shopify App Store, message me first to discuss the scope.
Which Shopify APIs do you work with?
I work with GraphQL Admin API, REST Admin API, Storefront API, and Shopify Webhooks depending on what offers the best speed and reliability for your project.
Can you integrate Shopify with third-party software like CRMs or ERPs?
Yes! I can connect your store with external platforms, custom databases, or third-party tools to automatically sync inventory, orders, and buyer data.
What happens if Shopify updates its API version in the future?
I write clean, modern code using current API specs. If you need long-term maintenance or future updates after delivery, I offer ongoing support services.
Can you fix errors in an existing Shopify app or API script?
Yes! If your current integration has authentication issues, rate-limit bugs, or sync failures, I can debug and resolve the issue.

