I will build custom shopify public app private app with expert shopify api integrations


About this gig
Shopify app half-built by a template, an API integration that breaks on the first webhook, or an App Store submission stuck in rejection?
Most agencies hand Shopify apps to junior devs, and most devs treat Shopify's API like any other REST API. I don't. I build Public and Private apps that pass App Store review, and integrations that hold up under real store traffic not another rushed build that breaks in week two.
- Build custom Shopify Public Apps, ready for App Store submission
- Build custom Shopify Private Apps for internal tools and automation
- Integrate Shopify Admin API, Storefront API, and GraphQL Admin API
- Set up secure OAuth and token handling, done right the first time
- Configure Webhooks without the classic duplicate-fire bug
- Build embedded Polaris UI and admin dashboards
- Connect third-party systems CRM, ERP, and payment gateways
- Fix and rescue broken or rejected app submissions
- Set up n8n or Make.com automations around your Shopify app
- Audit an existing Shopify app or API integration before you scale it
Ready to build or fix your Shopify app? Message me your store URL and goal I'll reply with a clear scope within hours.
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Get to know Chloe
AI Automation Developer Shopify Claude Code n8n
- FromUnited States
- Member sinceSep 2026
- Avg. response time1 hour
Languages
English, French, German, Spanish, Italian
FAQ
Do you build both Shopify Public Apps and Shopify Private Apps?
Yes. I handle custom Shopify app development for both Public Apps (App Store-ready) and Private Apps (internal tools for a single store), depending on what your business needs.
What's included in a Shopify API integration?
Every Shopify API integration I deliver covers Admin API, Storefront API, or GraphQL Admin API setup, secure OAuth authentication, and webhook configuration so your custom Shopify app talks to your store reliably, not just on the first test run.
My Shopify app got rejected by the App Store, can you fix it?
Yes, App Store rejection fixes are one of the most common requests I get. I'll audit your Shopify public app against Shopify's current review requirements and resolve the flagged issues.
Do you build custom Shopify apps from scratch or only fix existing ones?
Both. Whether you need a brand-new custom Shopify app built from zero or an existing Shopify private app debugged and extended, I can take either on.
Can you connect my Shopify store to third-party systems like a CRM or ERP?
Yes. Third-party integration is core to what I do as a Shopify API developer, CRMs, ERPs, payment gateways, and automation tools like n8n or Make.com all connect cleanly into your Shopify app.
What tech stack do you use for Shopify app development?
Node.js, React, Next.js, and GraphQL, built on Shopify's Admin API, Storefront API, and Polaris UI framework with the same stack Shopify itself recommends for custom app development.
Do you handle Shopify webhook setup and debugging?
Yes. I configure Shopify webhooks correctly from the start avoiding the common duplicate-fire and missed-event bugs that break automation in poorly built Shopify apps.
How long does a custom Shopify app take to build?
A simple Shopify private app typically takes 3–7 days. A full Shopify public app with App Store submission support usually takes 10–14 days, depending on the scope of API integration involved.
Do I need to provide store access for Shopify API integration?
Yes, I'll need Shopify Partner or store staff access to set up OAuth and API credentials securely. I'll walk you through exactly what's needed once we scope the project.
Can you build the admin dashboard UI for my Shopify app?
Yes. I build embedded admin dashboards using Shopify's Polaris design system, so your custom Shopify app's UI feels native to the Shopify admin not like a bolted-on external tool.

