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I will build a custom shopify app, custom app installation and integration, shopify api
Hugo Fournier
About this gig
Need a Shopify store that does more than the default theme allows? I build custom Shopify apps and integrations tailored to your exact business workflow no templates, no shortcuts.
What I offer
Custom Shopify app development (public or private/custom apps)
Shopify API integration (REST & GraphQL) for products, orders, inventory, customers, and more
Custom app installation and configuration on your store
Connecting Shopify to third-party tools (ERPs, CRMs, POS systems, shipping, accounting software
Webhook setup for real-time data sync
Metafields and metaobjects setup for custom data structures
App troubleshooting, debugging, and performance optimization
Ongoing support and maintenance after launch
Why work with me
Deep experience with the Shopify Admin API, Storefront API, and Shopify CLI
Clean, well-documented, scalable code
Clear communication and realistic timelines
Solutions built around your workflow not a one-size-fits-all app
Whether you need a brand new custom app built from scratch, an existing app installed and configured correctly, or a complex integration connecting Shopify to your other business tools, I can help you get it done right.
Respect third-party rights
Please be aware that it is against Fiverr's policies for sellers to include themes, templates, or any other elements that infringe third-party rights or applicable laws in the delivered work. Read more about in our Guide to Responsible Digital Creation.
Get to know Hugo Fournier
Hugo Fournier
SHOPIFY APP
- FromFrance
- Member sinceJul 2026
Languages
French, English, German, Italian
As a dedicated Shopify App Developer, I help businesses extend the power of Shopify with custom, high-performance applications built to solve real business challenges. Whether you need a private app, a public Shopify app, API integration, custom functionality, or automation, I deliver secure, scalable, and user-friendly solutions tailored to your business goals.
Other Website Development Services I Offer
FAQ
What information do you need to get started?
I need your project requirements, Shopify store URL, the features you want, and any API or third-party service you want to integrate. If needed, I'll guide you through the rest.
Do you develop both private and public Shopify apps?
Yes. I develop both private and public Shopify apps tailored to your business requirements and Shopify's development standards.
Can you integrate third-party APIs into my Shopify app?
Absolutely. I can integrate payment gateways, CRM systems, shipping providers, inventory tools, AI services, and other third-party APIs.
Will my Shopify app be secure?
Yes. I follow Shopify best practices and build secure, scalable, and reliable applications with clean, maintainable code.
Can you fix or update an existing Shopify app?
Yes. I can troubleshoot bugs, add new features, optimize performance, and update your existing Shopify app.
Do you provide support after delivery?
Yes. I provide post-delivery support to ensure your app works correctly and to help resolve any issues related to the delivered project.
Why should I choose your service?
I focus on clean code, secure development, fast communication, on-time delivery, and building Shopify apps that are reliable, scalable, and tailored to your business goals.
