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I will develop shopify app, shopify custom app, private app, public app, shopify API
Jason Brooks
About this gig
I will develop a custom Shopify app tailored to your exact business needs whether you need a private app for internal automation, a public app ready for the Shopify App Store, or a seamless API integration with third-party services.
With a solid background in Node.js, React, and Shopify's Admin API / GraphQL, I build scalable, secure apps that follow Shopify's best practices and review guidelines.
What I can build for you:
- Custom private apps to automate workflows & backend processes
- Public apps with embedded admin UI (Polaris) for the App Store
- Third-party API integrations (ERP, CRM, logistics, payment gateways)
- Webhooks, metafields, and custom storefront features
- App fixes, upgrades, and performance optimization
Why work with me?
- Clean, documented code
- Full OAuth & security compliance
- Post-delivery support included
- On-time delivery, every time
Before ordering, message me your requirements so I can recommend the right package and confirm the timeline.
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 Jason Brooks
Jason Brooks
Expert WordPress Webflow Developer UI UX Specialist
- FromUnited States
- Member sinceNov 2025
- Avg. response time4 hours
Languages
English, French, German, Hebrew, Spanish, Italian
Hi, I’m Jason Brook, a professional web developer and UI/UX designer with 5+ years of experience. I specialize in building high-performing digital solutions, ranging from Figma to Webflow conversions and pixel-perfect PSD to HTML development to Woodmart theme customization and professional website cloning. Whether you need a WordPress build or a modern Webflow site, I deliver fast, responsive, and secure results tailored to your goals. Let’s collaborate to elevate your online presence. Send me a message, and let’s get started on your project today!
Other Website Development Services I Offer
FAQ
What type of Shopify app do I need private or public?
If you need an app for your own store only, a private app is faster and more affordable. If you want to sell your app to other merchants on the Shopify App Store, you need a public app. Message me your idea and I will recommend the best fit.
Do you work with my existing store and third-party tools?
Yes. I integrate with ERPs, CRMs, payment gateways, shipping providers, and any API your business relies on. Just share the documentation or API details and I will handle the connection.
How long does it take to build a custom Shopify app?
A simple private app takes 3–5 days. A feature-rich private app with UI takes 7–10 days. A full public app ready for the App Store takes 2–3 weeks. I always deliver on the agreed timeline.
Will my app be secure and follow Shopify's guidelines?
Absolutely. I implement OAuth 2.0 authentication, secure API calls, webhook validation, and data privacy compliance. For public apps, I build to Shopify's exact review standards so you pass certification smoothly.
What happens after you deliver the app?
Every package includes post-delivery support to fix bugs and ensure smooth operation. I also offer affordable monthly maintenance if you need ongoing updates, new features, or App Store compliance checks.
