Browse categories
Explore
Fiverr Pro
English
$
USD
I will develop a custom shopify app with API integrations
Umair Hassan
About this gig
Looking for a Shopify app developer to build a custom solution for your store?
I develop custom Shopify apps, integrations, and automation solutions tailored to your business requirements. Whether you need a private/custom app, third-party API integration, product or order automation, custom functionality, or an existing Shopify app fixed, I can help.
What I Offer:
- Custom Shopify app development
- Shopify Admin API integration
- Product, order & customer data sync
- Third-party API integrations
- Custom admin dashboards
- Shopify app extensions
- Checkout & cart functionality
- Payment & CRM integrations
- Subscription integrations
- Shopify Flow automation
- Existing Shopify app bug fixing
- App upgrades & performance optimization
Why Choose Me?
- Extensive Shopify development experience
- Clean & scalable code
- Secure API integrations
- Clear communication
- Reliable delivery
- Post-delivery support
Tech Stack: Shopify | Liquid | React.js | Node.js | JavaScript | TypeScript | GraphQL | REST API | Webhooks | MySQL | MongoDB
From a simple API integration to a complete custom Shopify application, I can build a solut
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 Umair Hassan
Umair Hassan
React JS and Node JS Developer
- FromPakistan
- Member sinceNov 2025
- Avg. response time8 hours
Languages
English
Hi, I’m a React JS and Node JS Developer specializing in modern, fast, and scalable web applications. I build responsive frontends and powerful backends using React JS, Node JS, Express JS, MongoDB, Next JS, JavaScript, and TypeScript. My expertise includes MERN Stack development, REST APIs, API integrations, SaaS applications, admin dashboards, authentication, payment integrations, bug fixing, and performance optimization. I focus on clean code, reliable delivery, and solutions built around your business needs.
My Portfolio
Other Website Development Services I Offer
FAQ
What type of Shopify apps can you develop?
I can develop custom Shopify apps for product management, order processing, inventory, customer workflows, automation, dashboards, third-party integrations, subscriptions, and other custom business requirements.
Can you integrate third-party APIs with Shopify?
Yes. I can connect Shopify with CRMs, payment services, fulfillment systems, external databases, marketing platforms, and other REST or GraphQL APIs.
Can you work on my existing Shopify app?
Yes. I can troubleshoot bugs, add new features, update APIs, improve performance, fix webhooks, and extend existing Shopify applications.
Do you work with Shopify REST and GraphQL APIs?
Yes. I work with Shopify APIs, including GraphQL, webhooks, authentication, products, orders, customers, inventory, and other supported Shopify resources.
Can you build a Shopify admin dashboard?
Yes. I can develop custom app interfaces and dashboards using React and Shopify-compatible technologies based on your requirements.
Can you create Shopify app extensions?
Yes. I can develop app extensions and custom functionality where supported by Shopify's current APIs and platform capabilities.
Can you integrate Shopify with a CRM or external system?
Yes. I can build data synchronization between Shopify and CRMs, fulfillment systems, custom APIs, databases, and other platforms.
Can you automate Shopify processes?
Yes. I can implement webhooks, scheduled jobs, Shopify Flow integrations, and custom automation for products, customers, orders, inventory, and other workflows.
Do you provide source code?
Yes. Source code can be provided according to the agreed project scope and package.
Should I contact you before placing an order?
Yes. Shopify app requirements can vary significantly, so please contact me first. I will review your requirements and recommend the appropriate package or custom offer.
