Browse categories
Explore
Fiverr Pro
English
$
USD
I will build custom shopify apps, checkout extensions, and API integrations
Ali Jesar
About this gig
Need something your Shopify theme or the App Store can't do? I build it.
5 years in Shopify, 5 apps shipped to the App Store. Production code, not tutorial code.
WHAT I BUILD
- Custom Shopify apps (private or public) on the Admin GraphQL API
- Checkout UI Extensions: custom fields, upsells, dynamic checkout content
- Shopify Functions: custom discounts, shipping rules, payment logic
- API integrations: Shopify to your CRM, ERP, warehouse, or any third-party tool
- Webhooks and backend automation
- Agent-ready storefronts so AI shopping assistants can find and buy your products
- App Store submission support if you plan to publish
HOW I WORK
Message me before ordering with what you want in plain words. I'll tell you what it involves, what it costs, and whether there's a simpler way. I work on existing apps as often as new builds, including code I didn't write. Everything is tested end to end before handoff.
WHY ME
5 published apps means I've been through App Store review, merchant support, and real traffic. That experience goes into every project.
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 Ali Jesar
Ali Jesar
Ruby on Rails and Shopify Developer, AI Chatbots, Agents and LLM Integrations
- FromPakistan
- Member sinceDec 2015
- Avg. response time1 hour
Languages
English
Ruby on Rails developer, 7 years in production. I build and fix Rails and React apps, APIs, and the things that break under load.
I add AI that actually does something: chatbots trained on your data, assistants that take actions, Claude or ChatGPT wired into your app. Current focus is agentic commerce, making stores discoverable and shoppable by AI agents.
5 of those years were in Shopify and BigCommerce: 5 apps shipped to the Shopify App Store, plus Functions, checkout extensions, and API integrations.
Tell me what you need in plain words and I'll tell you what it takes and costs.
My Portfolio
FAQ
Do you build public apps for the Shopify App Store?
Yes. Five are live there. I can take you from build through review approval.
What's the difference between a checkout extension and a Function?
Extensions change what the buyer sees at checkout (fields, upsells). Functions change the logic underneath (discounts, shipping, payment). Most projects need both.
Can you connect Shopify to a tool that isn't on the App Store?
Yes, that's most of my integration work: CRMs, ERPs, warehouses, custom systems, via the Admin API and webhooks.
My project is big or complicated. Can you still help?
Yes. Message me first so I can scope it. Large builds get a custom quote instead of a standard package.
Do you sign an NDA?
Yes, before you share any store access or code.
