I will shopify app developer and build custom private public apps


About this gig
Need Shopify to do something it does not do out of the box? That is an app, and I build them properly.
I am a developer with 7+ years of product work. I build on Shopify's own stack, so your app feels native in the admin and passes review instead of fighting it.
WHAT I BUILD
- Custom apps for a single store, installed without the App Store queue
- Private and Plus apps for organisations with custom checkout logic
- Public apps listed on the Shopify App Store
- Admin GraphQL API work: products, orders, inventory, fulfilment, customers
- Webhooks with retries, plus the mandatory GDPR topics
- Billing API: recurring, usage based and one time charges with trials
- Metafields, Shopify Functions, theme app extensions, checkout UI extensions
- ERP, 3PL, CRM and third party API integrations
THE STACK
React Router (the current Shopify template), Polaris, App Bridge, Node, Prisma, hosted wherever you prefer.
WHAT YOU GET
Full source code, a README, environment setup notes and a Loom walkthrough. The app is yours, no lock-in.
Message me with the workflow you want to automate and I will scope it for free.
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 Jakir
Shopify and WordPress Developer
- FromBangladesh
- Member sinceJan 2018
- Avg. response time1 hour
- Last delivery6 months
Languages
English, Bengali
My Portfolio
Other Website Development Services I Offer
FAQ
What is the difference between a custom app and a public app?
A custom app is installed on one store and skips App Store review, so it ships fast. A public app is listed on the App Store, needs billing, GDPR webhooks and Shopify review, and can be sold to any merchant. I build both.
Do you use Remix or React Router?
React Router, which is what the current Shopify app template uses. If you already have a Remix app, I can maintain it as is or migrate it to React Router as a gig extra.
Who hosts the app and who pays for it?
You do, and it stays in your account. I deploy to whatever you prefer, and I will tell you the realistic monthly cost before we start so there are no surprises.
Will you help me get the app approved on the App Store?
Yes, on Premium. I prepare the listing assets, privacy policy pointers, GDPR webhooks and test instructions, then handle reviewer feedback rounds. Approval timing is Shopify's call, not mine.
Can you add features to an app I already have?
Yes. Send me the repo and I will review it first and tell you honestly whether extending it or rebuilding is the better use of your money.
Do I get the source code?
Always. Full repository, README, environment variables documented and a walkthrough video. No obfuscation and no licence that ties you to me.
How do you handle my store data?
I request the minimum API scopes the feature needs, work on a development store where possible, and sign an NDA on request. I do not keep access after handover unless you ask me to.
How long does a Shopify app take?
A focused custom app is usually 7-10 days. A full multi screen app is 2-3 weeks. A public App Store app is 4-6 weeks including review. I confirm the exact timeline before you order

