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I will build custom shopify app, API integration, or headless store
Ghanashyaam
About this gig
Generic Shopify apps slow down your store and rarely do exactly what you need.
When your e-commerce brand scales, you need custom infrastructure. I build bespoke Shopify Apps and API integrations that solve complex business logic without bloating your store's performance.
What I Build:
- Private Shopify Apps for inventory, ERP, or CRM syncing (Node.js/Prisma)
- Custom API endpoints and Webhook listeners
- Public Shopify Apps ready for the Shopify App Store
I do not use cheap templates. I write clean, highly scalable code. Please message me with your exact requirements before ordering so we can scope the architecture correctly.
Get to know Ghanashyaam
Ghanashyaam
Shopify, AI and Saas Engineer
- FromIndia
- Member sinceAug 2026
- Avg. response time1 hour
Languages
English, Hindi
I am a SaaS & E-commerce Engineer specializing in Headless Shopify, Next.js architecture, and AI integrations. I partner with founders to build high-performance revenue engines.
My Expertise: • Headless Shopify: Blazing-fast Next.js storefronts. • AI SaaS: Platforms driving automated insights. • PWAs: Highly responsive web applications.
Tech Stack: Next.js, React, Node.js, Prisma, PostgreSQL, Shopify, OpenAI.
With 5+ years of enterprise-grade infrastructure experience, I operate asynchronously. You provide the spec, I deliver clean code. Send me a message to get started.
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FAQ
Will this custom app slow down my store's loading speed?
No. Generic public apps slow down your store because they load bloated JavaScript on every page. I build custom, highly-optimized backend infrastructure that strictly executes only when needed, preserving your 100/100 Core Web Vitals.
Can you integrate Shopify with my external ERP, CRM, or warehouse?
Yes. This is my specialty. I can build a seamless API bridge between Shopify and your external software (like NetSuite, Salesforce, or custom inventory management systems) so your data syncs in real-time.
Do you help with submitting the app to the Shopify App Store?
Yes! If you purchase the Premium package (Public App Store Ready), I ensure the codebase strictly follows Shopify's mandatory OAuth, billing API, and design guidelines to guarantee a smooth approval process.
Who owns the code for the private app?
You own 100% of the source code. For private apps, I will transfer the entire GitHub repository and hosting environment (AWS/Vercel) over to you upon completion.
Do you provide support after the app is installed?
Yes. The Standard and Premium packages include a 90-day warranty. If any edge-case bugs appear or Shopify updates their API within those 90 days, I will patch the code at absolutely no extra cost to you.
