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English
$
USD
I will build shopify ecom mvp saas app plugin extension backend api webhook developer
Haty
About this gig
Did your promotion app crash during a high-traffic flash sale or drop real-time order data due to sudden spikes? E-commerce merchants lose massive seasonal revenue when code breaks under pressure. I step in as your custom shopify app plugin extension api backend developer saas webhooks expert to fix infrastructure vulnerabilities.
What I Fix and Build:
- Performance Optimization: Fix memory leaks in custom Remix or Node.js application structures.
- Automated Flows: Implement real-time GraphQL Webhook handlers to secure incoming order data.
- Checkout Customization: Build lightweight Shopify Functions for tiered holiday bundling logic.
- Logistics Pipelines: Connect secure API data pipelines to third-party shipping and ERP servers.
- Webhook Queue Recovery Systems: Build multi-tenant background queue processors to preserve shipping and order payload streams if primary connections lag.
- Fixed critical webhook desync issues preventing automated stock counts during major traffic spikes
- Built background inventory synchronization scripts utilizing the Shopify GraphQL Admin API.
Message me today for a custom quote on large-scope systems or select your package to begin!
Get to know Haty
Haty
Muse Code AI Developer
- FromNigeria
- Member sinceSep 2026
- Avg. response time1 hour
Languages
French, Spanish, Italian, German, English
I’m a full-stack AI developer specializing in Jarvis AI assistants, Claude Code solutions, Shopify apps, MCP servers, AI agents, and business automation. I build intelligent assistants, custom Shopify apps, API integrations, MCP tools, Claude Skills, and automated workflows using modern AI technologies. Whether you need an AI-powered assistant, Shopify automation, or a custom Claude Code solution, I deliver reliable, scalable systems tailored to your business needs.
FAQ
What specific Shopify development environments and frameworks do you use?
I focus heavily on building and fixing the Shopify App backend using Node.js and Remix. I routinely develop custom Shopify Functions and connect them to secure databases like Supabase or cloud scripts using FastAPI.
What precise access permissions or store credentials do I need to share?
You will need to grant developer access to your Shopify Partner dashboard or your Shopify Plus store admin panel. If your package includes payment routing or data sync, I will need secure sandbox access to your database or Stripe logs.
How do you handle my private store API access tokens and secret webhooks safely?
I never request your master admin account passwords. All environment variables, API secret access tokens, and encryption webhook strings are configured directly inside your secure production hosting panel to keep your store data private.
What happens if my app bug or webhook problem is larger than the package I ordered?
If a backend code audit reveals a larger, deep architectural issue, we will simply adjust the scope together. I will explain the system problem in plain English and send a custom gig adjustment request. No hidden development fees will apply.
What is your active policy regarding development code revisions and logic tweaks?
Each tier includes a specific number of revisions to ensure your backend functions exactly as requested. Revisions cover adjusting, testing, or fine-tuning the specific API endpoints or webhooks built inside the order. They do not cover new features.
Who retains the legal intellectual property and code ownership after delivery?
You retain one hundred percent complete ownership of all custom app configurations, database schemas, and background webhook scripts built during the order. Once delivery is accepted, all intellectual code property transfers directly to you.
What happens if my custom private app fails a store review or data sync check?
If your app triggers a system error or validation rejection due to a backend bug I introduced, I will fix that specific error for you immediately. Design theme style preferences or standard Shopify API approval delays are completely outside scope.
What critical real-world variables can impact your development delivery timeline?
Timelines depend entirely on prompt feedback and the immediate availability of external developer environments. Delays in providing API documentation or partner credentials will pause the active coding sprint until access is successfully restored.
What development tasks or design services are completely excluded from this gig?
This service strictly covers custom app backends, database scaling, API scripts, and webhook handlers. I do not design frontend layouts, modify Liquid storefront theme styling, write custom CSS, or manage product collection copy for you.
Do you provide continuous long-term app maintenance or ongoing server monitoring?
This gig delivers a completed, fully operational backend code solution. Continuous daily performance monitoring, server cost coverage, and future api version updates are not included. We can arrange ongoing maintenance through custom milestones.
