I will develop or fix API integration stripe API, shopify API, rest API webhook backend

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william_aiwe
W
william_aiwe
William A
develop or fix API integration stripe API, shopify API, rest API webhook backend
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develop or fix API integration stripe API, shopify API, rest API webhook backend

About this gig

Struggling with broken APIs, failed payments, or unreliable integrations?


I help businesses build, fix, and optimize API systems that work smoothly and scale with growth.


I specialize in API integration, REST API development, Stripe API, Shopify API, and webhook setup for modern web applications. Whether you need to fix errors, connect services, or build a backend from scratch, I deliver clean and reliable solutions.


What I can help you with:

  • API integration and development
  • Stripe and Shopify API setup
  • REST API and webhook configuration
  • Debugging and fixing API errors
  • Backend development with PHP, Node.js, Python
  • Automation workflows and data synchronization


Tools I Use

Shopify + Stripe + REST APIs + Webhooks + Zapier + n8n + Make.com + CRMs


What You'll Receive

  • Working API integrations (Stripe, Shopify, REST, Webhooks)
  • Secure backend with smooth data flow
  • Payment automation + webhook setup
  • Bug fixes + error handling
  • Clean, scalable code (PHP, JS, Python, Node.js)
  • Fully tested, ready-to-use system
  • Simple setup guide or explanation


Message me before ordering so we can plan the best API automation solution for your business.



api integration

rest api

webhooks

stripe ap

  • Expertise

    • Algorithms & Data structures
    • Debugging
    • Performance
    • Security
    • Design

  • Programming language

    • HTML & CSS

  • Frontend framework

    • Backbone.js
    • Ember.js
    • Flutter
    • Next.js
    • React.js

  • Backend framework

    • Django
    • CakePHP
    • Express.js
    • FastAPI
    • Node.js

Get to know William A

William A

API Integration Expert, Stripe Shopify REST Webhooks and Backend Developer

  • FromUnited Kingdom
  • Member sinceJan 2026
  • Avg. response time1 hour

  • Languages

    English, German
I help businesses fix website errors, optimize performance, and build reliable API integrations for modern web apps. Specializing in Stripe API, Shopify API, REST APIs, and webhook setup, I create secure, scalable backend systems using PHP, JavaScript, Python, and Firebase or Supabase. From automation workflows to bug fixing and data sync, I deliver clean, efficient solutions designed around your goals. If you need a dependable developer to build, improve, or troubleshoot your system, feel free to reach out for a quick consultation.

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