I will integrate stripe API, rest API, oauth2, jwt authentication and webhooks

W
william_aiwe
W
william_aiwe
William A
integrate stripe API, rest API, oauth2, jwt authentication and webhooks
Full Screen
integrate stripe API, rest API, oauth2, jwt authentication and webhooks
Full Screen
Full Screen
integrate stripe API, rest API, oauth2, jwt authentication and webhooksintegrate stripe API, rest API, oauth2, jwt authentication and webhooksintegrate stripe API, rest API, oauth2, jwt authentication and webhooks

About this gig

Need a reliable developer for secure API integration, OAuth2, JWT authentication, Stripe, Firebase, or Supabase?


You're in the right place.


I help businesses build secure backend systems that work smoothly in production. Whether you need a new API integration, a payment setup, or help fixing authentication issues, I'll write code that fits your project, is easy to maintain, and wont turn into a headache later.


Services I offer:

  • REST API integration
  • OAuth2 and JWT authentication
  • Stripe payment gateway integration
  • Firebase and Supabase backend setup
  • Webhooks, social login, and SSO
  • Database integration and backend development


Why work with me?

  • Clean, secure, production ready code
  • Clear communication and regular updates
  • Well structured source code
  • Tested before delivery


If you're dealing with broken API requests, login errors, Stripe issues, or backend bugs, I can help.


Message me before ordering so we can discuss the best solution for your project.

  • Expertise

    • Algorithms & Data structures
    • Debugging
    • Security
    • Databases
    • Source control

  • Programming language

    • HTML & CSS

  • Frontend framework

    • Angular
    • Backbone.js
    • Flutter
    • Next.js
    • React.js

  • Backend framework

    • Laravel
    • CakePHP
    • Express.js
    • Next.js
    • Node.js

Get to know William A

William A

Stripe and Shopify API Integration Expert, Webhooks and Backend Developer

  • FromUnited Kingdom
  • Member sinceJan 2026

  • Languages

    English, German, Spanish, French, Italian
I help businesses fix website errors, build API integrations, and improve web app performance for speed and reliability. I specialize in Stripe API, Shopify API, REST APIs, and webhook automation, creating secure backend systems for modern apps. Using PHP, JavaScript, Python, Firebase, and Supabase, I develop, troubleshoot, and automate workflows with clean data sync. If you need a reliable backend or API integration expert to build, fix, or improve your system, I’m ready to help.

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