I will build nextjs nextjs, ai web app, api backend react developer

J
johsoncornel
J
johsoncornel
JOHN
build nextjs nextjs, ai web app, api backend react developer
build nextjs nextjs, ai web app, api backend react developer
Full Screen
build nextjs nextjs, ai web app, api backend react developerbuild nextjs nextjs, ai web app, api backend react developer

About this gig

Are you struggling to build a scalable Supabase backend, API integration, AI web app, or Nextjs application that works smoothly and securely?


I help startups, SaaS founders, and businesses build powerful web applications using Supabase, Nextjs, React, Firebase, Nodejs, PHP, and modern API development tools.


WHAT I OFFERED

Supabase integration & backend setup

API integration & REST API development

AI web app & OpenAI API integration

Stripe API & payment gateway setup

WordPress API & PHP API integration

Firebase authentication & backend development

Nextjs, React & full stack web application

Nodejs API & backend bug fixing

JSON, XML & third party API integration


TECH STACK

Supabase, Firebase, Nextjs, React, Nodejs, PHP, Stripe API, REST API, PostgreSQL, OpenAI API, TypeScript.


WHY CHOOSE ME

Clean, scalable, secure code

Fast communication

Reliable API troubleshooting

Professional full stack developer


Please contact me before placing your order to discuss your project requirements.

  • Expertise

    • Algorithms & Data structures
    • Debugging
    • Operating systems
    • Databases

  • Frontend framework

    • AngularJS
    • Backbone.js
    • Next.js
    • Nuxt.js
    • React.js

  • Backend framework

    • CakePHP
    • Express.js
    • FastAPI
    • Meteor.js
    • NestJS

Get to know JOHN

JOHN

API Integration Expert, Stripe, Shopify, Oauth2 Zapier and Automation Specialist

  • FromGermany
  • Member sinceMay 2026
  • Avg. response time1 hour

  • Languages

    Afrikaans, German, English, Spanish, Italian
I’m a professional API integration developer specializing in Stripe, Shopify API automation, RESTful APIs, OAuth2, JWT authentication, OpenClaw, webhooks, Zapier, Klaviyo, and custom API connections. I build secure, scalable, and error free backend systems for React, PHP, Laravel, JavaScript, Python, Firebase, and Supabase applications. My focus is clean code, fast delivery, secure payment gateway integration, automation workflows, and seamless end to end API solutions for modern web apps and businesses.

Related tags