I will build advanced api integration, webhook, oauth, jwt, firebase and supabase api

R
rafael_miller
R
rafael_miller
Rafael
build advanced api integration, webhook, oauth, jwt, firebase and supabase api
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build advanced api integration, webhook, oauth, jwt, firebase and supabase api

About this gig

Hey, If your APIs are not working properly, webhooks keep failing, or your systems are not connected the way they should youre losing time, data, and revenue.


I help businesses build advanced API integrations and backend systems that are fast, secure, and scalable.


Whether you're running a SaaS, eCommerce store, or automation workflow, I will turn your idea into a reliable, production-ready system.


WHAT I CAN BUILD FOR YOU:

  • Advanced API integration (REST, GraphQL, third-party APIs)
  • Webhook systems for real-time data syncing
  • OAuth & JWT authentication (secure user access control)
  • Firebase & Supabase backend integration
  • Payment gateway integration (Stripe, PayPal, subscriptions)
  • CRM & workflow automation (Zapier, n8n, custom logic)
  • API debugging, fixing & performance optimization


️WHAT MAKES MY WORK DIFFERENT:

  • Clean, scalable API architecture
  • Secure authentication & authorization (OAuth, JWT)
  • Idempotent webhook handling (no duplicate events)
  • Error handling, retries & logging system
  • High performance & optimized API response time
  • Production-ready deployment support


Message me first with your idea, and I'll help you define the best approach for your system.

  • Expertise

    • Debugging
    • Performance
    • Security
    • Design
    • Databases

  • Frontend framework

    • Flutter
    • Next.js
    • React.js
    • Tailwind CSS
    • Vue.js

  • Backend framework

    • Express.js
    • FastAPI
    • Flask
    • NestJS
    • Node.js

Get to know Rafael

Rafael

Senior Software Developer, API Integration, and AI Automation Expert

  • FromUnited States
  • Member sinceMay 2026
  • Avg. response time1 hour

  • Languages

    English
Hi, I’m Rafael. I help businesses automate, scale, and grow with smart software solutions. I specialize in API integrations, AI automation, CRM workflows, payment gateways, and custom web apps that save time, fix broken systems, and increase revenue. From Stripe, Twilio, WhatsApp API, Shopify, WordPress, n8n, Zapier, Make.com, Firebase, and Supabase, I build clean, reliable systems that work. If your tools don’t connect, leads are slipping away, or manual work is slowing growth, I’m here to solve it fast. Message me today and let’s build something powerful.

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