I will build apis and integrate stripe twilio and third party apis

H
hamzakhantanoli
H
hamzakhantanoli
Hamza Khan
build apis and integrate stripe twilio and third party apis
build apis and integrate stripe twilio and third party apis
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build apis and integrate stripe twilio and third party apisbuild apis and integrate stripe twilio and third party apis

About this gig

 I build and fix backend APIs in Node.js Python for SaaS, ecommerce, and agency teams.

 

 What I do

 - Custom REST and GraphQL APIs from scratch (Node, Express, Fastify, NestJS)

 - Third-party integrations: Stripe (subscriptions, Connect, webhooks), Twilio (SMS, voice, WhatsApp), HubSpot,

 Salesforce, Shopify, Airtable, Notion, Sanity, Strapi

 - Middleware: auth (JWT, OAuth, Clerk), rate limiting, logging, error handling, CORS

 - Webhooks: building, receiving, debugging signature failures

 - Bug fixes on broken or slow APIs even ones I didn't build

 - Swagger / OpenAPI docs and Postman collections

 - Database work (PostgreSQL, MongoDB, Redis)

 

 Stack: Node.js, TypeScript, Express, Fastify, NestJS, PostgreSQL, MongoDB, Redis, Stripe, Twilio, AWS, Docker.

 

 How I work

 1. 20-min scope call before you order

 2. Mid-build Loom walkthrough

 3. Source in your repo, deployed to your account, README, Postman collection

 4. 7 days of free fixes after delivery

 

 Message me first if you're not sure some "API jobs" are three jobs. I'll tell you upfront.


  • Expertise

    • Debugging
    • Performance
    • Security
    • Databases
    • Testing procedures

  • Programming language

    • TypeScript

  • Frontend framework

    • Backbone.js
    • Foundation
    • Next.js
    • Nuxt.js
    • React.js

  • Backend framework

    • Django
    • Express.js
    • FastAPI
    • Gin
    • Node.js

Get to know Hamza Khan

Hamza Khan

Experienced Full Stack AI Developer

5.0(10)
  • FromPakistan
  • Member sinceFeb 2020
  • Avg. response time6 hours
  • Last delivery1 year

  • Languages

    English, Hindi, Italian, French
I'm a full-stack developer with 6+ years shipping React, Next.js, and Node.js apps. Most of my work now is AI-first: AI SaaS MVPs, custom chatbots with RAG over your data, and OpenAI / Claude integrations. Stack: JavaScript, TypeScript, React, Next.js, Node.js, Vercel AI SDK, OpenAI API, Claude API, Stripe, Supabase, Firebase. Clean, typed, SEO-friendly code — and you own everything I deliver.

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