I will integrate stripe payment gateway and webhooks into your nodejs backend

A
aaron219200
A
aaron219200
Aaron Hoang
integrate stripe payment gateway and webhooks into your nodejs backend
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integrate stripe payment gateway and webhooks into your nodejs backend
Full Screen
integrate stripe payment gateway and webhooks into your nodejs backendintegrate stripe payment gateway and webhooks into your nodejs backend

About this gig

Need to take payments, and need it to be right the first time?


I integrate payment gateways into Node.js, NestJS and Express backends: Stripe, and for the Japanese market PayPay, Fincode and SBPS.


WHAT YOU GET

  • Checkout or Payment Intents flow wired into your backend
  • - Webhook endpoint with signature verification and idempotency, so a retried event never charges a customer twice
  • - Subscriptions, refunds and cancellations if you need them
  • - Payment status stored correctly in your database
  • - Everything verified in test mode, plus the steps to switch to live
  • - Source code and a short handover doc

WHY THIS MATTERS

Most payment bugs are not on the checkout page, they are in the webhook: duplicate events, missed events, orders stuck in pending forever. That is the part I handle properly.


EXPERIENCE

4+ years as a backend engineer. I have shipped Stripe, PayPay and Fincode payments on production platforms with real customers, including parking reservation and digital contract systems in Japan.


Tell me your stack and what you are selling, one-off, subscription or marketplace, and I will send you the exact scope and price.

  • Expertise

    • Debugging
    • Security
    • Databases

  • Programming language

    • JavaScript

  • Backend framework

    • Express.js
    • NestJS
    • Node.js

Get to know Aaron Hoang

Aaron Hoang

Backend Engineer for Nodejs NestJS APIs and Cloud

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

  • Languages

    Vietnamese, English
Backend engineer, 4+ years with Node.js, NestJS and Ruby on Rails on GCP and AWS. Right now I keep a live booking platform stable at around 10,000 concurrent users: Redis caching, SQL query tuning, and a database-level fix for double-booking. I have also led a backend team of 5 on a microservices platform, and shipped Stripe, PayPay and Fincode payments. Best fit for: new REST or GraphQL APIs, fixing slow or broken Node.js backends, payment gateways, Cloud Run and AWS deployment. Send me your repo or error log and I will tell you honestly if I can help.

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