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Case study · Payment Gateway / FinTech Platform

DoPay Payment Gateway

A modern customer-facing payment gateway web application for onboarding, creating payment flows (including payment links), and processing Stripe-based payments with a secure backend API.

Payment GatewayStripeNext.jsNode.jsExpress.js
DoPay Payment Gateway by Touseef Abid — Payment Gateway / FinTech Platform project

Timeline

February 2026

Shipped

March 17, 2026

Role

Touseef Abid

Focus

Full-Stack Development

01 — Overview

What we built

DoPay is a full-stack payment gateway web application built to help businesses and users accept payments through a fast, responsive interface.

  • DoPay is a full-stack payment gateway web application built to help businesses and users accept payments through a fast, responsive interface.
  • The platform focuses on the customer-facing experience—onboarding, initiating payments, and managing payment-related actions—while a secure backend powers authentication, payment intent/checkout creation, webhook verification, and transaction state handling.
  • Built with modern web tooling, DoPay provides a clean UI, smooth navigation, and production-ready structure for extending payment features over time.

02 — Challenge

The hard parts

  • Ensuring secure and reliable payment processing with correct transaction state management and strict server-side handling of sensitive keys.
  • Implementing webhook verification to keep payment statuses accurate.
  • Delivering a smooth UX for onboarding and payment flows while maintaining performance and security best practices.

03 — Gallery

Screens & moments

DoPay Payment Gateway screenshot 1 — Touseef Abid portfolio
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DoPay Payment Gateway screenshot 2 — Touseef Abid portfolio
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DoPay Payment Gateway screenshot 3 — Touseef Abid portfolio
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DoPay Payment Gateway screenshot 4 — Touseef Abid portfolio
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04 — Solution

How it came together

Built a Next.js frontend for the customer experience and a Node/Express backend API for authentication and payment processing. Integrated Stripe for payment flows and implemented secure webhook handling to validate events and synchronize payment states. Kept secrets on the backend, used environment-based configuration, and structured the system for clean separation between UI and payment logic.

05 — Results

What shipped

DoPay delivers a solid payment gateway foundation with a modern customer-facing web app and a secure backend capable of handling Stripe payments and webhook-driven status updates. The project is structured to scale into additional payment features, reporting, and operational capabilities as needed.

06 — Scope

Services delivered

Full-Stack DevelopmentPayment Gateway Integration (Stripe)Frontend Development (Next.js)Backend API Development (Node/Express)

Like this build?

Built by Touseef Abid — frontend, full-stack, and product-minded e-commerce work.

Visit DoPay Payment GatewayMore projects