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FintechPaymentsPCI DSSML

Fintech Digital Gateway

Software Development for Digital Gateway Platform

Digital gateway platform simplifying online payments for eCommerce — handling credit cards to digital wallets with PCI DSS compliance, ML-based fraud detection, and multi-currency support.

200K+

Transactions (6 months)

$2.5M

Volume Processed

$1.5M

Seed Funding Raised

99.9%

Uptime

Duration

10 months

Team Size

9 members

Industry

Fintech

Category

Web App

// About the Project

Project Overview

The client is an up-and-coming Fintech player focused on simplifying online payments for eCommerce. They decided to build a digital gateway platform handling different payment methods — from credit cards to digital wallets — while meeting PCI DSS standards.

As a new company entering the Fintech market, the client needed to build a truly reliable platform on par with competitors. The system needed to handle thousands of transactions at once and stay responsive during peak times like Black Friday.

UppLabs took on end-to-end project management and product ownership, designing microservices architecture so each payment method works independently, with ML-based fraud detection that catches fraud in milliseconds.

// Product

What We Built

The client is an up-and-coming Fintech player focused on simplifying online payments for eCommerce. They decided to build a digital gateway platform handling different payment methods — from credit cards to digital wallets — while meeting PCI DSS standards.

As a new company entering the Fintech market, the client needed to build a truly reliable platform on par with competitors. The system needed to handle thousands of transactions at once and stay responsive during peak times like Black Friday.

Services Provided

Software DevelopmentWeb & Mobile DevelopmentProduct Ownership

Technology Stack

Node.jsGoPostgreSQLRedisReact.jsTailwind CSSAWSDockerKubernetesOAuth2JWTAES-256Stripe APIPayPal SDK
Fintech dashboard with transaction analytics

Fintech dashboard with transaction analytics

API management interface

API management interface

// Challenges

Problems We Solved

01

High Volume Transactions

Needed scalable, efficient architecture that could stay responsive during peak times like Black Friday with thousands of simultaneous transactions.

02

Fraud Detection

Required a strong fraud detection mechanism that could identify suspicious transactions in real-time without interrupting the payment experience.

03

PCI DSS Compliance

Non-negotiable compliance requirement since it directly impacts the ability to handle credit card transactions legally and securely.

04

Lack of In-House Management

The client needed a partner who could handle both technical and process ownership, letting the core team focus on business.

// Solutions

How We Delivered

01

Microservices Architecture

Each payment method works independently. Docker for containerization and K8s for orchestration made the system future-proofed for growth.

02

ML-Based Fraud Detection

ML system that learns from transaction patterns and identifies anomalies. Using Redis for quick data access, catching fraud in milliseconds.

03

PCI DSS Certification

AES-256 encryption, OAuth2 for secure logins, JWT tokens for sessions. Passed PCI-DSS certification on the first try.

04

eCommerce Integrations

Developed APIs, SDKs, and plugins for Shopify, WooCommerce, and Adobe Commerce — users can integrate in minutes.

// Tech Stack

Technologies Used

Node.jsGoPostgreSQLRedisReact.jsTailwind CSSAWSDockerKubernetesOAuth2JWTAES-256Stripe APIPayPal SDK

// Services

What We Provided

Software Development
Web & Mobile Development
Product Ownership

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