Multi-Vendor E-Commerce Marketplace

Build a scalable multi-vendor e-commerce marketplace with product catalog management, shopping cart, secure payments via Stripe, order fulfillment tracking, vendor analytics dashboards, and customer review system with fraud detection.

Epics

Features

BDD Scenarios

106

Tasks

172

APIs

System Architecture

pattern

Modular monolith with event-driven communication for order and payment domains

database

PostgreSQL with read replicas for catalog queries, Redis for cart and session state

cache

Redis Cluster for product catalog caching, cart persistence, and rate limiting

Elasticsearch for faceted product search with autocomplete and typo tolerance

payments

Stripe Connect for marketplace split payments with vendor payout management

storage

AWS S3 with CloudFront CDN for product images and vendor assets

auth

JWT with OAuth2 (Google, Apple, Facebook) and vendor-specific API keys for integrations

deployment

Docker on AWS ECS with auto-scaling groups, CloudFront CDN, and multi-AZ RDS

Delivery Blueprint — 7 Epics

Unified authentication system supporting buyers, vendors, and marketplace administrators with role-specific dashboards, OAuth social login, and vendor onboarding verification.

Buyer Registration & Social Login

Frictionless buyer registration with email/password and social OAuth (Google, Apple, Facebook) including address book and payment method management.

Buyer registers via Google OAuthpositive

Given a new buyer clicks 'Sign up with Google'
When they authorize the application through Google OAuth consent
Then an account is created with their Google profile information
And they are redirected to the marketplace homepage with a welcome banner
And a welcome email is sent with account setup tips

+1 more scenario

●Implement OAuth2 flows for Google, Apple, and Facebook with account linking logic for matching emails

●Build registration form with real-time email validation, password strength meter, and CAPTCHA for bot prevention

+2 more tasks

Vendor Onboarding & Verification

Multi-step vendor registration with business verification, bank account setup via Stripe Connect, and marketplace agreement acceptance.

2 scenarios, 4 tasks — unlock to view

Marketplace Admin Console

Administrative dashboard for marketplace operators with vendor management, commission configuration, content moderation, and platform health metrics.

1 scenarios, 4 tasks — unlock to view

Building a marketplace?

We deliver multi-vendor e-commerce platforms with payments and fulfillment — in 2–3 weeks.

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2 features, 9 tasks — sign up to unlock

3 features, 12 tasks — sign up to unlock

2 features, 8 tasks — sign up to unlock

3 features, 12 tasks — sign up to unlock

2 features, 8 tasks — sign up to unlock

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Governance Rules (7)

All payment processing must use Stripe Connect with idempotency keys — no direct card data handling (PCI-DSS compliance)

Vendor payouts must be calculated from settled (non-disputed) orders only with commission and holds applied before transfer

+5 more governance rules — sign up to view

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