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E-Commerce & CMS

Online Marketplace Development Services

Online Marketplace Development

Quecko builds custom, multi-vendor e-commerce marketplaces engineered for scale. From intuitive vendor onboarding dashboards and automated product moderation systems to complex multi-party payment split engines and real-time transaction processing, we build the software that powers next-generation marketplace platforms.

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400+clients across 20+ countries
$300M+in funds generated
250+products built
150+engineers worldwide
400+clients across 20+ countries
$300M+in funds generated
250+products built
150+engineers worldwide
400+clients across 20+ countries
$300M+in funds generated
250+products built
150+engineers worldwide
400+clients across 20+ countries
$300M+in funds generated
250+products built
150+engineers worldwide
What We Build

Comprehensive Marketplace Engineering

01

Modular Multi-Vendor Architecture

Designing backend systems that cleanly isolate vendor data, inventories, and custom rules, while presenting a unified storefront catalog.

02

Unified Multi-Vendor Checkout

Engineering checkout funnels that allow customers to buy from multiple vendors in one transaction, automatically split into separate vendor orders.

03

Automated Payment Splits (Stripe Connect)

Implementing payment engines to process payouts, calculate platform commissions, and route funds to vendors securely.

04

Vendor Management Dashboards

Developing intuitive vendor portals for managing inventory, tracking orders, editing shipping parameters, and analyzing sales performance.

05

Automated Catalog Moderation

Building review pipelines using image analysis and keyword scanning to auto-moderate listings before publishing.

06

Flexible Shipping & Logistics Engines

Custom calculations to handle shipping fees across multiple vendor locations, routing orders to carriers (FedEx, UPS) automatically.

The Challenge

Building a marketplace is not just building a store. It's building an entire economy.

A single-merchant store is straightforward: one seller, one catalog, one checkout. A multi-vendor marketplace is exponentially more complex. It requires robust data boundaries where vendor inventories are securely isolated, yet checkout remains single and unified for the customer. It requires onboarding verification pipelines (KYC), automatic payment split engines, shipping calculation rules across multiple warehouses, and automated catalog moderation to prevent illegal or low-quality listings. Attempting to build this with generic plugins leads to performance bottlenecks and transactional discrepancies. Quecko builds custom marketplace platforms from the ground up, utilizing modern modular architectures, secure payment splits, and scalable database backends.

Execution Blueprint

From Day 1 to Day 120: What Marketplace Execution Looks Like

01Day 1–15

Discovery & Architecture

Visual wireframing, mapping database schemas, detailing commission structures, and planning payment flows.

02Day 16–60

Database & Vendor Portal Build

Creating isolated databases, building vendor dashboards, and developing catalog management modules.

03Day 61–90

Unified Checkout & Payouts

Integrating Stripe Connect, building the checkout flow, and implementing automated payout splits.

04Day 91–120

Moderation & Launch

Implementing catalog review tools, load testing under simulated checkout surges, verifying financial ledgers, and deployment.

Technology

Technologies We Master

Tools, frameworks, and protocols we use to build secure and scalable solutions.

Languages

Node.jsNode.js
TypeScriptTypeScript
Python (Django)Python (Django)
GoGo

Frontend Frameworks

ReactReact
Next.jsNext.js
Tailwind CSSTailwind CSS

Database & Caching

PostgreSQL (relational schemas)PostgreSQL (relational schemas)
RedisRedis
Elasticsearch (catalog search)Elasticsearch (catalog search)

Payment & Escrow

Stripe ConnectStripe Connect
AdyenAdyen
custom smart contract escrows (Web3 marketplaces)custom smart contract escrows (Web3 marketplaces)

Infrastructure

AWSAWS
DockerDocker
KubernetesKubernetes
Datadog (monitoring platform health)Datadog (monitoring platform health)
Our Edge

We Build Secure Commerce Ecosystems Designed to Scale.

We are experts in implementing multi-party payment splits, escrow allocations, and compliance integrations (KYC/AML onboarding).

Stripe Connect Integration Experts

We are experts in implementing multi-party payment splits, escrow allocations, and compliance integrations (KYC/AML onboarding).

Decoupled Architecture Focus

We decouple storefronts from individual vendor systems, ensuring system updates can be pushed without breaking individual merchant dashboards.

Data Isolation Paranoia

We treat vendor data boundaries as a critical priority, enforcing strict row-level security constraints to prevent cross-merchant data leaks.

250+ Products Shipped

We combine transaction-level security with modern user experience design to deliver stable, high-converting platforms.

Our Work

Our Projects

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Social Proof

“With hard work, determination, and an amazing team at Quecko, we can overcome any obstacle and achieve anything we set our minds to.”

Mateen O Dawood

Stable33 Protocol
Engagement

How We Collaborate

Dedicated Marketplace Pod

Full-time systems architects, React developers, backend database engineers, and integration QA supporting your platform.

Project-Based Platform Build

End-to-end development of your marketplace, from database blueprinting to launch.

Stripe Connect & Payout Migration

Dedicated project to build or audit custom payment split APIs and compliance flows within an existing platform.

FAQ

Frequently Asked Questions

We integrate payment routing engines (like Stripe Connect). When a customer checks out, the engine processes the transaction, routes the purchase amount to the vendor's account, and deposits the platform commission into your platform account automatically.

We integrate with automated KYC (Know Your Customer) identity systems. During vendor onboarding, vendors submit verification documents which are securely processed by the payment provider (e.g., Stripe Custom Connect) before they can receive payouts.

Yes. We build unified cart and checkout architectures. The checkout system calculates taxes and shipping parameters for each vendor location independently, processes the single charge, and routes the individual line-item orders to the respective vendors' dashboards.

Inventory details are tracked in isolated tables in the relational database. If a vendor uses external inventory managers, we build custom API integrations to sync stock quantities to their vendor profiles automatically.

Blogs

Latest Stories from Quecko

Ready to launch a scalable, multi-vendor online marketplace?

From custom vendor dashboards and unified checkouts to Stripe Connect split integrations and automated catalog moderation — Quecko builds online marketplaces designed to scale.

Talk to a Marketplace ArchitectView Our Portfolio