InApps Technology
E-commerce & Marketplace industry illustration
Scalable Commerce Platforms

Software Engineering for E-commerce & Marketplaces

From pharmacy chains to fashion marketplaces, we build commerce platforms that scale to millions of users and thousands of SKUs. 200%+ average online sales growth for our clients.

+200%average online sales growth for clients

The Challenges We Solve

We have worked across dozens of e-commerce & marketplace projects. These are the pain points we hear most, and know how to fix.

Black Friday traffic spikes crash unoptimised platforms and cost revenue

Multi-vendor inventory sync requires real-time accuracy across warehouses

Checkout abandonment rises with every additional second of load time

Marketplace trust and fraud prevention require robust moderation tools

Omnichannel fulfilment integrations are complex and prone to data drift

Our E-commerce & Marketplace Solutions

From product strategy to production deployment, our dedicated teams cover the full engineering lifecycle.

Custom Storefront Engineering

Headless commerce storefronts with sub-2-second LCP, full SEO optimisation, and seamless checkout flows. We build on Next.js or Nuxt.js with commerce engines (Shopify API, Medusa, Magento, custom).

Multi-vendor Marketplace Platforms

Seller onboarding workflows, product catalogue management, commission and payout systems, dispute resolution tools, and review moderation, all in a scalable, maintainable architecture.

Order Management & Fulfilment

Real-time inventory sync across warehouses and stores, third-party logistics integration (Giao Hang Nhanh, GHN, DHL API), automated fulfilment routing, and delivery tracking.

Loyalty, Promotions & Personalisation

Loyalty program engines, voucher management, personalised product recommendations (collaborative filtering), and A/B testing infrastructure for conversion optimisation.

🛡️ Commerce & Data Compliance

Payment Security & Data Privacy

All payment integrations are handled via certified PSP tokenisation (Stripe, VNPay). We never store raw card data on your infrastructure, ever.

PCI DSS compliant payment flows: no card data stored on platform servers

GDPR / PDPA consumer data consent management and right-to-erasure flows

Seller fraud detection and anti-money-laundering (AML) for marketplace payouts

WCAG 2.1 AA accessibility compliance for all consumer-facing storefronts

Vietnam Ministry of Industry and Trade e-commerce registration compliance

Relevant Tech Stack

Technologies our e-commerce & marketplace engineering teams work with daily.

Next.js
React
Node.js
PostgreSQL
Redis
Elasticsearch
AWS
Stripe
Shopify API
Medusa.js
Docker
Kubernetes

Case Studies

Explore our work in the e-commerce & marketplace sector.

Frequently Asked Questions

Do you build on Shopify or from scratch?
Both. For standard storefronts, we build Shopify Plus custom themes and apps. For complex multi-vendor platforms, custom requirements, or markets where Shopify's fee structure is prohibitive, we build fully custom commerce engines on Node.js or Next.js with headless architecture.
How do you handle high-traffic events like flash sales?
We design for peak load from the start: auto-scaling groups, read replicas, Redis caching, CDN-first asset strategy, and load testing before every major sale event. We have handled 10x normal traffic spikes with zero downtime.
Can you integrate with Vietnam's local logistics providers?
Yes. We have built integrations with GHN, GHTK, Viettel Post, J&T, and major regional players. We also build custom logistics routing engines for multi-warehouse fulfilment.
Do you build mobile commerce apps?
Yes. We build companion mobile apps (React Native or native) for B2C commerce and mobile-first marketplaces, including in-app purchase flows, push notification for abandoned cart recovery, and deep linking.

Trusted by Engineering Teams Across 15+ Countries

Jollibee logo – InApps Technology client
KFC logo – InApps Technology client
Lotte logo – InApps Technology client
Prudential logo – InApps Technology client
Future Processing logo – InApps Technology client
Pegas Touristik logo – InApps Technology client
Mega Market logo – InApps Technology client
Haivanship Towage and Shipping Agency logo – InApps Technology client
Stremium logo
Two-Raw-Sisters-logo
InApps-Tessa-logo
Jollibee logo – InApps Technology client
KFC logo – InApps Technology client
Lotte logo – InApps Technology client
Prudential logo – InApps Technology client
Future Processing logo – InApps Technology client
Pegas Touristik logo – InApps Technology client
Mega Market logo – InApps Technology client
Haivanship Towage and Shipping Agency logo – InApps Technology client
Stremium logo
Two-Raw-Sisters-logo
InApps-Tessa-logo

Ready to build your e-commerce & marketplace product?

Talk to an InApps ODC consultant. We will scope your project, recommend a team structure, and have engineers interviewing within 5 business days.