
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.
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.
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.
Case Studies
Explore our work in the e-commerce & marketplace sector.
Frequently Asked Questions
Do you build on Shopify or from scratch?▾
How do you handle high-traffic events like flash sales?▾
Can you integrate with Vietnam's local logistics providers?▾
Do you build mobile commerce apps?▾
Trusted by Engineering Teams Across 15+ Countries
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.