E-commerce Development That Converts and Scales

StorefrontsMarketplacesMobile commerceB2BQuick commerce

E-commerce software loses money in ways you can measure to the second — a storefront that loads a beat too slowly, a checkout with one step too many, a search that does not find what a shopper means. We build ecommerce platforms that convert on the customer side and hold up under peak load behind the scenes.

  • Built to GDPR, hosted on European infrastructure
  • Designed to convert and to survive seasonal peak load
  • A senior engineer replies within one business day
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  • GDPR compliant
  • EU data residency
  • Building since 2016
  • No lock-in

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E-commerce software we build for every kind of selling

E-commerce is not one model; it is many, and each sells and scales differently. A single-brand store has different needs from a multi-vendor marketplace, a B2B portal from a quick-commerce app. Whether your channel leans on web development for the storefront or on mobile app development for repeat purchases, below is how we build for each part of the e-commerce world, because a platform built for one model rarely fits another without serious thought about how it actually sells.

Online stores and D2C brands

Online stores and D2C brands

A direct-to-consumer store is your brand, your margin and your customer relationship in one place, so it has to convert and feel like you. We build fast, polished online stores where browsing, search, and checkout are frictionless, backed by the inventory and order systems that keep the operation running as sales grow.

  • Custom online stores and D2C platforms
  • Fast, conversion-focused storefronts
  • Frictionless search, cart and checkout
  • Inventory, order and fulfilment systems
  • Payment and shipping integration
Marketplaces and multi-vendor platforms

Marketplaces and multi-vendor platforms

A marketplace is two products in one: an experience for buyers and a system for sellers, with payments flowing between them. We build multi-vendor platforms that handle listings, seller management, commission and payouts cleanly, so both sides of the marketplace work and trust the platform between them.

  • Multi-vendor marketplace platforms
  • Seller onboarding and management tools
  • Commission, payout and settlement handling
  • Buyer and seller trust and review features
  • Search and discovery across many sellers
Mobile commerce and shopping apps

Mobile commerce and shopping apps

Shopping has moved to the phone, and a mobile app is now where loyalty and repeat purchases live. We build mobile commerce apps that are fast, personalised and convenient, with the push, payment and loyalty features that turn an occasional buyer into a regular one.

  • Native and cross-platform shopping apps
  • Personalised feeds and recommendations
  • One-tap payments and saved checkout
  • Push, loyalty and re-engagement features
  • Smooth performance on real-world devices
B2B and wholesale commerce

B2B and wholesale commerce

B2B commerce has rules consumer stores do not: negotiated pricing, bulk orders, accounts and approvals. We build B2B and wholesale platforms that handle customer-specific pricing, large and repeat orders, and the account structures business buyers need, so a complex sale runs as smoothly as a consumer one.

  • B2B and wholesale ordering platforms
  • Customer-specific and tiered pricing
  • Bulk, repeat and scheduled ordering
  • Account, approval and credit workflows
  • Integration with ERP and back-office systems
Quick commerce and on-demand retail

Quick commerce and on-demand retail

Quick commerce lives or dies on logistics: the order, the delivery and the real-time tracking all have to work in minutes, not days. We build on-demand and quick-commerce platforms that tie ordering, fulfilment and delivery together, with the real-time coordination that fast retail depends on.

  • On-demand and quick-commerce apps
  • Real-time order and delivery tracking
  • Rider, driver and fulfilment coordination
  • Live inventory and availability
  • Infrastructure built for demand spikes

Apps We Took From Idea to Launch

A few products that show what one accountable team can ship, built to be genuinely used.

Banoun — Kids Boutique Shopping App

Banoun — Kids Boutique Shopping App

An app that helps parents find kids clothes in seconds. Live stock across every screen on iOS (Swift) and Android (Kotlin), backed by a Laravel admin panel the store team runs without engineers.

Recu — Fashion Marketplace App

Recu — Fashion Marketplace App

A Flutter-based mobile marketplace where fashion finds a second life. Buyers discover curated listings on a visual feed and message sellers directly; sellers photograph, price and publish items in under two minutes. One app, two sides of the same closet.

PixiKwik — Salon E-commerce Marketplace App

PixiKwik — Salon E-commerce Marketplace App

Multi-vendor salon and beauty marketplace built for iOS and Android. Browse curated stores, manage wishlists, track orders from placement to delivery and check out with multiple payment options — all in one beautifully simple app.

TrendzFans — Creator Monetization App

TrendzFans — Creator Monetization App

Creator monetization platform with public and private live streams, in-app gifting with real-time animations, digital wallet for earnings and live chat. Built for content creators to grow their audience and earn directly from their fanbase.

Browse all case studies

What makes Mobilions an e-commerce software development company

E-commerce businesses choose us because we build for conversion, speed and peak-load reliability together, which is the combination that decides whether a store makes money, and we add intelligence such as AI chatbots where it genuinely lifts support and sales. These are the four things we are most often brought in to get right.

The platform built as one

One commerce platform

Storefront and operations, one team — no seams to drift.

Conversion and speed
Conversion & speed
Peak-load scale
Peak-load scale
Operations and back-office
Operations & back-office
Smart search and personalisation
Smart search & personalisation
Conversion and speed built into the storefront

Conversion and speed are built into the storefront

Every fraction of a second and every extra step costs sales, so we build for speed and a frictionless path to purchase from the start. Fast loading, clean search that understands what shoppers mean, and a checkout with nothing in the way are designed in, because in e-commerce, performance is not a technical nicety, it is directly visible in the conversion rate.

Infrastructure that survives the peak

Infrastructure that survives the peak

The worst time for a store to slow down or crash is the busy one, a sale, a launch, a seasonal rush, which is exactly when it is under the most load. We design for that peak from the architecture stage, with scaling and reliability built in, and load-test against the rush rather than the quiet, so the platform earns money when it matters most instead of falling over.

Clean operations behind the storefront

Clean operations behind the storefront

A great storefront fails if the inventory, orders and fulfilment behind it are a mess. We build the back-office systems, inventory, orders, payments, shipping and integrations, to work as one with the customer side, so stock stays accurate, orders flow cleanly, and the business scales without the operation breaking.

Smart search and personalisation that lift revenue

Smart search and personalisation that lift revenue

Shoppers who find what they want buy more, so we build a search that understands meaning, not just exact words, with recommendations and personalisation that surface the right products. These are not vanity features; they directly lift conversion and basket size, which is why we treat them as revenue tools rather than decoration.

Technologies we use for e-commerce software

We choose technology to fit the speed, scale and conversion that selling demands, never the other way round, and we explain every choice in plain language. For the apps we build, native iOS and Android or use Flutter and React Native where one codebase fits, with React and Next.js for fast, SEO-friendly storefronts and admin dashboards. On the backend, we work with Node.js or Python, chosen for the workload, with PostgreSQL or other databases for catalogue, order and customer data, and caching layers to keep pages fast.

For peak load, we design with auto-scaling, caching and content delivery on European cloud infrastructure through AWS or Google Cloud, so a sale or seasonal rush is absorbed rather than fatal. We integrate payment gateways, shipping providers, ERP and back-office systems so the storefront and operations work as one. Where intelligence lifts revenue, such as semantic search and recommendations, we build it in, and we handle customer data to GDPR on EU infrastructure. We keep everything defined as code, so the environment is documented and reproducible. The point is not the logos in the stack; it is that each piece is chosen to make the store fast, reliable at peak, and built to convert.

Storefront & Web

ReactNext.jsTypeScript

Mobile Apps

iOSAndroidFlutterReact Native

Backend

Node.jsPython

Data & Caching

PostgreSQLRedis

Cloud & Scale

AWSGoogle CloudCDNAuto-scaling

Integrations & Intelligence

Payment GatewaysShipping & ERPSemantic SearchRecommendations

Turn your idea into a production-ready e-commerce platform

Share your requirements, and we respond with architecture, timeline and cost, straight from the engineering team. A senior engineer reviews your brief and replies within 24 hours with a custom proposal in plain language. No sales pitch, no obligation.

Schedule a free call
9+
Years delivering production software
250+
Clients across industries & geographies
100+
Products live in production at scale
99.9%
Uptime across deployed systems

Why businesses choose us over a generic app agency

E-commerce platforms built by general agencies tend to look fine in a demo and then leak sales in production. The difference between an e-commerce software partner and a generic agency is building for conversion, speed and peak-load together. Three things set us apart.

Built to convert and proven at peak

Built to convert and proven at peak

Read more

Built to convert and proven at peak

Our e-commerce work is built to sell and to survive the rush. We design conversion and speed into the storefront and load-test for the seasonal and sale-day peaks, because in this sector, a store that is slow or that crashes when it is busiest has failed at the only job that matters, making money.

One team across the storefront and operations

One team across the storefront and operations

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One team across the storefront and operations

We build the storefront, the mobile app, the inventory and order systems, the integrations and any AI as one integrated product, by one team. You are not left stitching together a pretty front end from one vendor and a back office from another and hoping stock and orders stay in sync.

EU compliance and a European base

EU compliance and a European base

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EU compliance and a European base

Our European base means GDPR, EU data residency and the European retail context are the default, not an afterthought bolted on for an overseas team. For Dutch and EU ecommerce clients, that means customer data handled correctly and a partner who understands the market you sell into, in your own time zone.

Why e-commerce clients trust us

We have been building software since 2016, and e-commerce is part of a much larger body of production work rather than a one-off experiment. That track record is why retailers and marketplaces trust us with platforms whose performance is measured directly in revenue, where a slow page or a crash on a busy day is money lost in real time. You can see it in work like the PixiKwik beauty marketplace and the recu fashion marketplace.

Across all our work, we have delivered more than 100 products that run in production, built by a senior team of 25 or more engineers, for over 250 clients across more than 40 countries, including the Banoun shopping app. We keep 98 percent of our clients past the first year, and the systems we ship hold an uptime of 99.9 percent. Those numbers matter in e-commerce, especially, because a platform here is judged on whether it converts and whether it stays fast when the traffic surges.

0+products running in production — built, launched and maintained, not prototyped.
0+clients served
0+countries delivered to
0%platform uptime
0%of clients stay past year one
0+senior engineers — a team that supports and scales what it builds.

Frequently Asked Questions

Straight answers to the questions e-commerce businesses ask most, and the ones people most often type into Google.

It depends on scope, but as a guide, a focused online store or shopping app in the Netherlands typically starts around EUR 20,000 to EUR 50,000, while a marketplace or a platform with custom features, integrations and peak-load scale runs higher. We give a fixed estimate after a short discovery call, once we understand how you sell and the scale you need.
Both, depending on what fits. For standard needs, an established platform can be the right, cheaper choice, and we will say so. For a distinctive brand, a marketplace, B2B rules or features off-the-shelf platforms cannot reach, a custom build pays off. We advise honestly on build versus platform rather than defaulting to one.
By building for speed and a frictionless path to purchase from the start: fast loading, clean search that understands what shoppers mean, and a checkout with nothing in the way. We treat performance and search as revenue tools, because in e-commerce every extra second and every extra step is a measurable loss of sales.
Yes, when it is built for it, which we do. The busiest day is exactly when a fragile platform crashes, so we design with auto-scaling and reliability from the architecture stage and load-test against the peak rather than average traffic, so the store earns money when it matters most instead of falling over.
Yes. We build marketplaces that handle listings, seller onboarding and management, commission, payouts and settlement, with trust and review features and search across many sellers. A marketplace is really two products, a buyer experience and a seller system, and we build both so each side works and trusts the platform between them.
Yes, integration is central to e-commerce work. We connect payment gateways, shipping providers, ERP and back-office systems, so the storefront and the operation work as one with accurate stock and clean order flow. We map these integrations carefully up front, because they are where e-commerce projects most often hit surprises.
Yes. We build B2B and wholesale platforms with customer-specific and tiered pricing, bulk and repeat ordering, and account, approval and credit workflows, integrated with back-office systems. B2B has rules that consumer stores do not, and we design around them so a complex sale runs as smoothly as a simple one.
Yes, and we treat them as revenue tools. We build a search that understands what shoppers mean rather than just matching words, with recommendations and personalisation that surface the right products. Shoppers who find what they want buy more, so these directly lift conversion and basket size.
A focused store or shopping app can ship in two to four months, while a marketplace or a platform with custom features and integrations takes longer. We work in two-week sprints with working software throughout, so even a large build shows visible progress rather than going quiet until launch.
Yes, ideally as one connected system. We build the storefront and a native or cross-platform shopping app together, sharing the same backend, so stock, orders and customers stay in sync, and the mobile experience is fast and personalised rather than a bolted-on afterthought.
Yes, completely. You own the code, the IP and your customer data, on European infrastructure, with an NDA signed before work begins and no lock-in. The platform and the customer relationships it holds are genuinely yours, not rented from a vendor.
We stay. An e-commerce platform needs ongoing work as ranges, traffic and integrations change, and especially as peak seasons approach. The same senior engineers who built it support, tune and scale it, so it keeps converting and stays fast rather than decaying after handover.
Yes. Our European base is in Amstelveen, near Amsterdam, so Dutch and EU retailers get a local point of contact in the same time zone, platforms built to GDPR with customer data on European infrastructure, invoicing in euros, and a partner who understands the European market you sell into.
We build for online stores and D2C brands, multi-vendor marketplaces, mobile commerce and shopping apps, B2B and wholesale commerce, and quick commerce and on-demand retail. Each sells and scales differently, and we design around how your model actually works rather than reusing a generic template.