Custom Web Development Company in the Netherlands

Mobilions builds fast, scalable web applications in React and Next.js, from the interface your users see to the server and database behind it. One senior team owns the whole build, so nothing falls between the gaps.

  • Frontend, backend and database handled by one team, so your web app ships as a whole.
  • Built for Core Web Vitals and SEO from the first commit.
  • European infrastructure with GDPR and AVG as the baseline.
  • Senior engineer replies within 24 hours
  • NDA on request
  • No obligation

Describe your project

Share a few details and our team will reach out to you within 24 hours.

🚀0+Apps shipped
📅0+Years building
👨‍💻0+Engineers
🤝0%Client retention

What We Build as a Web Development Company

From a marketing site that loads in a blink to a full SaaS platform. One team covers the interface, the server and the data.

Custom Web Applications

Web apps built around your product rather than forced into a template. React and Next.js on the front, a solid server behind, with the rendering approach chosen per page, so speed and SEO both hold up.

React and Next.js, in TypeScript, built for your case
Server-side rendering where SEO matters, client-side for apps
Designed to grow without an expensive rewrite later
One team across the interface, the API and the database

Frontend Development

The part your users actually touch: fast, accessible interfaces that pass Core Web Vitals and work on every screen. See our dedicated frontend development service for the full details.

React, Next.js and TypeScript interfaces
Core Web Vitals: LCP under 2.5s, INP under 200ms
Accessible to WCAG 2.2 AA and built for SEO
Design systems so the UI stays consistent as it grows

Backend Development

The engine behind the screen: APIs, databases, authentication and the logic that has to stay up under real load. Built in Node.js or Python, covered in full on our backend development service page, with database integration handled in-house.

REST and GraphQL APIs in Node.js or Python
Databases designed before code, indexed for scale
Authentication, security and GDPR built in
Architecture that handles ten times today's traffic

Full-Stack Development

One team, or one engineer, owns the whole web product end-to-end. The fastest route for MVPs and growing products is detailed on our full-stack development service page.

Interface and server owned by one team
Faster delivery, no handoff gaps between vendors
Ideal for MVPs, SaaS and growing products
Scales into dedicated specialists when you need them

eCommerce and SaaS Platforms

Subscription products, checkout flows, dashboards and multi-tenant platforms, the commercial web apps that have to convert and keep working as traffic spikes.

Checkout, billing and subscription management
Multi-tenant SaaS architecture with role-based access
Conversion-focused interfaces backed by solid servers
Built to handle traffic spikes without falling over

Web App Modernisation

Old, slow or unmaintainable web apps brought back to life. Legacy code moved onto React or Next.js, performance fixed, and accessibility lifted, usually without a full rebuild.

Legacy jQuery or AngularJS moved to React or Next.js
Core Web Vitals and performance brought back to green
Accessibility lifted to WCAG 2.2 AA
Done incrementally, so the business keeps running
Not sure what your web project needs?Talk to an engineer

Why One Team for the Whole Web App Beats Three Vendors

Most web projects go wrong in the gaps: the design agency, the frontend shop and the backend team each own a slice, and nobody owns the result. We close those gaps by owning all of it, and where it helps we layer in AI development too.

No handoff gaps, no finger-pointing

When the interface, the API and the database are built by separate vendors, every bug becomes a debate about whose fault it is. With one team across the whole stack, there is one place the responsibility sits, and problems get fixed instead of forwarded.

Speed and SEO designed in, not patched on

A web app that loads slowly or cannot be crawled loses customers and rankings. We build for Core Web Vitals and search from the first commit, choosing the rendering approach per page, so performance is part of the architecture rather than a rescue job later.

Built to grow on EU infrastructure

We design the web app for where it is heading, not just launch day, so growth is a configuration change rather than a rebuild. Everything runs on European, GDPR and AVG-compliant infrastructure, which matters for any Netherlands business.

How Your Web App Gets Built

Five phases, with a tangible output at each one. Working deploys every two weeks, across the whole web app.

1
Architecture decision in days

Discovery and Architecture Decision

You describe the web app. Our engineers choose the stack: rendering approach per page, backend language, database and hosting. The recommendation covers every layer and comes with reasoning you can challenge.

2
Designs and schema before code

Design and Data Model

Interface designs and the database schema are agreed upon first, because they shape everything that follows. You see the screens and the data structure before a line of production code is written.

3
Deploys every two weeks

AI Accelerated Development

AI scaffolds the frontend and backend from approved designs and schema. Engineers own the architecture, logic and security across both layers, the way we built the JoinBeet nutrition platform. Working software, front and back, deploys every two weeks.

4
Tested across the stack

Testing and Quality Assurance

Frontend, API and database are tested together: unit, integration and end-to-end. Performance checks against Core Web Vitals, security scanning and an accessibility audit before the web app goes near real users.

5
Monitoring from day one

Production Launch and Scaling

Deployment runs through a CI/CD pipeline. Monitoring covers the whole web app from day one. The same team handles scaling and ongoing development as traffic grows.

Let’s Build

Build Intelligent Solutions With the Right Stack

From AI architecture to cloud deployment, design, engineering and infrastructure are handled by one team. No coordination overhead, and no gaps in quality.

Start Your Project
9+
Years delivering production software
250+
Clients across industries and geographies
100+
Products live in production at scale
99.9%
Uptime across deployed systems

Technologies Our Web Development Team Works With

Production tools chosen by engineers who use them daily across the whole web app.

Frontend

React 19Next.js 15Vue.js 3TypeScript

Backend

Node.jsPythonGoExpressFastAPINestJS

Databases

PostgreSQLMongoDBRedisDynamoDB

Cloud

AWSGoogle CloudVercelDockerKubernetes

Auth

OAuth 2.0JWTAuth0Firebase Auth

Real-Time

WebSocketsSocket.ioRedis Pub/SubServer-Sent Events

Testing

JestPlaywrightCypressSupertestk6

DevOps

GitHub ActionsTerraformDockerSentryDatadog

Payments

StripePayPalRazorpaySubscription billing

Build Intelligent Solutions With the Right Stack

From AI architecture to cloud deployment — design, engineering and infrastructure handled by one team. No coordination overhead, no gaps in quality.

Start Your Project
9+
Years delivering production software
250+
Clients across industries & geographies
100+
Products live in production at scale
99.9%
Uptime across deployed systems

What Our Clients Say About Us

Real feedback from real clients. Here is what businesses say about working with Mobilions on their mobile and web products.

Alexander
Alexander
Netherlands

It was a wonderful experience working with Tushar, Ankit, and their team. They built a great mobile app for me and truly brought my vision to life. What stood out was not just their technical skill but their attitude: always positive, solution-oriented, and incredibly patient. They went above and beyond at every step, finding creative workarounds and staying committed even when things got challenging. Extremely professional and trustworthy. I would absolutely hire them again.

Web Development FAQs

The questions Netherlands teams actually search for before starting a web project.

Web development in the Netherlands typically costs between EUR 5,000 and EUR 75,000 in 2026, depending on what you are building. A custom marketing website costs around EUR 5,000 to EUR 20,000, while a full web application or SaaS platform costs from about EUR 20,000 upward, reaching six figures for enterprise builds. Dutch agencies usually charge a fixed project fee or a day rate between EUR 450 and EUR 650. Before any code is written, we give you a fixed proposal with scope and price in plain language.

Most web applications take eight to twenty weeks, depending on complexity. A focused website can be ready in four to six weeks, a custom web app in eight to sixteen, and a larger SaaS platform longer. We work in two-week sprints, and each one ends with working software you can click through, so progress is always visible.

We build with React and Next.js in TypeScript on the frontend, and Node.js or Python on the backend, which is the modern, well-supported stack for fast, SEO-friendly web apps in 2026. We choose the rendering approach, server-side or client-side, per page, so both performance and search visibility hold up.

Both, and that is the point of working with us. The same team builds the interface, the server and the database, so your web app ships as one coherent product instead of three pieces from three vendors that have to be stitched together. You can also engage us for just the frontend or just the backend if that is what you need.

Yes, speed and SEO are built into how we work, not added at the end. We design for Core Web Vitals from the first commit, LCP under 2.5 seconds, INP under 200 milliseconds and CLS under 0.1, and structure the site for search with clean rendering and semantic markup, so it is fast for users and visible to Google.

Yes, modernisation is a common project for us. We move legacy jQuery or AngularJS code onto React or Next.js, fix performance and accessibility, and rebuild what needs rebuilding, usually incrementally, so your business keeps running. We assess what is worth keeping before suggesting a full rebuild.

Yes, security and GDPR are designed in from the start. We build authentication, encryption and AVG-compliant data flows as standard, on European infrastructure. Our Amstelveen base means EU data rules are the baseline for any Netherlands client, not an afterthought.

Yes, the Netherlands and the wider EU are home turf for us. Our European base is in Amstelveen, near Amsterdam, so Dutch and EU clients get a local point of contact in the same time zone, work built to GDPR and AVG standards by default, and invoicing in euros.

Still have a question?Talk to us