Web application developmentCustom web apps, SaaS and portals

We build applications that run in the browser: SaaS platforms, customer portals and internal tools. We work with React, Next.js and Node.js. You talk directly to the developer who builds it.

Web applications

From a first version to test your idea to a full platform. We build web applications that grow with your business.

01

Frontend

The part users see, built with React, Next.js or Angular

  • + React & Next.js
  • + Angular
  • + TypeScript
  • + Works on every screen size
  • + Progressive Web Apps
  • + Reusable components
  • + Fast load times
02

Backend

APIs, databases and the logic behind the screens

  • + .NET & C#
  • + Node.js & Python
  • + REST and GraphQL APIs
  • + Microservices
  • + Database design
  • + Login and security
  • + Real-time features
03

Cloud & DevOps

Hosting and automatic release of new versions

  • + AWS, Azure & GCP
  • + Docker & Kubernetes
  • + CI/CD pipelines
  • + Monitoring and logging
  • + Automatic scaling
  • + Infrastructure as Code

What we pay attention to

  1. 01

    Security

    GDPR-compliant, with encryption, secure login and permissions per user

  2. 02

    Speed

    Caching and a well-designed database, so pages load quickly. The Sanimax website loads in about 1 second.

  3. 03

    Room to grow

    A setup that handles more users without having to rebuild

How we build a web application

  1. 01

    Requirements and setup

    1-2 weeks

    Walking through your business process, recording what each user needs and deciding on the technical setup

  2. 02

    Design

    2-3 weeks

    Wireframes and prototypes for phone, tablet and desktop

  3. 03

    Build in sprints

    8-20 weeks

    Two-week sprints, with your feedback after each one

  4. 04

    Testing and go-live

    1-3 weeks

    Thorough testing, a security check and go-live

Average development time: 12-24 weeks

Book a free callSee the demo

What you get

What we pay attention to in every web application

01

Progressive Web App

Installable on phone and desktop, with offline use and push notifications where needed.

02

Fast

Server-side rendering and caching so pages load quickly. The Sanimax site loads in about 1 second.

03

Security

Login with roles and permissions, encrypted connections and GDPR-compliant data storage.

04

Room to grow

A setup that handles more users and more data without a rebuild.

05

Works on every screen

Tested on desktop, tablet and phone.

06

Common technology

React, Next.js and TypeScript. Many developers know these tools, so you are not tied to us.

How a project runs

In short rounds, with deliveries along the way

  1. 01

    Introduction and plan

    1-2 weeks

    We discuss what the application should do and make a schedule.

  2. 02

    Design and setup

    2-3 weeks

    Screen designs and the technical setup.

  3. 03

    Build

    8-16 weeks

    We build in sprints and show you what is finished after each one.

  4. 04

    Testing and launch

    1-2 weeks

    Testing, fixing issues and putting the application live.

Technology we use

Common tools with a large community

Frontend

  • + React
  • + Next.js
  • + TypeScript
  • + Tailwind CSS
  • + Vue.js

Backend

  • + Node.js
  • + Python
  • + Django
  • + .NET
  • + Express

Infrastructure

  • + AWS
  • + Azure
  • + Docker
  • + Kubernetes
  • + CI/CD
FAQ

Frequently asked questions

About having a web application built

What our clients say

“Our new website is really fast, with load times of 1 second, and everything responds intuitively. Exactly what we had in mind.”

Sanimax

Website · Haarlem
sanimax.nl
“A complete solution with AI integration, from app to platform. We are very happy with the end result.”

Heumin

AI app · iOS, Android & web
heumin.com
“Within a week our website was completely redesigned and all funnels were correctly integrated. We are very happy with the result.”

ABN Vloerverwarming

Website & funnels · Haarlem
abnvloerverwarming.nl

Need custom software built

Book a free call with our developers. We look at your situation and discuss what's possible for your web application or business software. There is no obligation.

Book a free call