Custom software for businesses and government.

Web applications, portals, integrations and automation. Built fast, tested thoroughly and delivered for a fixed price you know up front.

  • Fixed price up front
  • Your code, your data
  • Experience since 2009
Gijsve Webshop Accounting CRM ERP Case system Client portal

Gijs

How can we help? Pick the option that comes closest.

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For the projects that fall between the cracks.

Too big or too important for a single freelancer. Too small or too specific for a large IT firm or a formal tender. That is exactly where we excel: a professional team, a fixed price and short lines of communication.

Sound familiar?

  • Colleagues retype data from one system into another every week.
  • There is an old system running that nobody dares to touch anymore.
  • Your off-the-shelf software does 80 percent of what you need. The rest happens in spreadsheets.
  • Your IT supplier quotes six months and a hefty budget for something that is actually small.
  • The job is too small for a tender, but you still want a reliable partner.
  • You have an idea for a portal or tool, but you do not know where to start.

Then you have come to the right place. Tell us what is going on and you will receive a fixed-price proposal within a few days.

Anything that runs in a browser or in the cloud.

Large or small, new or an existing system that needs to improve. This is what we build most often.

Web applications and portals

Client portals, dealer environments, booking and request systems, or an internal tool that replaces your spreadsheets.

Integrations and APIs

Webshop, accounting, CRM, ERP, case management or carrier: we make your systems talk to each other, so nobody has to retype data again.

Process automation

Take out the repetitive manual work: reports that build themselves, orders and requests that flow through automatically, notifications at the right moment.

Smart document processing

Read invoices, forms and emails automatically and put the data where it belongs. Less typing, fewer mistakes.

Dashboards and reporting

Figures from different sources together on one screen, so you see what is going on without pasting exports.

Websites and webshops

A fast website, a new webshop or custom work in your existing shop. In WordPress, WooCommerce, OpenCart, Magento or fully custom.

Prototype or first version

Want to test an idea quickly? We build a working first version you can demo, test or use to build support.

Modernising existing software

Legacy systems that are slow, insecure or hard to maintain, brought up to date step by step without disrupting daily work.

Technologies and systems we work with.

We choose the technology that fits your situation, not the other way around. If it fits what you already have, we build on that.

Programming languages

  • PHP
  • JavaScript
  • TypeScript
  • Python
  • Java
  • C#
  • Go
  • Ruby
  • Kotlin
  • Swift
  • Dart
  • SQL
  • Bash

Backend and frameworks

  • Laravel
  • Symfony
  • Node.js
  • Express
  • NestJS
  • Django
  • Flask
  • FastAPI
  • .NET
  • Spring Boot
  • Ruby on Rails

Frontend and apps

  • React
  • Next.js
  • Vue
  • Nuxt
  • Angular
  • Svelte
  • jQuery
  • Tailwind CSS
  • Bootstrap
  • HTML5
  • CSS3
  • React Native
  • Flutter
  • Progressive Web Apps

Databases and storage

  • MySQL
  • MariaDB
  • PostgreSQL
  • Microsoft SQL Server
  • SQLite
  • MongoDB
  • Redis
  • Elasticsearch
  • Firebase
  • Supabase

Cloud and hosting

  • Microsoft Azure
  • Amazon Web Services
  • Google Cloud
  • DigitalOcean
  • Hetzner
  • TransIP
  • Docker
  • Kubernetes
  • Linux
  • Nginx
  • Apache
  • DirectAdmin
  • Plesk

Integrations and standards

  • REST
  • SOAP
  • GraphQL
  • Webhooks
  • JSON
  • XML
  • CSV feeds
  • EDI
  • OAuth 2.0
  • OpenID Connect
  • SAML
  • SFTP
  • ZGW APIs
  • Common Ground

Business software

  • Exact Online
  • AFAS
  • Twinfield
  • Moneybird
  • Snelstart
  • Odoo
  • Salesforce
  • HubSpot
  • Microsoft 365
  • SharePoint
  • Google Workspace
  • Picqer
  • Mollie
  • Stripe
  • PostNL
  • DHL
  • GLS
  • bol.com

CMS and e-commerce

  • WordPress
  • WooCommerce
  • OpenCart
  • Magento
  • Shopify
  • Lightspeed
  • Drupal
  • Headless CMS

Process and quality

  • Git
  • GitHub
  • GitLab
  • CI/CD
  • Automated testing
  • Code reviews
  • Monitoring
  • Backups
  • Documentation
  • OWASP
  • WCAG

Your system not listed? If it has an API, an export or a database, we can almost always connect to it.

Sectors we work in.

Every sector has its own systems, rules and ways of working. We fit in with those instead of reinventing everything.

Government and municipalities

Portals for citizens and businesses, integrations with case management systems and automation of internal processes.

Education

Timetables, enrolments, registration portals and tools that save teachers and administrators time.

Healthcare and social care

Scheduling, client portals and integrations between systems, with privacy and care as the starting point.

SMEs and industry

Quotation and order tools, integrations with ERP and accounting, and dashboards for day-to-day management.

Trade and e-commerce

Webshops, B2B portals and integrations with warehouses, marketplaces and carriers.

Foundations and associations

Membership administration, registrations, donations and websites that volunteers can maintain themselves.

A reliable partner for public sector organisations.

Municipalities, provinces, water authorities and other public bodies work with procurement rules, information security requirements and accountability. We take that into account from the very first conversation.

  • Fits your procurement processA clear proposal with a fixed price, scope and timeline, suitable for single or multiple-quote procurement procedures.
  • Privacy and information securityWe work in line with the GDPR, sign a data processing agreement and take your security policy and the Dutch government baseline (BIO) into account.
  • Digitally accessibleWe build public-facing applications according to the WCAG guidelines, so everyone can use them.
  • Hosting in the Netherlands or the EUData stays within Europe, or runs on your own infrastructure.
  • Open and transferableNo vendor lock-in. You receive the source code and documentation, so another party can take over maintenance later if needed.

How we work together.

  1. Introduction

    You tell us what you need, by email, by phone or on site. We ask the right questions.

  2. Fixed-price proposal

    You receive a proposal with a fixed price and exactly what is and is not included. No loose ends.

  3. Build and adjust

    We build in short iterations. You see progress along the way and can steer where needed.

  4. Delivery

    Tested and live, with documentation. The code and the data are yours.

Why organisations choose Gijsve.

Everything tested

Every line of code is reviewed and tested before it goes live. We only deliver once it works.

Fixed price up front

You know the cost before we start. Extra work only with your approval.

Your code, your data

No lock-in and no mandatory subscription. If you want to continue with someone else later, you can.

Experience since 2009

We have been building and maintaining business-critical systems for companies and organisations for years.

Quick to deliver

A proven way of working and tried-and-tested building blocks. Faster results, without compromising on quality.

Dutch and direct

Short lines of communication, clear language and a dedicated contact who knows your project.

Frequently asked questions.

What does a project cost?

That depends on what you need. Projects start from €500 excl. VAT. You always receive a fixed-price proposal first, so there are no surprises.

How can you work so fast?

We have a proven way of working, modern development tools and a large library of solutions that have already proven themselves. That means we do not reinvent the wheel each time, and the time goes into what makes your project unique.

How soon can you start?

Usually soon. The proposal includes a timeline, and we stick to it. In a hurry? Let us know and we will see what is possible.

Do you also work for government and institutions?

Yes. We fit in with your procurement process, provide a clear proposal and sign a data processing agreement when personal data is involved.

Am I tied to a contract or subscription?

No. Maintenance and further development are available on demand, whenever you need them. The code is yours.

My question is not listed. Can you still help?

Most likely. If it runs in a browser or in the cloud, we can probably build it.

Tell us what you need.

A few sentences are enough. We respond within one business day with questions or a first idea.

We only use your details to respond to your request.