Warning: Fake vacancies of Belsimpel/Gomibo are circulating on the internet. We do not hire candidates without a physical interview in our office or stores.

Our Stack

We find it important that you feel comfortable. Of course, your development tools play a large part in that. Within our teams we work with different stacks! Are you curious as to what languages, frameworks, and tools we use? Discover them below!

Are you curious about what we build and in what ways? Look at our development teampage.

Our stack by team

Which stack you work with varies by team. If you have a specific preference, please indicate it when you are in conversation with us. Nevertheless, with us you also get the opportunity to develop yourself. So in many cases, it is not a hard requirement that you master a particular programming language or have experience with a specific framework.


Programming languages

  • React
  • Vue
  • Javascript
  • Typescript
  • jQuery
  • Smarty

Frameworks & Tools

  • Sentry
  • Graylog
  • Kibana
  • ElasticSearch
  • Jest
  • CSS-in-JS
  • Vuetify
  • Vue-Bootstrap


Programming languages

  • PHP
  • Python

Frameworks & Tools

  • MariaDB
  • PHPStorm
  • Laravel
  • ActiveRecord
  • Sentry
  • Graylog
  • ElasticSearch
  • Redis
  • RabbitMQ
  • Composer
  • Docker
  • Kubernetes
  • ELK
  • Gitlab

Data Science

Programming languages

  • R
  • SQL

Frameworks & Tools

  • RStudio
  • Git

Marco on the use of PHP within Gomibo

‘I enjoy working on a platform that is used by millions of people daily’

Our most commonly used language is PHP. Although there are many funny memes about this language, the modern versions of PHP are very strong, and help us write small, testable, stable, human readable code. We recently switched to PHP 8, and this gives us additional features such as null coalescing and matching to make our code just a bit more readable. We also use the PSR standards at Gomibo, and on top of that, our own Gomibo standards. Together with our review and coaching system, we can guarantee consistency and quality, even for a language like PHP!


Programming languages

  • Swift
  • Kotlin
  • TypeScript
  • Objective-C
  • Java

Frameworks & Tools

  • Xcode / Android Studio
  • CoreData / Room
  • Cocoapods / Gradle
  • React Native
  • Firebase
  • Fastlane


Frameworks & Tools

  • Infra
    • Ceph
    • Proxmox
    • Docker
    • AWS
  • Config & deploy
    • Ansible
    • Gitlab
    • Kubernetes
  • Networking
    • Bird
    • Cisco
    • FRR
    • SONiC
  • Load balancing
    • Nginx
    • HAProxy
  • Open source daemons
    • MariaDB
    • Postfix
    • RabbitMQ
    • Redis
    • Galera

Programming languages

  • Shell-scripting
    • Bash
    • Python

Do you want to know more about why we use specific languages?
Send us a message via
werken@belsimpel.nland one of our colleagues will gladly explain this in more detail! van onze collega’s vertelt je hier graag meer over!

Improving with React

At Gomibo, we are always looking for a better way, and how we can improve ourselves. The same applies to code! For example, in the last 2 years, we have made the decision to replace our existing code base of Javascript, HTML, CSS and Smarty with React. Because of this, our website runs faster, and you can easily use various components in different places. This transformation is still ongoing, so you could start working on this as well!