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Senior Software Engineer (Typescript &C#)



Software Engineering
Rotterdam, Netherlands
Posted on Tuesday, September 5, 2023
Mendix – the leading low-code application development platform:
The Mendix Platform uses visual modeling to abstract long-form coding out of application development. Our customers use Mendix to create and deploy better software for the enterprise, faster. Mendix is collaborative - the people who use the software and the people who build the software work together throughout the development process.
Read our Customer Stories to learn more about the wealth of software and solutions global organizations have built with the Platform.
At Mendix we strive to maintain a diverse, open, and safe working environment where people can be their true selves. We value every voice, celebrate individuality, and appreciate the diversity of thought and experience. People who work here are driven, smart, and really good at what they do.
As this market evolves, we encourage people of all skill levels to work with the platform, both for clients and candidates. Apply today to discover how you can make a meaningful impact with Mendix.
Our team works on the page editor which is used by thousands of Mendix developers to visually model pages. We strive to make it as simple as possible(e.g. for new developers), while on the other hand also offer the flexibility for experienced developers to build highly dynamic pages. Next to the look and feel of the editor, we continuously think of how we can improve the page modeling concepts to make it easier to understand, to offer more flexibility & control, how to support UI re-use etc.
The team is part of the Frontend group. This group is responsible for building great end-user experiences from design time to runtime for web, mobile and augmented reality.

You're the innovator we need if:

  • You're an expert in Typescript (and are willing to learn C#)
  • Experience working in logic layer or OOP principles (ideally with C#)
  • Experience with React - or similar web framework (Vue.js, Angular)
  • You have experience with core front-end web technologies like JavaScript, HTML5 etc.
  • You like working on the UI of both desktop and web applications
  • You like learning new things and techniques, you pick up new languages and technologies based on tasks at hand
  • You are excited by the challenge of complex technical problems
  • You continuously want to make the life of your users easier
  • You feel responsible for the quality of your work and the impact it has on others
  • You want to become part of a work environment in which your ideas are valued
  • You enjoy the occasional game of skribble and/or an online pub-quiz
  • You’re comfortable working as part of a scrum team


  • You have experience with MobX
  • You have experience with test frameworks like Jest, WebdriverIO or Selenium
Working for Mendix and with our Customers means your reliability has to be beyond any doubt, and therefore every employment is subject to an onboarding screening and the condition precedent a Certificate of Conduct is provided that demonstrates you did not commit any offences that are relevant to the performance of your function.
If you see a job description and think, “I’d be perfect for that” but your experience doesn’t align perfectly with the qualifications – don’t let that hold you back. We’re always eager to hire talented, passionate candidates – so give it a try and apply.
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