React Developer (with Full-Stack Potential) Build the Future of Interfaces with Mr. Artificial Intelligence, Digital Twins, and Extended Reality are reshaping industries—and we at Mr. We’re building bold, innovative digital solutions that blend deep tech with beautiful, user-focused design.
We’re currently looking for a React Developer to join one of our most impactful teams, made up of six passionate and experienced engineers. You'll help us craft stunning frontend experiences—but if you’ve got full-stack ambitions, there's plenty of room to grow into that space too.
Sound like your kind of vibe? We’re a tight-knit group of tech enthusiasts who build beautiful and useful things for organizations like EUROCONTROL, IKEA, Orange, DEME, Burger King, and Port of Antwerp-Bruges. Whether it’s a Digital Twin of European airspace or intuitive interfaces for enterprise platforms, we take pride in work that pushes boundaries. The walkthrough video of the project we did for EUROCONTROL serves as a great example of how we blend tech and design.
We’re part of the Cronos Group, but we operate with the flexibility and creativity of a startup. Our team combines senior engineering skill, genuine camaraderie, and a passion for building clean, scalable, and modern software. You’ll join a team of experienced developers working on custom frontend applications for our clients—each project is different, but always innovative.
Integrate with APIs (REST, GraphQL, or OpenAPI-spec’d) and help shape the data contracts.
NET, and Azure—if desired.
NET / C#.
Help define backend architecture and APIs.
Contribute to infrastructure, CI/CD pipelines, and cloud environments (mostly Azure).
2 to 4 years of experience building frontend web applications.
~ Strong grasp of HTML, CSS, and modern JavaScript / TypeScript.
~ Comfort working with NodeJS / NPM for frontend development.
~ Able to consume APIs and collaborate with backend engineers.
~ Fluent communication in Dutch and English, both spoken and written.
Experience with backend technologies (.NET, NodeJS, PostgreSQL).
Understanding of CI/CD, automated testing, and version control (GIT).
You’ll work with a warm, senior, and multi-skilled team that supports each other and builds great things together.
What’s in it for you?
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