Frontend Developer

Geplaatst 5 maanden geleden.

A Day in The Life

In this role, you’ll be responsible for designing, building, and maintaining Hyfen’s state of the art frontend applications. You will be responsible for optimizing user experience and help create a UX-minded frontend practice. You will work in one of our project teams to write reusable, testable, and efficient code and to implement high-availability applications. You’ll be responsible for ensuring the proper respect of security practices and data protection. You will have a key responsibility in our 24/7 operations, and be one of the drivers for the software architecture, UI/UX design, tooling, and integration strategy choices made by HYFEN.

Concretely, we’ll expect you to

  • Design, build and maintain our frontend applications
  • Design UI to optimize & improve user experience
  • Integrate with server side logic interfaces developed by backend-end developers
  • Build reusable code and libraries for future use
  • Optimize applications for maximum efficiency and scalability
  • Implement security and data protection

We work flexibly, currently as a distributed team working largely from home due to the COVID crisis. In the future, we’ll expect you to be working with us in our Amsterdam or Heerlen offices (while remaining flexible with plenty of working from home possible).

Must-have Skills

You must be fluent in English, and have proven experience working with the following:

Languages / Frameworks

  • Typescript & JavaScript
  • React
  • HTML5, and CSS3

Concepts & Principles

  • UI/UX Design
  • Test driven development
  • Software architecture and security best practices / standards
  • Automated testing platforms and unit tests
  • Code versioning
  • OWASP security principles
  • Certificates & SSL, CORS
  • Interfacing via REST APIs
  • Agile and Scrum

Operating Systems:

  • Windows
  • Linux


  • Microsoft Azure
  • CI/CD in Microsoft Azure Devops (developing and using)
  • Visual Studio Code
  • NodeJS
  • Version Control (git)

The Cherry on top

You’d really stand out if you have experience with:

  • Next.js framework
  • Puppeteer test automation
  • Chakra-ui components library
  • Prometheus (and Grafana)
  • Elastic Stack (ELK)


We are looking for someone dynamic, a team player at heart, eager to learn, and ready to jump on new topics while taking ownership in delivery.

Solliciteer online

Een geldig e-mailadres is verplicht.
Een geldig telefoonnummer is vereist.