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FreelanceFull-time Brussels, hybrid

Frontend Web Developer

A Belgian public-sector organisation

What you will do

You will join a development team building a new web-based case management platform to support critical operational needs. The solution is built on modern web technologies with a microservices and micro-frontend architecture, containerised and highly scalable, developed using agile Scrum methods.

As a frontend specialist, you will develop the client application that handles operational case files. During the first phase of the assignment, your main tasks will include:

  • Getting to know the existing environment and familiarising yourself with the business domain
  • Integrating services to retrieve, persist and modify data used by the client application
  • Modelling entities according to data standardisation best practices
  • Implementing user interfaces based on designs provided by the UX/UI designer, using a modular approach
  • Implementing unit tests and integration tests for the client side
  • Versioning your code, generating pull requests and performing code reviews before merging to the main branch
  • Working in an agile way, focusing on planned tasks, respecting deadlines and adapting to changing requirements

During the second phase, you will maintain the solution, including regular technology updates, technology watch and implementing new features or modules requested by users.

The backend consists of central services accessible through an integration layer. The infrastructure uses a containerised approach with Infrastructure as Code provisioning.

What we are looking for

You hold at least a bachelor's degree in IT and have several years of experience in a similar role.

Technical skills:

  • Developing single-page web applications, including micro-frontend architecture, using Angular and Module Federation
  • Authentication mechanisms via OpenID Connect and authorisation via OAuth2 for frontend applications
  • CI/CD pipelines with GitLab
  • Git, including branches, pull requests and code reviews
  • Web SPA and Clean Architecture
  • PostgreSQL, IndexedDB
  • NX, RxJS, unit testing and integration testing
  • PrimeNG
  • REST API
  • Agile methodology and Scrum

Nice to have:

  • Microservices architecture
  • PgLite
  • Vue.js
  • gRPC, SignalR, RabbitMQ
  • Knowledge of Kubernetes and Redis
  • Familiarity with the public-sector operational environment

Personal qualities:

  • Adaptable to changes in technology or strategy
  • Perseverant and solution-oriented
  • Team player with a collective mindset
  • Autonomous once aligned with the team
  • Technically curious and creative
  • Good communicator

Languages:

You are fluent in English and in either Dutch or French. Active knowledge of one national language and at least passive knowledge of the other is a strong advantage.

The setting

This is a freelance assignment running for three months, from mid-October to the end of December 2026. The role is based in Brussels with hybrid working arrangements. You will work full-time within a multidisciplinary team using Scrum.

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