Senior Full-Stack JS Developer – Innovation & AI
Brussels-Capital
Digital - Development
Work experience: 7-10
Reference number: 92798

You will join an innovation environment focused on exploring how emerging technologies can reshape digital experiences. The work is research-driven, experimental by nature, and operates without a fully predefined technical endpoint. Instead of delivering production systems, you will design, build, and validate proof-of-concepts and prototypes that explore new possibilities around personal data, AI, and user-controlled data models.

This role is suited for senior developers who enjoy technological exploration, ambiguity, and experimentation, and who are comfortable making architectural and technology choices independently, documenting them clearly, and translating research questions into working software.

Your responsibilities include

  • Designing and building experimental web applications and prototypes in an innovation context.
  • Developing front-end components using React or similar frameworks.
  • Implementing backend services (e.g. Node.js) and integrating with external APIs.
  • Integrating and working with Solid-based personal data vaults (Solid pods).
  • Designing and validating a media profile data model based on personal data concepts.
  • Building demonstration applications to validate assumptions around personal data usage.
  • Exploring and integrating AI capabilities into prototypes where relevant.
  • Translating high-level research questions into concrete technical experiments.
  • Making architectural and technology choices autonomously and documenting them clearly.
  • Collaborating closely with UX researchers, project leads, and external partners.

What are we looking for?

  • You have at least 8 years of professional experience developing complex applications.
  • You have proven experience as a full-stack developer.
  • You have hands-on experience as a React and/or PHP developer.
  • You have solid experience with API integrations.
  • You have hands-on experience with Solid technology and personal data vaults (Solid pods).
  • You have experience working on innovation or R&D projects with an unclear technical end result.
  • You are fluent in Dutch
??????Nice-to-Have
  • Experience coaching or leading developers.
  • Experience with Node.js.
  • Experience configuring AWS environments.
  • Experience with AI / ML development, including Python-based frameworks or AI APIs.
  • Experience working with Solid pods beyond basic integration.
  • Experience collaborating in multidisciplinary teams (UX, product, research).
  • Experience working in the media sector.

What do we offer?

Location: Brussels

Work regime: Full-time

Contract: Freelance or Permanent

Start date: 1 February 2026

End date: 31 December 2028

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