Rhox

Ontwikkelaar Datawarehouse (Senior)

Closes on 21/10/2026
Brussels
Hybrid
Starts on 01/11/2026
Remuneration: 3.900 - 4.950 EUR/mo gross+ extralegal advantages ·Freelance also possible

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We're looking for a senior developer to build warehouse applications and linked data services. The work combines , open-source semantic applications and containerised components.

What you'll do

  • Plan, design and build applications.
  • Develop services that query and update linked data.
  • Build semantic applications for end users.
  • Develop components using semantic models and data queries.

What you bring

  • Five years of experience in modelling.
  • Project-based delivery experience, or formal training in data warehouse modelling.
  • Data warehouse development using tools such as or .
  • experience.
  • Experience developing and deploying components using containers and .
  • Experience with triple stores such as Virtuoso.
  • Linked data expertise: SPARQL, RDF, RDFa, -LD and LDES.
  • , C2.

Nice to have

  • Knowledge of data warehousing concepts, processes and architectures.
  • Experience building ETL, BI, database and metadata components.
  • Experience implementing semantic technologies and developing semantic .
  • Experience with mu.semte.ch, Ember and single page apps.
  • and experience, ideally within SAFe, with leadership capability.
  • Experience using, integrating and extending existing editors.
  • Knowledge of commonly used vocabularies and .
  • Digitalisation project experience involving regional or local authorities.

Good to know

  • Internships, academic work and hobby projects can count as relevant experience.

What's next?

The people who do well here are the ones who saw themselves in this description. Not because they match every line, but because the mission felt right for them.

We are actively hiring for this position. Applications are reviewed by our team, and matching profiles receive a call to discuss the role in detail.

It takes under a minute to apply. Your email, your CV. That is all we need to start the conversation.