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Freelance or employed by HumanInTechFull-time Brussels, hybrid

Junior Data Warehouse Developer

A Belgian public-sector organisation

What you will do

You will join a diverse team working on quality reporting for a Belgian public-sector organisation. The role involves three main areas of work:

Functional reporting for business needs

  • Clarify user requirements through direct conversations with stakeholders
  • Analyse what users need and which data sources are available
  • Collaborate with data engineers who build the data marts
  • Design and build the requested reports
  • Test reports and provide demos and support to clients

Self-service support and development

  • Share ideas and best practices to evolve towards greater self-service within the organisation
  • Create good datasets aligned with the client's business story
  • Provide training and support for Power BI usage
  • Help with simple report building questions and minor report modifications

Team support

  • Adjust existing reports as needed
  • Collaborate on data mart and dataset development
  • Support the team with urgent questions and projects

What we are looking for

Must have

  • Demonstrable experience with data warehouse modelling (1 year)
  • Demonstrable experience with Microsoft Fabric (6 months)
  • Demonstrable experience with Power BI (2 years)
  • Project-oriented work experience with data warehouse modelling or a demonstrable education in data warehouse modelling
  • Knowledge and experience planning, designing and building data warehouse applications using tools such as Cognos or DataStage
  • Knowledge of Kimball or star schema modelling
  • Fluent Dutch (CEFR level C2)

Should have

  • Experience with SQL (1 year)
  • Experience facilitating workshops or conducting conversations about user expectations
  • Knowledge and experience of data warehousing concepts, processes and architectures
  • Knowledge of building data warehouse components: data integration (ETL), reporting and analysis (BI), databases and metadata
  • Knowledge of Agile development methodology

Nice to have

  • Experience with Azure Functions (6 months)
  • Experience with presenting
  • Previous experience in the public sector

The setting

This is an assignment with an estimated volume between 912 and 1200 hours. The assignment runs until late January 2027, with a full-time schedule. Hybrid working is possible. You will be based in Brussels.

The working language is Dutch.

How you join us

You can join us for this assignment as a freelancer or as an employee of HumanInTech. Same role, same team.

If you join as an employee, your employment continues beyond this assignment. When it ends, we’ll work together to find your next assignment.

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