Senior Data Analyst (SQL, Power BI, Medallion)
Brussels-Capital
Digital - Data
Work experience: 10+
Reference number: 93002
You will translate business questions into measurable KPIs and reliable datasets, enabling data-driven decision-making in a large, complex ICT environment. The role sits close to delivery teams and stakeholders and focuses on building trustworthy data products using SQL, Medallion architecture, and Power BI. You will also work within a modern analytics platform context, including Microsoft Fabric Lakehouse.
Key Responsibilities
- Analyse business questions and define relevant KPIs and measurement logic
- Transform raw (structured and semi-structured) data into usable datasets using SQL
- Build and maintain data products aligned with data mesh principles and Medallion (Bronze/Silver/Gold) layers
- Implement targeted data quality checks to ensure accuracy, consistency, and reliability
- Create dashboards and reports in Power BI, including DAX measures, to visualize insights clearly
- Structure and coordinate data-related work within an ICT project environment
- Document work rigorously to support traceability and evaluation requirements
What are we looking for?
- You have 10+ years of experience in business data analysis and KPI definition
- You have 10+ years of hands-on experience performing SQL-based data transformations on structured and (semi-)unstructured data
- You have 10+ years of experience working with Medallion architecture (Bronze/Silver/Gold) or equivalent layered data modeling approaches
- You have 5+ years of experience building dashboards in Power BI, including DAX
- You have 2+ years of experience with Microsoft Fabric Lakehouse (or equivalent understanding of lakehouse concepts within Fabric)
- You have 10+ years of experience applying Agile ways of working in an ICT environment
- You are fluent in Dutch OR French (C1) and have English at B2 level
Nice to Haves
- Experience implementing data mesh operating principles in multi-team environments
- Experience designing reusable KPI layers and semantic models for analytics consumers
- Experience improving data quality through automated controls and monitoring
What do we offer?
Location: Brussels (hybrid)
Contract type: Open to both permanent employees and freelancers
Duration: ASAP - infinity
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