Senior BI Data Engineer

What you will do

As Senior BI Data Engineer you will be part of the Business Intelligence team, responsible for designing, developing and maintaining the organisation's data platform. You will deliver reliable, performant and scalable data solutions that support reporting, analysis and data-driven decision-making.

Your work spans both on-premises and cloud environments. Alongside your own development activities, you will support the existing ETL and BI developers with complex technical questions, acting as a technical point of contact for specialised topics and contributing to the quality, continuity and maintainability of the BI platform.

Data engineering and integration

• Design, develop and maintain ETL and ELT processes
• Integrate data from diverse internal and external sources
• Develop and optimise data warehouses and data marts
• Develop dimensional data models following proven methodologies such as Kimball
• Implement data solutions in both on-premises and cloud environments
• Support the further development and modernisation of the BI platform
• Monitor the performance, stability and scalability of data solutions
• Prepare and maintain technical documentation

Supporting the development team

• Support ETL and BI developers with complex technical analyses and implementations
• Advise on the most suitable technical solution within existing architecture and development standards
• Assist with performance issues, data integration questions and complex incidents
• Help develop and apply technical standards and best practices
• Share expertise on SQL Server, data warehousing, cloud platforms and dimensional modelling
• Act as technical point of contact for complex data-related questions

What we are looking for

Education and experience

• Bachelor or master degree in IT or equivalent through experience
• At least five years of relevant experience in Business Intelligence, Data Engineering or Data Warehousing

Technical expertise

• Data warehousing
• Data engineering
• Data Lake solutions
• Data integration and data quality
• Dimensional modelling (Kimball)
• ETL and ELT processes
• Hybrid environments (on-premises and cloud)
• Microsoft Azure Data Services
• Microsoft Fabric
• Microsoft SQL Server
• Modern data architectures
• SQL Server Integration Services (SSIS)
• Star and snowflake models
• T-SQL

Valuable additional skills

• Azure Data Factory
• Power BI
• Spark
• Python
• Git
• Azure DevOps
• Data Vault

Personal qualities

• Strong analytical and problem-solving skills
• Excellent technical expertise combined with a pragmatic approach
• Ability to analyse and resolve complex technical questions
• Smooth collaboration within multidisciplinary teams
• Willingness to share expertise and support colleagues

Languages

• Native speaker of Dutch or French
• Able to read and understand the other national language

The setting

This assignment runs from December 2026 to the end of June 2027. The work is hybrid, with two days per week on site in Brussels and up to three days remote.

You will work as a senior technical expert without managerial or coordinating responsibilities. The BI Lead is responsible for the strategic direction of the BI landscape, architectural choices, prioritisation and alignment with the business. You will support the execution of this vision through your technical expertise, focusing on designing and implementing data solutions and supporting the development team with complex technical challenges.

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.

Location: Brussels, hybrid

Work address: Belgium

Employer / contracting party: HumanInTech

Applications close (Brussels time): November 15, 2026 at 1:00 AM

Engagement: Freelance or employed by HumanInTech

Working hours: Full-time

Experience: 6–10 years or more

Education: Bachelor's or more

Published: November 2026