Data Engineer / BI Developer

Data Engineer / BI Developer - 14 Months - Antwerp Belgium

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Intro

Join RELYzIT Talent as a Data Engineer / BI Developer for a high-impact, freelance assignment with our client in Antwerp, Belgium. This is your opportunity to shape the future of national-scale police operations by building robust, end-to-end data solutions that empower real-world decision-making. If you thrive on solving complex data challenges and want your work to matter, this is where you belong.

Why This Role Matters

Our client is at the forefront of developing and managing a national platform that underpins the core operations of integrated police services. As the platform evolves into the standard for police reporting and procedures, your expertise will be pivotal in transforming raw data into actionable insights. You will directly enable strategic reporting, data mining, and advanced analytics, ensuring that critical police information is accessible, reliable, and impactful. The stakes are high: your work will help safeguard communities and drive innovation in public safety.

What You’ll Be Doing

• Migrating and optimizing existing data pipelines and data warehouse structures to next-generation architectures


• Designing, developing, and maintaining scalable data pipelines and transformation processes


• Modeling data using industry standards (Kimball, Inmon, Data Vault) to ensure consistency and reliability


• Building and refining SQL and Python-based data processing logic


• Leveraging commercial (Microsoft Fabric, Databricks) and open-source (Apache, dbt) data platforms


• Championing best practices in data engineering, version control, and deployment workflows


• Enhancing the scalability, reliability, and maintainability of the data lake house (bronze and silver layers)


• Developing Power BI datasets, semantic models, dashboards, and reports for both operational and strategic use


• Translating complex business questions into clear, actionable visualizations and KPIs


• Optimizing report performance and user experience within Power BI


• Implementing data governance and access controls to ensure data security and compliance


• Supporting self-service BI initiatives and guiding business users in leveraging data assets


• Collaborating closely with data engineers, architects, and business stakeholders to onboard new data domains and drive new use cases


• Serving as a bridge between technical teams and business users, ensuring data is transformed into meaningful insights

What We’re Looking For

• Proven experience as a BI Consultant and Senior BI Developer


• Demonstrated expertise in Data Management (ETL), requirements analysis, and reporting tools


• Strong ownership mindset with a passion for solving complex problems and delivering measurable impact


• Ability to translate business needs into robust data models and compelling visualizations


• Collaborative spirit, eager to contribute to a high-performing, builder-driven team

Technical Skills & Experience

• Extensive experience with SQL and Python for data processing


• Hands-on experience with Microsoft Fabric or Azure data stack (Data Factory, Synapse, Fabric)


• Proficiency in Power BI: building semantic models, dashboards, and reports


• Strong knowledge of data warehouse modeling (Kimball, Inmon, Data Vault)


• Experience with Git and versioning workflows


• Familiarity with dbt and open-source data engineering tools (Apache products)


• Experience with Azure Data Factory (preferred)


• Ability to guide business users in self-service BI environments

Language Proficiency

• Fluency in Dutch at European CEFR level C2 is mandatory

Other Requirements

• Higher education: Master’s or Bachelor’s degree


• IT-Code and NDA (to be signed as part of the application process)


• Ability to provide a comprehensive CV and complete required attachments


• Willingness to work within the framework agreement and adhere to project-specific terms (including notice periods and indexation rules)

Project Details

• This is a freelance position with an initial duration of 14 months, based in Antwerp, Belgium


• Potential for extension in 12-month increments, subject to mutual agreement


• All applications must include the completed IT-Code, NDA, and candidate CV (to be submitted as a single zip file)