Senior Data Engineer - brusselsFreelance Contract: 02/02/2026 - 31/12/2026Onsite/Hybrid (50% after onboarding)Fluent in french, dutch and english. We are seeking a hands-on Senior Data Engineer to join a Corporate Banking team. You will design, optimise, and maintain data workflows, dashboards, and ad hoc reporting solutions, ensuring high-quality, reliable data for business users. Key responsibilitiesEnhance and streamline Alteryx workflows, rationalise legacy SAS processes, and reduce technical debtCollaborate on data integration, ensuring timely and accurate ingestion from multiple sourcesDesign reusable macros, simplify processes, and maintain clean, well-documented datasetsSupport deployment processes, monitor data quality, and manage multi-environment batch operations Required skills & experienceStrong hands-on experience with Alteryx and SQL (T-SQL)Experience with relational databases and data preparationVersion Control knowledge (SVN/GIT)Fluent in English + Dutch or French4-5+ years of relevant experience in data engineeringAgile mindset, strong analytical skills, and proactive communicationSAS, Python, Tableau, CI/CD practicesExperience in banking or financial servicesMaster's in Computer Science, Business, or equivalent experienc