Freelance Data Engineer, Rotterdam

Job title: Freelance Data Engineer (Migration to Databricks) Contract Duration: Until December 2027 Hourly Rate:£85–£90 per hour Location: Rotterdam: Hybrid ZZP required ***

Role Overview I am seeking an experienced Freelance Data Migration Consultant to support a large-scale enterprise migration to Databricks.

Key Responsibilities Migration of enterprise data platforms and analytics solutions into Databricks environments. Design, develop, and optimize scalable data pipelines using Spark, SQL, and Python within Databricks. Build and maintain semantic data models to support enterprise reporting and analytics capabilities.Use of Kafka for real-time data streaming. Develop logical and physical data models aligned with business and reporting requirements. Implement and enhance data quality frameworks, validation checks, reconciliation processes, and governance standards. Collaborate with business stakeholders to define migration priorities, data requirements, and reporting needs.Optimize data processing performance, cluster configurations, and workload scalability within Databricks. Support ETL/ELT migration activities from legacy or cloud-based platforms into modern data architectures. Ensure data accuracy, consistency, lineage, and compliance throughout migration activities.

Required Skills&Experience ZZP/Freelance setup in the Netherlands Strong hands-on experience with Databricks and Azure. Proven experience delivering large-scale data migration or modernization programmes. Strong data modelling expertise, including dimensional modelling and semantic layer design. Experience building semantic models for reporting and analytics platforms.Strong SQL and Python development skills. Experience implementing enterprise-level data quality and governance solutions. Good understanding of ETL/ELT frameworks and modern cloud data architectures. Experience working within Agile delivery environments. Strong stakeholder management and communication skills.