Data Engineer | Kreuzberg, Berlin, Germany | HybridWe're working with BTB Berlin on this exciting opportunity. This role is crucial for shaping BTB's data landscape, turning data into a strategic asset for decision-making and innovation, and supporting the local energy transition.The Role• Design, build, and evolve scalable data architectures (e.g., Data Lake/Data Warehouse)• Develop, operate, and optimize ETL pipelines for data ingestion, transformation, and provision• Ensure data quality through validation, cleansing, standardization, and monitoring of data pipelines• Configure and maintain analytics, BI, and data warehouse solutions for reporting and data-driven decisions• Provide expert advice to technical departments on data and architecture-related matters• Document data infrastructure and processes, managing special assignments and stakeholder communicationWhat You'll Need• University degree in an relevant field or comparable qualification• Several years of professional experience in data engineering and data architectures (especially MS Fabric)• Proficient with relevant IT applications, databases, ETL processes, common programming languages, and data formats (e.g., JSON, Parquet)• Structured, independent, and solution-oriented work style with a high standard of quality• Fluent in both German and English for effective internal and external communicationWhat's On Offer• Flexible working hours within a 40-hour week and two days of mobile work per week• Attractive 13-month extra-tariff salary with additional annual special payment, plus a €630 tax-free annual benefits card• 30 days of annual leave, plus additional days off on December 24th and 31st• Company pension scheme, capital-forming benefits, and various health and sports programsApply via Haystack today!