Data Engineer

As a Data Engineer, you design and operate our central data foundation for AI, analytics, and automation solutions. You ensure data quality, availability, and compliance with governance requirements. Key responsibilities Build scalable data pipelines for structured and unstructured data Integrate APIs, databases, and streaming systems Develop and run ETL/ELT processes (cleansing, normalization, enrichment) Model data for OLTP, OLAP, and data lake architectures Operate modern data platforms (Snowflake, BigQuery, Delta Lake) Orchestrate workflows with Airflow, Dagster, or Prefect Optimize performance (partitioning, caching, query optimization) Ensure security, encryption, and GDPR compliance Requirements Experience in data engineering, analytics engineering, or backend engineering Strong skills in SQL and Python, as well as Spark/Kafka/Flink Knowledge of modern data warehouse and lakehouse architectures Experience building ETL/ELT processes High quality mindset and a structured way of working Benefits Motivational financial package Meal tickets Medical insurance Opportunities to grow and develop in a start-up environment Dynamic and multicultural working environment Great training opportunities Benefit online platform DTSE-RO is committed to the principle of equal employment opportunity for all employees and to providing employees with a work environment free of discrimination and harassment. All employment decision at DTSE-RO are based on business needs, job requirements and individual qualifications, with no regard to race, color, religion or belief, national, social or ethnic origin, sex, age, physical, mental or sensory disability, sexual orientation and gender identity. DTSE-RO will not tolerate discrimination or harassment based on any of these characteristics. By applying for this job you accept the DT privacy statement: To process your online application we collect, process and use your personal data. We will treat your data as strictly confidential in accordance statutory provisions. By submitting your application, you consent to your data being processed electronically, including by third parties. Data is only passed on to HR service providers that have been carefully selected by Deutsche Telekom AG. For detailed information read the local data protection when applying for a job position at Deutsche Telekom Group. #LI-Hybrid