Trainee Data Engineer (with German) @ Innowise

Innowise

Poland· IT September 19, 2026

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DataTraineeEngineerGermanInnowiseBasicdatabasePythonSQLPandasNumPylibraries

About the role

Basic requirements: Knowledge of Python, SQL, experience with Pandas or NumPy libraries Knowledge of database fundamentals: types of database relationships, ACID principles, relational vs NoSQL databases, data normalization and denormalization, row-based vs columnar data storage Knowledge of basic Big Data concepts — OLAP vs OLTP, ETL vs ELT, Data Warehouse, Data Lake, Data Lakehouse Understanding of data modeling: Inmon vs Kimball (vs Data Vault approaches), Star/Snowflake schema, Fact/Dimensi…

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