Aufgaben For our client, a leading company in the energy industry, we are currently looking for an experienced manual Tester Profil SQL - ability to write and execute queries for data validation JSON handling - understanding of structure and ability to validate payloads Manual testing of data pipelines - creating test cases, validating end-to-end data flows, basic understanding of ETL/ELT Azure Data Services (user level): Azure DevOps - creating test cases, test runs, defect documentation Strong manual testing experience including documentation of functional and regression tests Strong experience with Databricks Notebooks and Python/Pyspark programming Azure Data Lake / Blob Storage - reading and inspecting files advantageous Azure SQL - running queries for validation advantageous Basic Python knowledge (for simple data checks, not automation) advantageous Benefits Start date: asap Remote-option