Senior Test Engineer – Data & AI

contract: B2Brate: 145 pln/h + VATmode: 2x a month from the office, WarsawAs a Senior Test Engineer, you will be responsible for ensuring the quality, reliability, and performance of Data Hubs and data processing pipelines in Azure & Databricks. You will develop automated test frameworks, conduct regression testing, and validate large-scale data processing workflows.How you will get the job done· designing, developing, and maintaining automated test frameworks for data processing and orchestration.· conducting regression, performance, and scalability testing for data ingestion and transformation.· implementing data quality validation and anomaly detection in Azure-based data pipelines.· collaborating with Data Engineers and DevOps teams to integrate testing into CI/CD pipelines.· ensuring compliance with data security, governance, and privacy standards.· defining test strategies, best practices, and documentation for Data & AI solutionsSkills and experience you will need· strong expertise in Python, PySpark, SQL, and test automation frameworks.· experience with Azure Data Services (Databricks, Data Factory, Storage Accounts).· proficiency in testing big data pipelines, distributed systems, and ETL workflows.· hands-on experience with CI/CD tools (Azure DevOps, Jenkins) and test automation.· strong understanding of data governance, quality frameworks, and monitoring tools.· excellent problem-solving skills and ability to work in Agile/Scrum environments.Nice to Have· experience with ML model validation and AI pipeline testing· familiarity with data lineage tracking and metadata management tools