Data Quality Specialist

summ-it sp. z o.o. manages over 10,000 database systems for clients, working with databases totaling petabytes in size. The company supports employee development through participation in industry conferences, training, and workshops, and offers a non-corporate structure.

• Minimum 3 years of experience in data testing.
• Knowledge of Azure Databricks (notebook, job, Spark cluster).
• Knowledge of Azure Data Factory (pipelines, datasets, linked services, monitoring).
• Knowledge of Azure Synapse (Dedicated pool).
• Knowledge of tabular models (Analysis Services) and Power BI (data lineage, semantic model, connections).
• Proficiency in SQL (data quality verification, test query preparation).
• Understanding of ETL processes.
• Knowledge of test automation and CI/CD tools (especially Azure DevOps, TestPlans).
• English language proficiency at minimum B2 level.

• Monitor and ensure data quality in systems and reports.
• Design and execute data quality tests (completeness, consistency, correctness).
• Verify data between different systems (source vs target).
• Analyze and identify errors and anomalies in data.
• Collaborate with Data Engineering, BI, and business teams to resolve data issues.
• Participate in data validation processes in ETL/ELT pipelines.
• Create and maintain SQL queries for data quality control.
• Automate data quality tests using Python or dedicated tools.
• Document processes, tests, and detected issues.
• Support implementation of standards and best practices in data quality.

Thank you for your interest and application. Only selected candidates will be contacted.