Location: Poland (Permanent Employment), work model: hybrid.
About the Role
As an ETL (Extract, Transform, Load) Tester, you'll be instrumental in ensuring accurate, reliable, and high-performing data pipelines across systems. Your work will help maintain data integrity, ensure high-quality analytics, and empower data-driven decision-making.
- Develop and execute ETL test cases and strategies
- Perform source-to-target data validation for completeness and accuracy
- Validate transformation logic and verify business rule mapping
- Conduct data quality checks and anomaly detection
- Automate ETL testing using scripting languages
- Collaborate with cross-functional teams (data engineers, developers, analysts)
- Log and manage defects using tools such as JIRA, HP ALM, or TestRail
- Document test plans, results, and audit artifacts
- Participate in performance and volume testing
- Ensure data governance and compliance (GDPR, HIPAA)
- Support CI/CD workflows by integrating ETL tests into pipelines
- Strong experience in DW testing projects.
- Testing experience with Informatica Power Center or IDMC.
- ETL Data Testing experience with SQL.
- Teradata Database SQL knowledge
- Experience with test automation tools and scripting (Python, Shell).
- Knowledge of data governance, metadata, and lineage concepts.
- Understanding of cloud platforms (Azure preferred).
- Familiarity with CI/CD tools (Git, Jenkins) for test automation integration.
- Testing experience with Snowflake.
- Experience in automation testing, scripting.
- Certifications in Informatica IDMC or related data testing tools.
- Experience with performance testing of data pipelines.
- Exposure to big data platforms and cloud-native testing frameworks.
About our Candidate Privacy Statement: https://www.cognizant.com/careers_resources/Cognizant_Candidate_Privacy_Statement_English_version.pdf
Poznaj
Cognizant Technology Solutions Poland Sp. z o.o.
COGNIZANT TECHNOLOGY SOLUTIONS POLAND SP Z O O
Cognizant is a leading IT Services provider globally, transforming Clients' business, operating and technology models for the digital era. Headquartered in the US, Cognizant is ranked on the Fortune 500 and is consistently listed among the most admired companies in the world.At Cognizant, we celebrate diversity and inclusion across our workforce and with our partners, communities and fellow racing fans. That’s why, alongside the Aston Martin Cognizant Formula One team, we work in unison for a more inclusive future. All in, all welcome.