ETL Tester - Data Testing
Zurich, Switzerland
Fixed term role for 6 months with potential extension
Cognizant is looking for an experienced ETL Tester with strong automation experience to support enterprise data platforms and pipelines.
Key Responsibilities
- Design and execute test cases for data ingestion, transformation, validation, and reconciliation across ETL/ELT pipelines.
- Build and maintain automation frameworks for data testing and regression testing.
- Validate data quality using SQL and large-scale datasets.
- Integrate automated tests into CI/CD pipelines.
- Collaborate with Data Engineers, QA teams, and business stakeholders.
- Analyze and troubleshoot test failures and data quality issues.
Required Skills
- Strong understanding of Data Warehouses, Data Lakes, ETL/ELT pipelines, and Data Models.
- Solid experience in ETL testing, including source-to-target validation and data reconciliation.
- Hands-on experience with test automation, ideally building frameworks from scratch.
- Strong SQL and data validation expertise.
- Programming skills in Python, Java, or similar.
- Experience with CI/CD tools and automated test execution.
- Excellent analytical and problem-solving skills.
Nice to Have
- Snowflake, Databricks, Azure Synapse, BigQuery, or similar cloud data platforms.
- Great Expectations, dbt Tests, PyTest, Selenium, or equivalent tools.
- Experience in Banking, Financial Services, or large enterprise data environments.
What We're Looking For
This role is ideal for someone who understands enterprise data platforms, not just traditional ETL testing. We need a detail‑oriented ETL Tester with strong automation skills who can build scalable testing solutions and is passionate about data quality.
#J-18808-Ljbffr
ETL Tester with automation experience in Zürich Arbeitgeber: Cognizant
Als Arbeitgeber im Bereich der pharmazeutischen Fertigung bieten wir Ihnen die Möglichkeit, in einem dynamischen und innovativen Umfeld zu arbeiten, das auf Teamarbeit und kontinuierliche Verbesserung setzt. Unsere Unternehmenskultur fördert die persönliche und berufliche Weiterentwicklung, während wir gleichzeitig ein flexibles Arbeitsumfeld bieten, das auf die Bedürfnisse unserer Mitarbeiter eingeht. Mit einer starken Ausrichtung auf agile Praktiken und direkter Kundeninteraktion sind wir bestrebt, unseren Mitarbeitern bedeutungsvolle und erfüllende Karrieremöglichkeiten zu bieten.
