ETL Tester
7 days ago
Location:
Minneapolis, MN (2–3 days onsite per week)
Work Authorization:
USC/GC Only
Type:
Contract
We are looking for a
Senior ETL Tester
with strong healthcare client experience in validating large datasets, automating test workflows, and ensuring the accuracy of cloud-based data pipelines. The ideal candidate is hands-on, analytical, and comfortable working across AWS data services.
Key Responsibilities
- Perform end-to-end ETL and data validation across multiple data pipelines.
- Write complex SQL queries to verify data accuracy, completeness, and transformations.
- Build Python-based test scripts to automate regression tests and data checks.
- Work across AWS services to validate data ingestion and transformation workflows (including Glue, Redshift, and DataBrew).
- Conduct data profiling, identify inconsistencies, and work with engineering teams to resolve defects.
- Document test plans, test cases, and validation logic clearly.
Required Skills
- Strong experience in ETL testing and large dataset validation
- Expert-level SQL for data comparison, transformation checks, and complex query logic
- Python scripting for automation of data tests
- Hands-on experience with AWS data tools, including
- Understanding of data warehouses, data models, and quality checks
- Ability to identify data issues, perform root cause analysis, and communicate findings clearly
Nice to Have
- Background in healthcare data (preferred but not required)
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