Short JD / Mandatory skills: particularly the hands-on Data Warehouse/ETL testing, advanced SQL, Snowflake, and relevant Python-based data automation experience expected for this role

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Detailed JD:
Automation Test Lead

We are looking for a highly skilled Automation Test Lead with strong hands-on experience in Data Warehouse, ETL/ELT and Data Platform testing. The candidate should have proven expertise in Python-based test automation framework development, advanced SQL and data validation, along with experience leading testing initiatives and guiding technical solutions.

The idóneo candidate should be able to design, build, enhance and maintain scalable automation frameworks for complex data-testing requirements and work closely with Data Engineers, Architects and other technical teams.

Key Responsibilities
1. Data & ETL Testing
• Lead end-to-end testing of Data Warehouse, ETL/ELT and data integration pipelines.
• Validate data flow across source, staging, transformation and target layers.
• Design and execute source-to-target validation,



data reconciliation and transformation testing.
• Validate full, incremental and delta data loads.
• Perform testing of large-volume datasets and complex data scenarios.
• Identify data integrity, completeness, duplication and transformation issues.

2. Test Automation Framework Development
• Design, develop and maintain Python-based test automation frameworks and reusable libraries for data validation.
• Enhance existing automation frameworks to support evolving business and technical requirements.
• Develop reusable utilities for data comparison, reconciliation, validation and reporting.
• Apply automation framework best practices, including modularity, maintainability, scalability and exception handling.
• Evaluate opportunities to improve automation coverage and reduce manual validation effort.

3. Advanced SQL & Data Validation
• Develop complex SQL queries for data validation and reconciliation.
• Perform validation us

📌 Quality Assurance Automation Engineer (España)
🏢 Virtusa
📍 España