Diatom Technologies
Test Manager
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ETL Test Manager / Test Lead — UK, Remote (Contract)
Contract: 12m (Extension Possible)
Role: Remote (UK)
Rate: Up to €400/day (Inside IR35)
Immediate start
We are urgently hiring an ETL Test Manager / Test Lead for a contract role with a leading financial services organisation based in Dublin, Ireland. This is fully remote, UK-based, with an immediate start.
About the Role
You will lead end-to-end ETL testing for Data Warehouse and Business Intelligence projects, owning test strategy, execution, and delivery across a complex data environment.
Key Responsibilities
- Lead end-to-end ETL testing activities for Data Warehouse and Business Intelligence projects
- Analyze business requirements, source-to-target mappings, and data models to define comprehensive test strategies
- Design, develop, and review ETL test cases, test scenarios, and test scripts
- Validate data transformations, aggregations, and business rules across source and target systems
- Perform full Data Warehouse testing scope: ETL Testing, Data Migration Testing, Data Reconciliation Testing, Data Quality Testing, Regression Testing, System Integration Testing (SIT), User Acceptance Testing (UAT)
- Create and execute complex SQL queries for backend data validation in Teradata
- Identify, analyze, and track defects through resolution
- Coordinate with Developers, Data Architects, Business Analysts, Project Managers, and Business users
- Lead test planning, estimation, execution, defect management, and status reporting
- Mentor and guide ETL testers and junior QA team members
- Ensure adherence to QA processes, standards, and best practices
- Participate in release planning, risk assessment, and production validation activities
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Requirements
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- Strong hands-on experience with Teradata and complex SQL for data validation
- Proven ETL and Data Warehouse/BI testing background
- Experience with source-to-target mapping, data reconciliation, and data migration testing
- Experience mentoring or leading junior testers
Note: Only candidates meeting all the essential criteria should apply.
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