Senior Test Engineer (SQL Database)

Stelfox is partnering with a leading Dublin-based organisation seeking an experienced Senior Test Engineer (SQL Database) to join a large-scale technology programme on a long-term contract basis.

Please Note: This is not a pure Automation Test Engineer role. We are specifically looking for candidates with strong hands-on experience in:

• SQL query writing and analysis
• Database testing and data validation
• ETL, data migration, and data quality testing
• Understanding of data flows and data integrity processes

• Lead test planning, test design, execution, and defect management activities
• Perform end-to-end ETL, data migration, data conversion, and data quality testing
• Design and execute comprehensive test cases and test scenarios
• Validate large data sets using complex SQL queries and database testing techniques
• Collaborate with development, production support, change management, and business teams
• Drive QA delivery across multiple releases and project workstreams
• Develop and maintain test plans, test scripts, and traceability documentation
• Work across Agile and Waterfall delivery environments
• Support continuous improvements in quality assurance practices and testing processes
• Contribute to automation and AI-enabled testing initiatives where appropriate

• 5+ years of hands-on Software Testing and Quality Assurance experience
• Strong SQL skills, including writing complex queries and data validation
• Proven experience in database testing and data quality verification
• Extensive experience with ETL Testing, Data Migration Testing, and Data Conversion Testing
• Experience managing end-to-end testing cycles and defect reporting
• Strong understanding of test methodologies, test design techniques, and QA best practices
• Experience working within Agile software delivery teams
• Familiarity with Unix/Linux environments
• Excellent communication and stakeholder management skills

• Experience with automation testing tools such as Playwright, Tosca, or similar
• Exposure to AI-assisted testing tools and technologies, including GitHub Copilot
• Experience supporting enterprise-scale data transformation programmes

Stelfox is fully compliant with GDPR regulations and you can read more in our privacy policy here:

Your shared data will not be disclosed or transferred to a third party data controller or data processor located outside the EEA unless we have obtained your express consent.

We look forward to working with you.