Senior Test Data Engineer

Diverse CG Sp. z o.o. Sp.k. is engaged in a large-scale digital banking programme focused on the end-to-end home-buying journey across the Nordic markets.

• 8+ years of professional experience in Test Data Management, Test Automation, or related areas
• Strong hands-on experience with Test Data Management solutions and automated test data provisioning
• Knowledge of mainframe environments and system setups
• Very good knowledge of SQL, relational databases, and database concepts
• Experience with data extraction and transformation, test data generation, masking, cloning, and subsetting
• Scripting skills in Python, PowerShell, Java or similar languages
• Experience supporting automated, integration, and end-to-end testing
• Good understanding of CI/CD processes and DevOps practices
• Experience with test automation and synthetic data generation tools
• Experience working in Agile environments
• English language proficiency at B2 level or higher

Nice to have:

• Experience with Tricentis Tosca TDM, Curiosity Software, Delphix, or Informatica TDM
• Experience with API testing
• Knowledge of Kubernetes and cloud platforms
• Experience with AI-assisted test data generation
• Experience supporting large-scale end-to-end customer journey testing
• Previous experience in the financial services or banking sector

• Design, develop and maintain reusable test data assets and automated test data provisioning solutions
• Build self-service mechanisms enabling teams to access required test data on demand
• Create synthetic test datasets, including business-realistic scenarios, edge cases, and negative test cases
• Implement data masking and anonymisation solutions compliant with GDPR and internal security policies
• Perform test data extraction, transformation, cloning, subsetting, refresh, and provisioning across non-production environments
• Support multiple teams and parallel testing activities with reliable and consistent test datasets
• Integrate test data generation and provisioning with test automation frameworks and CI/CD pipelines
• Support automated regression, integration, and end-to-end testing
• Monitor test data availability and quality, troubleshoot data-related issues, and maintain existing datasets
• Maintain documentation covering test data processes, standards, dependencies, and reusable solutions