Senior Test Data Specialists/Engineers

b2bnetwork; Warszawa; On-site; PLN 180,000 - 240,000; Full time

Job summary

b2bnetwork is seeking a Test Data Specialist/Engineer to lead test data strategies for a Nordic home journey project. You will work with testers, developers, DevOps, and analysts to ensure on-demand, trustworthy test data; drive data masking, synthetic data generation, and CI/CD integration in an agile setup.

Candidates should have 8+ years in TDM or test automation, strong SQL, mainframe knowledge, and experience with relational databases, data masking, and data provisioning across

Qualifications

• 8+ years in Test Data Management or Test Automation.
• Strong SQL and database knowledge.
• Knowledge of mainframe systems and setups.
• Relational databases
• Data extraction and transformation
• Data masking
• Data cloning
• Data subsetting
• Hands-on implementation of TDM solutions.
• Experience working in Agile teams.
• Experience supporting: Automated testing, Integration testing, E2E testing
• Scripting skills (Python, PowerShell, Java, or similar).
• Understanding of CI/CD processes and DevOps practices.
• Synthetic data generation tools and test automation tools.
• Language: English (B2 or higher)

Responsibilities

• Test data engineering: create and maintain reusable test data assets.
• Develop automated test data provisioning solutions and self-service data delivery mechanisms.
• Data masking and compliance: implement masking and anonymization routines; ensure GDPR compliance.
• Test data creation and generation: create synthetic test datasets for edge cases and negative tests.
• Provision test data to non-production environments; refresh and clone test datasets.
• Integrate test data generation into automation frameworks; support CI/CD driven provisioning.
• Monitor data availability and quality; resolve data defects.
• Maintain available test data and document processes, standards and data dependencies.

Skills

Test Data Management

Test Automation

SQL

Mainframe knowledge

Agile experience

Scripting (Python, PowerShell, Java)

CI/CD/DevOps understanding

English (B2+)

Tools

Delphix

Kubernetes

Cloud platforms

API testing tools

Job description

Detailed description of work task to be carried out

Home journey is the full process a customer goes through when buying a home in the Nordics. Being part of this project means that you will work in a diverse, highly international environment with ambitious people, working agile, determined to reach our common goal – to meet the unique needs of our customers.
We need Test Data Specialists/Engineers to execute the test data strategy, build automated solutions, support teams daily, and ensure test data is available on demand.

The role will work closely with testers, developers, DevOps engineers, and business analysts to remove one of the largest bottlenecks in testing: obtaining and maintaining trustworthy test data.

• Test data engineering, create and maintain reusable test data assets, develop automated test data provisioning solutions, build self-service data delivery mechanisms
• Data masking and compliance, implement maksing and anonymization routines, ensure compliance with GDPR and internal policies, validate masked data quality and usability
• Test data creation and generation, create synthetic test datasets, generate test data for edge-cases and negative tests, maintain business-realistic data combinations
• Provision test data to non-production environment, referesh, clone test dataset, support parallel testing and multiple teams
• Integrate test data generation into automation frameworks, enable CI/CD driven test data provisioning, support automated regression execution
• Monitor data availability and quality, resovle data related defects and issues
• Maintain available test data, document processess, standards and data dependencies

Must-have knowledge and experience

• 8+ years in Test Data Management or Test Automation.
• Strong SQL and database knowledge.
• Knowledge of mainframe systems and set ups

Experience with:

• Relational databases
• Data extraction and transformation
• Data masking
• Data cloning
• Data subsetting
• Hands-on implementation of TDM solutions.
• Experience working in Agile teams.
• Experience supporting:
• Automated testing
• Integration testing
• E2E testing
• Scripting skills (Python, PowerShell, Java, or similar).
• Understanding of CI/CD processes and DevOps practices.
• Synthetic data generation tools and test automation tools.
• Language: English (B2 or higher)

Nice-to-have knowledge and experience

• Curiosity Software
• Delphix
• Synthetic data generation tools.
• API testing experience.
• Kubernetes and cloud platform knowledge.
• AI-assisted test data creation.
• Experience supporting large-scale E2E customer journey testing.