Data Quality Engineer

Appsierra Group; Utrecht; On-site; EUR 55,000 - 75,000; Full time

Job summary

Appsierra Group is seeking an experienced IT Software Quality Engineer to ensure data quality across complex data platforms, ETL pipelines, and cloud-based ecosystems in the Netherlands. The role focuses on test planning, execution, and reporting with a strong emphasis on ETL testing, data validation, and API testing.

The ideal candidate has advanced SQL skills, manual testing experience, and familiarity with Azure DevOps.

Qualifications

• Must have strong ETL/Data testing experience.
• Advanced SQL skills required.
• Manual testing experience required.
• Experience with Azure DevOps for test planning/execution and CI/CD workflows.
• Good understanding of ETL frameworks and data platforms.

Responsibilities

• Plan and execute data quality tests across ETL pipelines.
• Perform SQL data analysis to validate data accuracy.
• Develop and maintain automated tests for data validation and APIs.
• Coordinate testing across cloud/data platform environments (Azure).
• Collaborate with stakeholders to report defects and ensure data quality.

Skills

ETL Testing

SQL

Manual Testing

Agile

Test Automation

APIs

Data Validation

Tools

Azure DevOps

Azure Data Factory

Databricks

Python-based test automation

Job description

We are seeking an experienced IT Software Quality Engineer to join our team. The role focuses on ensuring data quality across complex data platforms, ETL pipelines, and cloud-based ecosystems.

Key responsibilities

• ETL & Data Validation
• Test Planning & Execution
• SQL & Data Analysis
• Test Automation
• Cloud & Data Platform Testing
• API & Integration Testing
• Defect Management
• Reporting & Stakeholder Communication

Required qualifications

• Strong experience in ETL Testing / Data Testing
• Advanced SQL skills
• Manual testing experience
• Experience with Azure DevOps
• Good understanding of ETL frameworks
• Experience working within Agile development environments

Nice to have

• Experience with Python-based test automation
• Experience with Azure data technologies (Data Factory, Databricks, Data Lake)
• Experience in Big Data testing
• Familiarity with BI / Reporting validation