Data QA Engineer: ETL & Snowflake Quality Assurance

Sii Poland; Łódź; On-site; PLN 120,000 - 180,000; Full time

Benefits offered by this job

Centre of internal trainings

Medical care

Profit sharing

Great Place to Work

Job summary

Sii Poland is seeking an experienced Data QA Specialist to join a global team focused on data-driven initiatives. You will validate data quality, test ETL processes, and ensure reliable data pipelines across multiple projects.

The role requires strong SQL skills and Snowflake experience, plus the ability to adapt to various business domains while maintaining data accuracy and consistency. A collaborative environment and cross-functional teamwork are core to the role.

Qualifications

• 3+ years of experience as a Data QA Engineer or Data Tester.
• Strong data testing with ETL and data warehouse validation.
• Proficient in SQL and Snowflake.
• Experience with data reconciliation and data pipelines.

Responsibilities

• Test data solutions, ETL processes, and data pipelines.
• Validate data quality, consistency, and accuracy across sources.
• Test data warehouse and Snowflake implementations.
• Perform data reconciliation and identify quality issues.
• Create and maintain test scenarios and documentation.
• Collaborate with Data Engineers, Developers, and stakeholders.

Skills

Data testing

ETL testing

Data quality checks

SQL

Snowflake

Tools

Python

Job description

Sii Poland is seeking an experienced Data QA Specialist to join a global team focused on data-driven initiatives. You will validate data quality, test ETL processes, and ensure reliable data pipelines across multiple projects.

The role requires strong SQL skills and Snowflake experience, plus the ability to adapt to various business domains while maintaining data accuracy and consistency. A collaborative environment and cross-functional teamwork are core to the role.