DWH QA Tester (Snowflake & AWS)

For our Client from banking industry we are looking for🔹 DWH QA Tester (Snowflake&AWS) 🔹

Start date: 1.10.2026

Possible locations: Gdańsk/Gdynia. Warsaw and Łódź can be considerd as well. Hybrid setup: 2 days int he office per week. It can be increased to 3 days.

Daily tasks

• A highly skilled QA Tester with experience in automation and Data Warehouse testing, specifically within the Snowflake platform, who can deliver immediate results, experienced in working with AI tools.
• Automation tester should be able to quickly integrate into ongoing data testing processes, validate complex data flows, ensure data accuracy, and collaborate with development teams to meet project deadlines.
• This role requires a strong background in data warehouse testing, SQL expertise, dbt testing and experience with Snowflake.

Requirements

Proven experience in automation, data warehouse testing , with a focus on Snowflake and AWS . Strong proficiency in SQL for querying, testing, and validating large datasets Familiarity with Snowflake-specific features such as Time Travel, zero-copy cloning, and scaling performance. Quickly understand and integrate into the existing data warehouse architecture and workflows. Create and support for automating data validation processes in Snowflake

Nice-to-have knowledge and experience Python Javascript/Typescript Playwright

Must have: Quality assurance, Testing, Test strategy, Agile, SQL, Snowflake, AWS, Data warehouse, Test automation, Time Travel, zero-copy cloning

Nice to have: Python, Javascript/Typescript, Playwright