Senior ETL Tester

We are looking for a highly skilled QA Tester with experience in Data Warehouse testing, specifically within the Snowflake platform, who can deliver immediate results. You will join a fast-growing project for our client from the Scandinavian banking sector, working in an international environment that values collaboration, precision, and continuous improvement. The role involves ensuring data quality, consistency, and performance across cloud-based data solutions built on Snowflake, dbt, and AWS.

Responsibilities you'll have

• Perform data warehouse testing with a focus on Snowflake and dbt

• Validate complex data flows and ensure data accuracy across multiple systems

• Write and execute SQL queries to support data validation and quality checks

• Collaborate with development teams to identify and resolve data issues

• Integrate into existing testing processes and contribute to ongoing projects

Expected competences and knowledge

• 5+ years of experience in data warehouse testing 

• Experience with AWS

• Good understanding of Snowflake: Time Travel, zero-copy cloning, and performance scaling

• Strong proficiency in SQL for querying, testing, and validating large datasets

• Ability to integrate into the existing data warehouse architecture and ETL workflows

• Experience in automating data validation processes within Snowflake

Nice to have:

• Knowledge of Python

• Experience with JavaScript or TypeScript

• Familiarity with Playwright

Technologies you'll work with

• ETL

• AWS

• Snowflake

• SQL

• Python

• JavaScript

• TypeScript

• Playwright