As a recruitment company, DCG understands that every business is powered by experienced professionals. Our management style and partnership approach enable us to meet your needs and provide continuous support. Due to our ongoing growth and the large number of recruitment projects we undertake for our partners, we are currently looking for: Senior Data QA
Responsibilities:
Perform testing of data warehouses, data lakes, and data marts
Validate ETL/ELT processes and test end-to-end data flows
Conduct database testing using SQL, including complex queries with joins, unions, CTEs, and window functions
Test reports and dashboards, including work with data visualization tools (e.g., ThoughtSpot)
Validate data transformations built with dbt (Jinja templates, YAML configurations, SQL models)
Work with Snowflake-based data platforms and AWS services (S3, Athena, QuickSight)
Use Python, Jupyter, and Pandas for data validation and exploratory testing
Apply BDD practices (Cucumber) in the testing process
Support data engineering, data modeling, and data mining activities from a QA perspective
Requirements:
Understanding of data warehouses, data lakes, data marts, and core data engineering concepts
Knowledge of ETL/ELT processes and data-driven testing of end-to-end data flows
Strong experience with SQL, including aggregations, joins, unions, CTEs, and window functions
Experience with database testing, report testing, and data validation workflows
Knowledge of Snowflake and experience with dbt (Jinja templates, YAML configuration, SQL models)
Familiarity with data visualization tools (preferably ThoughtSpot)
Experience with Python, Jupyter, and Pandas for data analysis and QA tasks
Familiarity with BDD frameworks (Cucumber)
Understanding of AWS services such as S3, Athena, and QuickSight
Knowledge of data modeling, data mining, and BI/data warehouse concepts
Knowledge of English at B2 level (minimum)
Offer:
Private medical care
Co-financing for the sports card
Constant support of dedicated consultant
Employee referral program