Senior Data QA Engineer - Data Warehouse & ETL Expert

Creative Solutions Services, LLC; Charlotte (NC); On-site; USD 82,656 - 96,432; Full time

Benefits offered by this job

Medical, dental, and vision insurance

Flexible spending or Health Savings

AD&D insurance

401k program

Employee assistance

Voluntary/Legal benefits

Job summary

NTT DATA is seeking a Senior QA Data Engineer in Charlotte, NC to design and execute test plans for data transformations and ingestion processes. You will validate data across base tables, tabular cubes, and data warehouses, writing SQL and Python validation scripts and DAX queries for cube comparisons.

The role emphasizes teamwork, mentoring, and end-to-end data quality assurance. Responsibilities include leading migrations, root cause analysis, and expanding automated testing assets within

Qualifications

• 5–7 years of QA experience with data warehouse/testing focus.
• 3+ years hands-on testing with Snowflake and Databricks notebooks/SQL/PySpark.
• 5–7 years of Python for validation scripting and automation.
• 5–7 years of advanced SQL with joins, aggregations and window functions.
• Strong ability to write detailed test plans and test cases.
• Experience performing root cause analysis on data issues.
• Experience working in Jira-driven QA workflows.

Responsibilities

• Create comprehensive test plans and cases for new transformations and ingestions.
• Execute advanced data validation against source and target outputs.
• Write Python and SQL scripts to compare data warehouse results.
• Author DAX queries for tabular cubes to verify data extracts.
• Lead testing of transformations and migrations across Snowflake and Databricks.
• Document RCA findings and partner with developers to resolve issues.
• Enhance automated test scripts and frameworks under guidance.
• Receive Jira assignments, kick off plans, and track results.
• Mentor QA team members on SQL, Python, and validation techniques.

Skills

QA experience

Data warehouse testing

Snowflake

Databricks

Python

SQL

Test plans

Root cause analysis

Jira

Tools

Azure Synapse

DAX

Job description

NTT DATA is seeking a Senior QA Data Engineer in Charlotte, NC to design and execute test plans for data transformations and ingestion processes. You will validate data across base tables, tabular cubes, and data warehouses, writing SQL and Python validation scripts and DAX queries for cube comparisons.

The role emphasizes teamwork, mentoring, and end-to-end data quality assurance. Responsibilities include leading migrations, root cause analysis, and expanding automated testing assets within