Senior Data QA | Snowflake & dbt Validation Lead

Quantum Technologies. LLC; Sunnyvale (CA); On-site; USD 140,000 - 190,000; Full time

Job summary

Quantum Technologies. LLC seeks a Senior Data QA/Tester to validate Snowflake/dbt data pipelines and transformations. You will ensure accuracy, completeness, and quality across data flows built by data engineering teams.

The ideal candidate has 10+ years in data testing, strong SQL, dbt validation skills, and experience building automated testing frameworks with Python. Collaborative, with Git-based workflows and code reviews.

Qualifications

• 10+ years in Data Testing / Data QA / validation roles.
• Strong SQL with complex validation queries.
• Hands-on testing of dbt-based transformations (schema/tests/models).
• Understanding dbt project structure and workflows.
• Snowflake experience: validation, reconciliation, micro-partitions.
• Experience building automated data testing frameworks with Python/SQL.
• Hands-on Git workflows, PRs, and code reviews.

Responsibilities

• Validate data pipelines and transformations for accuracy and reliability.
• Develop and maintain automated data tests in Python/SQL.
• Collaborate with data engineering to improve data quality controls.
• Validate Fivetran ingestion as needed and monitor data lineage.

Skills

SQL

dbt testing

Data QA

Automation

Git workflows

Education

Bachelor's or higher in CS/IS or related field

Tools

dbt

Snowflake

Python

Fivetran

Job description

Quantum Technologies. LLC seeks a Senior Data QA/Tester to validate Snowflake/dbt data pipelines and transformations. You will ensure accuracy, completeness, and quality across data flows built by data engineering teams.

The ideal candidate has 10+ years in data testing, strong SQL, dbt validation skills, and experience building automated testing frameworks with Python. Collaborative, with Git-based workflows and code reviews.