Senior Data QA Engineer — Snowflake & dbt Expert

Ethereum Technologies; Sunnyvale (CA); On-site; USD 160,000 - 210,000; Full time

Job summary

Ethereum Technologies in Sunnyvale, CA seeks a Senior Data QA / Tester to validate data pipelines and dbt/Snowflake transformations. Strong hands-on data validation, SQL testing, and automated frameworks are required.

Responsibilities include designing SQL-based tests, building automated data testing frameworks in Python, and ensuring data accuracy, completeness and reliability across large datasets. Experience with Git workflows and Fivetran a plus.

Qualifications

• 10+ years of experience in Data Testing / Data QA / Data Engineering Validation roles.
• Strong SQL expertise with experience writing complex validation queries.
• Hands-on experience testing dbt-based transformations, including schema tests, custom tests, models, snapshots, and transformation validation.
• Understanding of dbt project structure and workflows.
• Strong Snowflake experience, including data validation, reconciliation, micro-partitions, incremental loads, query behavior, and large-scale datasets.
• Experience building automated data testing frameworks using Python and SQL.
• Hands-on experience with Git workflows, version control, pull requests, and code reviews.

Responsibilities

• Validate data pipelines and transformations developed by data engineering teams to ensure accuracy, completeness and reliability.
• Design and execute SQL-based tests and automated data quality checks for Snowflake/dbt pipelines.
• Collaborate with data engineers to implement robust data validation and reconciliation processes.
• Contribute to building scalable data testing frameworks and maintain test code in Git repositories.

Skills

SQL queries

dbt testing

Data validation

Python

Git workflows

Tools

dbt

Snowflake

Fivetran

Python

Job description

Ethereum Technologies in Sunnyvale, CA seeks a Senior Data QA / Tester to validate data pipelines and dbt/Snowflake transformations. Strong hands-on data validation, SQL testing, and automated frameworks are required.

Responsibilities include designing SQL-based tests, building automated data testing frameworks in Python, and ensuring data accuracy, completeness and reliability across large datasets. Experience with Git workflows and Fivetran a plus.