Senior Backend Data Test Engineer: ETL & Data Quality

Beacon Hill Staffing Group, LLC; Sacramento (CA); On-site; USD 120,000 - 180,000; Full time

Job summary

Beacon Hill Staffing Group is seeking a Senior Backend Data Test Engineer to validate large-scale data systems and ensure data accuracy across backend platforms and frontend/UI integrations. You will work with Data Coaches/Analysts/DBA and Scrum/Kanban teams to align with program standards and Agile delivery.

The role requires deep expertise in ETL verification, Databricks/Snowflake/PostgreSQL testing, and data quality analysis within CMS applications, with responsibilities spanning test

Qualifications

• Minimum 5+ years of direct experience as a Backend/Data Tester.
• Strong expertise in backend database testing using PostgreSQL, Snowflake, and advanced SQL.
• Experience performing data validation within a big-data environment (Databricks, Snowflake, etc.).
• Proficiency with collaboration tools such as Jira, Confluence, and Slack.
• Solid experience working within Agile or SAFe methodologies.
• Hands-on experience writing user stories, defect tickets, and clear acceptance criteria.
• Ability to create detailed test cases based on user stories and functional requirements.
• Strong communication skills with the ability to collaborate effectively with Product Owners, DBAs, and Developers.
• Proven ability to work independently, take initiative, and manage tasks with minimal direction.

Responsibilities

• Perform comprehensive ETL and backend data validation across big-data technologies including Databricks, Snowflake, PostgreSQL, and related platforms.
• Analyze, interpret, and validate complex CMS datasets, including Shared Systems Claims, Final Action Indicator logic, Provider data, and Beneficiary data etc.
• Validate data sourced from CMS's Integrated Data Repository
• Conduct detailed data comparison and reconciliation between backend datasets (PostgreSQL/Snowflake) and corresponding Frontend/UI outputs and/or Databricks Unity Catalog results.
• Collaborate with Business Analysts, DBAs, Developers, DevOps engineers, and Scrum/Kanban teams to ensure system reliability, data accuracy, and optimal performance.
• Ensure adherence Testing Framework standards, organizational SDLC processes, quality procedures, and regulatory compliance requirements.
• Participate in functional UI validations as needed to support end-to-end data integrity across user-facing components.
• Independently develop, execute, and maintain detailed backend test plans, test cases, and validation scenarios with zero or minimal supervision.
• Design and execute API-based test scenarios to validate backend services and data flows.
• Actively participate in Agile ceremonies .

Skills

Communication

Agile

Test planning

Test cases

Collaboration

Tools

PostgreSQL

Snowflake

Databricks

Tableau

Grafana

Burp Suite

Java

Selenium

Cucumber

GitHub

Jenkins

Job description

Beacon Hill Staffing Group is seeking a Senior Backend Data Test Engineer to validate large-scale data systems and ensure data accuracy across backend platforms and frontend/UI integrations. You will work with Data Coaches/Analysts/DBA and Scrum/Kanban teams to align with program standards and Agile delivery.

The role requires deep expertise in ETL verification, Databricks/Snowflake/PostgreSQL testing, and data quality analysis within CMS applications, with responsibilities spanning test