Senior Backend Data QA Engineer — Big Data & CMS

Beacon Hill Staffing Group, LLC; Honolulu (HI); On-site; USD 120,000 - 170,000; Full time

Job summary

Beacon Hill Technologies in the United States seeks a Senior Backend Data Test Engineer to validate large-scale data systems and ensure data integrity across backend platforms and frontend applications.

You will perform ETL verification, work with Databricks, Snowflake, and PostgreSQL, and collaborate with analysts, DBAs, and developers in an Agile/SAFe environment to ensure quality and compliance throughout the SDLC.

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.

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

Backend testing

SQL

PostgreSQL

Snowflake

Databricks

ETL verification

Agile/SAFe

Jira/Confluence

Data quality

Tools

Jira

Confluence

Slack

GitHub

Job description

Beacon Hill Technologies in the United States seeks a Senior Backend Data Test Engineer to validate large-scale data systems and ensure data integrity across backend platforms and frontend applications.

You will perform ETL verification, work with Databricks, Snowflake, and PostgreSQL, and collaborate with analysts, DBAs, and developers in an Agile/SAFe environment to ensure quality and compliance throughout the SDLC.