Test Engineer (Back end)

To Apply for this Job Click Here The Senior Backend Data Test Engineer will be responsible for validating large-scale data systems, ensuring data accuracy, integrity, and consistency across backend platforms and corresponding frontend/UI applications. This requires deep expertise in backend database testing, ETL verification, big‑data technologies, and data quality analysis within a CMS high-priority application. The engineer will work closely with Data Coaches/Analysts/DBA and Scrum/Kanban teams to ensure alignment with program standards, backend-frontend requirements, and Agile delivery expectations. Primary 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 . Required Qualifications (Must have)* Minimum of 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. Preferred Qualifications Candidates with the following skills will receive preferential consideration:* Test case and test results documentation experience using TestRail.* Prior Federal, HHS or CMS experience * 508 compliance testing using JAWS or similar tools.* Experience with Tableau or Grafana for data visualization and monitoring* Experience performing penetration or security testing using Burp Suite or similar tools.* Experience/Familiarity developing or maintaining automated test scripts using Java, Selenium, Cucumber, or similar tools.* Experience integrating automated test suites into GitHub/Jenkins CI/CD pipelines. 54891-1462307_1790029337 To Apply for this Job Click Here