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Role: ETL Test Manager

Location: Stamford, CT (Hybrid 2 days a week)

Type: 12+ months contract

Note: No Lead or tester. only Manager-level candidate

Job Description

We are seeking a highly experienced and technically proficient ETL Test Manager with 15+ years of experience in software testing, specializing in ETL processes, Snowflake data warehousing, reporting/BI validation, and test automation. This leadership role will drive the QA strategy, execution, and governance across complex data ecosystems, ensuring data accuracy, performance, and business alignment.

Key Responsibilities

Test Strategy & Planning

Define and implement robust test strategies for

ETL pipelines (data ingestion, transformation, and loading)

Snowflake data warehouse (schema validation, data integrity, performance)

BI/reporting tools (Power BI/Tableau/QlikView)

Automation frameworks for data and API validation

Develop detailed test plans, test cases, and test data aligned with business and technical requirements.

Estimate testing efforts, allocate resources, and manage timelines across multiple concurrent projects.

Test Execution & Quality Assurance

Lead and oversee the execution of

Functional testing

Integration testing

Regression testing

Validate data accuracy, completeness, and consistency across source systems, staging layers, and Snowflake.

Ensure business logic is correctly implemented in reports and dashboards.

Perform root cause analysis of defects and coordinate with development and data engineering teams for resolution.

Automation & Optimization

Design and implement automated test suites for

Data validation using SQL, Python.

Integrate automated tests into CI/CD pipelines to support continuous testing and faster releases.

Continuously evaluate and improve test coverage, efficiency, and reliability.

Stakeholder Collaboration

Collaborate with cross-functional teams including data engineers, BI developers, product owners, and business analysts.

Participate in Agile ceremonies such as sprint planning, reviews, and retrospectives.

Provide regular updates on test progress, risks, and quality metrics to stakeholders and leadership.

Governance & Best Practices

Establish and enforce QA standards, templates, and documentation practices.

Ensure compliance with data governance, privacy, and security standards.

Maintain traceability between business requirements, test cases, and defects.

Required Skills & Experience

15+ years of experience in software testing, with a strong focus on data and analytics platforms.

Proven expertise in ETL testing, data validation, and data quality assurance.

Deep hands-on experience with Snowflake including querying, performance tuning, and schema validation.

Advanced SQL skills for complex data validation and transformation logic.

Experience testing BI/reporting tools such as Power BI, Tableau.

Proficiency in test automation tools

Python/SQL scripts for data testing

Familiarity with data integration tools like Informatica, Talend Etc.

Experience with test management tools Jira

Strong understanding of data warehousing, data modeling, and data lake architectures.

Regards,

Karthick Ramasamy

Client Relationship Manager / Talent Acquisition

Rohnium Inc

MBE, DBE & SBE Certified Company

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Website

ETL Test Manager

Job Type