Senior ETL Test Engineer

• Strong experience in ETL Testing, Data Warehouse Testing, Data Validation and Data Quality Assurance.

• Hands-on experience with SQL, complex queries, joins, stored procedures, views, triggers and database testing.

• Experience in validating source-to-target mappings, transformation rules and business logic implementations.

• Strong knowledge of Data Warehouse concepts including Star Schema, Snowflake Schema, Fact Tables and Dimension Tables.

• Experience working with ETL tools such as Informatica, Talend, SSIS, DataStage, Azure Data Factory or equivalent technologies.

• Hands-on experience in validating large-scale data migration projects and enterprise data integration initiatives.

• Experience in Data Reconciliation, Data Verification and Data Consistency Testing across multiple systems.

• Ability to create ETL test plans, test strategies, test cases, test scenarios and test execution reports.

• Experience in validating data extraction, transformation and loading processes for enterprise applications.

• Strong understanding of Data Profiling, Data Cleansing and Data Governance principles.

• Experience in validating batch processing systems, scheduled jobs and automated data pipelines.

• Knowledge of Business Intelligence reporting validation and dashboard data verification.

• Experience in testing data integration between ERP, CRM, Finance, Retail and Enterprise applications.

• Ability to identify data anomalies, transformation issues and root causes of data quality defects.

• Experience with defect management tools such as JIRA, Azure DevOps or equivalent platforms.

• Strong understanding of Software Testing Life Cycle (STLC), Software Development Life Cycle (SDLC) and Agile methodologies.

• Experience in validating data accuracy, completeness, integrity and consistency across multiple environments.

• Hands-on experience with performance testing of ETL jobs and optimization of large-volume data processing.

• Knowledge of cloud-based data platforms such as AWS, Azure, Google Cloud Platform (GCP), Snowflake or Databricks.

• Experience in validating REST APIs, data services and integration interfaces supporting ETL workflows.

• Ability to analyze business requirements, technical specifications and data mapping documents.

• Experience in enterprise reporting validation using Power BI, Tableau, QlikView or similar analytics platforms.

• Strong analytical, troubleshooting and problem-solving skills with attention to detail.

• Excellent communication skills and ability to work closely with Data Engineers, Business Analysts, Architects and Stakeholders.

• Ability to independently manage ETL testing activities and deliver high-quality data validation solutions aligned with ELAARSONs Data Analytics and Quality Engineering services.

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