ETL Tester - Senior Engineer

ETL Tester - Senior Engineer Job Description

• Data Testing Strategy Execution: Design, develop, and execute comprehensive test plans and test cases for data-centric applications, ETL processes, data warehouses, data lakes, and reporting solutions.
• SQL-Driven Validation: Utilize advanced SQL queries to perform complex data validation, data reconciliation, data integrity checks, and data quality assurance across various financial data sources.
• ETL Testing: Conduct thorough testing of ETL (Extract, Transform, Load) processes, ensuring data is accurately extracted, transformed according to business rules, and loaded correctly into target systems.
• Data Quality Assurance: Implement and monitor data quality checks, identify data discrepancies, anomalies, and inconsistencies, and work with development and business teams to resolve issues.
• Performance Testing (Data Focus): Contribute to performance testing efforts for data pipelines and database operations, ensuring optimal query and data load performance.
• Test Data Management: Create and manage robust test data sets for various testing phases, including positive, negative, and edge case scenarios.
• Defect Management: Identify, document, track, and re-test defects in data, collaborating closely with development and data engineering teams for timely resolution.
• Documentation Reporting: Maintain clear and concise documentation of test plans, test cases, test results, and data quality reports. Provide regular status updates to stakeholders.
• Collaboration: Work effectively with business analysts, data architects, data engineers, and project managers to understand data flows, business requirements, and ensure data quality standards are met.
• Process Improvement: Proactively identify opportunities for process improvements in data testing methodologies and tools.
• Global Team Collaboration: Provide consistent overlap with EST working hours (until noon EST) to facilitate effective communication and collaboration with US-based teams.

Required Skills Experience:

• Experience: 5-8 years of hands-on experience in Data Quality Assurance, Data Testing, or ETL Testing roles.
• SQL Expertise:
  • Advanced proficiency in SQL: Ability to write complex queries, subqueries, analytical functions (Window functions), CTEs, and stored procedures for data validation, reconciliation, and analysis.
  • Experience with various SQL databases (e.g., SQL Server, Oracle, PostgreSQL, MySQL, Snowflake, BigQuery).
  • Strong understanding of database concepts: normalization, indexing, primary/foreign keys, and data types.
• Data Testing Methodologies: Solid understanding of data warehousing concepts, ETL processes, and various data testing strategies (e.g., source-to-target mapping validation, data transformation testing, data load testing, data completeness, data accuracy).
• Domain Expertise:
  • Strong understanding and proven experience in Risk and Finance IT domain: Familiarity with financial data (e.g., trading data, market data, risk metrics, accounting data, regulatory reporting).
  • Knowledge of financial products, regulations, and risk management concepts.
  • Analytical Problem-Solving Skills: Excellent ability to analyze complex data sets, identify root causes of data issues, and propose effective solutions.
  • Communication: Strong verbal and written communication skills to articulate data issues and collaborate with diverse teams.
  • Time Zone Overlap: Proven ability and willingness to provide consistent working hour overlap until noon EST to collaborate with teams in the Eastern Standard Time zone.

Mandatory Competencies

• ETL - ETL - SSIS
• ETL - ETL - Tester
• QA - Risk Management
• QA/QE - QA Automation - Basic Build, Deployment and CI/CD
• QA/QE - QA Manual - Test Case Creation, Execution, Planning, Reporting with risks/dependencies