We are seeking a detail-oriented Data Tester with strong experience in SQL, database testing, and ETL validation. The ideal candidate will be responsible for ensuring data accuracy, integrity, and quality by validating backend systems, executing complex SQL queries, and performing end-to-end data testing across multiple database platforms.
Design, develop, and execute test cases for database and data validation testing.
Perform backend data validation using complex SQL queries.
Validate ETL processes and ensure accurate data movement between source and target systems.
Test stored procedures, triggers, functions, and database objects.
Verify data integrity, consistency, and accuracy across multiple environments.
Conduct data migration testing and identify discrepancies.
Collaborate with developers, business analysts, and QA teams to resolve data-related defects.
Log, track, and manage defects using JIRA or Quality Center.
Analyze test results and provide detailed reports on data quality and testing outcomes.
Support regression, integration, and system testing activities related to database applications.
Strong SQL query writing and troubleshooting skills
Solid understanding of database concepts including Tables, Views, Joins, Indexes, Constraints, and Keys
Experience with Stored Procedures, Triggers, and Functions testing
Hands-on experience with ETL testing and data validation
Knowledge of data integrity and data migration testing
Experience performing backend database testing
Oracle
SQL Server
MySQL
PostgreSQL
Test case creation and execution
Defect lifecycle management
Experience with JIRA and/or Quality Center
Strong analytical and problem-solving skills
Excellent debugging and troubleshooting abilities
Attention to detail and data accuracy
Effective communication and collaboration skills
Experience working in enterprise data testing environments
Knowledge of software testing methodologies and SDLC/STLC
Experience with automation testing for backend or database applications is an added advantage
Exposure to Agile development methodologies is preferred
SQL
Data Validation
Database Testing
ETL Testing
Backend Testing
Oracle
SQL Server
PostgreSQL
MySQL
Stored Procedures
Triggers
Functions
Data Migration Testing
JIRA
Quality Center
Defect Tracking
Analytical & Troubleshooting Skills
QA Data Tester – SQL, ETL & Database Testing • Mississauga, ON, ca
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