Data QA Engineer

TruelogicData Analytics

Mexico CityFull-Time

Salary not disclosed

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Job Details

Advanced ability to write and execute complex SQL queries for data verification, reconciliation, and troubleshooting.
Proven track record of validating ETL and ELT data pipelines, transformation logic, and complex data warehousing environments.
Hands-on experience testing database objects and structures, with a solid understanding of data normalization and schema validation.
Practical experience documenting full-lifecycle test plans, cases, results, and defects in JIRA or TestRail.
Hands-on experience with test automation tools and programming languages such as Python or Selenium.
Experience testing presentation layers, reports, and business logic in BI platforms such as Tableau or Power BI.
Familiarity with non-functional testing using tools like Apache JMeter for database load, stress, and performance testing.
Understanding of query execution plans, indexing strategies, and database performance tuning.

Ensure data accuracy, consistency, and completeness across pipelines by validating ETL processes, referential integrity, constraints, and data normalization.
Perform comprehensive functional testing on core database objects, including stored procedures, triggers, views, and functions.
Validate data migrations and write complex SQL queries to verify data correctness and system integrity.
Test data pipelines, transformations, and business logic within business intelligence reporting tools like Tableau and Power BI.
Build and maintain automated test scripts to execute seamless database regression and integration testing.
Identify slow-running queries, monitor execution plans, evaluate database indexing, and collaborate with DBAs to fine-tune system performance.
Partner with developers, data analysts, and product teams to track defects utilizing JIRA or TestRail.

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