Senior ETL QA Engineer: Data Migration & Validation

Nexwave; Chicago (IL); On-site; USD 62,000 - 79,000; Full time

Job summary

Nexwave is seeking an experienced Data Migration & Transformation Validation specialist to lead testing for large-scale migrations in Chicago, IL. You will validate data across source and target systems, develop SQL queries and automation scripts, and test ETL/ELT processes and transformation rules to ensure data quality and readiness.

Ideal candidates have 12+ years in data migration/validation, strong SQL skills, and the ability to troubleshoot defects while collaborating with data engineers,

Qualifications

• 12+ years of data migration or validation experience.
• Strong SQL and scripting for data reconciliation.
• Experience validating data accuracy, completeness, and integrity across source and target systems.
• Ability to test ETL/ELT processes, data mappings, and business logic.

Responsibilities

• Lead testing for large-scale data migration and transformation projects.
• Validate data accuracy, completeness, consistency, and integrity across systems.
• Develop SQL queries and automation scripts for reconciliation and validation.
• Test ETL/ELT processes, mappings, and transformation rules.

Skills

SQL queries

Data reconciliation

Automation scripting

ETL testing

Data quality

Job description

Nexwave is seeking an experienced Data Migration & Transformation Validation specialist to lead testing for large-scale migrations in Chicago, IL. You will validate data across source and target systems, develop SQL queries and automation scripts, and test ETL/ELT processes and transformation rules to ensure data quality and readiness.

Ideal candidates have 12+ years in data migration/validation, strong SQL skills, and the ability to troubleshoot defects while collaborating with data engineers,