Data Quality Engineer

Data Validation Lead

We are seeking a highly experienced Data Validation Lead with 12+ years of expertise in Data Warehousing, Data Quality, and Data Engineering. The ideal candidate will have deep technical proficiency in SQL, Oracle, Big Query, and hands-on experience with Data Validation Tool. This role focuses on ensuring data integrity during system cutovers and migrations, troubleshooting discrepancies, and driving continuous improvement in data quality frameworks.

Key Responsibilities:

• Design and implement robust data validation processes and scripts for source-to-target comparison during system cutovers and separations.
• Write, optimize, and execute complex Oracle, SQL, and Big Query queries and stored procedures across heterogeneous database environments.
• Perform schema and count validation, including record counts, schema fidelity, data types, and key relationships post-migration.
• Develop validation checks to confirm business transformation logic and custom mappings are correctly applied.
• Investigate and resolve data discrepancies, performing root cause analysis (RCA) for mismatches between source and target systems.
• Collaborate with Data Engineering, Application Development, and Business teams to communicate and resolve data quality issues.
• Maintain detailed logs of identified data issues, including reproduction steps and resolution progress.
• Leverage Data Validation Tool (Ignition) for validation and reporting.
• Contribute to automation of data validation test cases and reporting metrics.
• Establish KPIs for measuring data quality and migration success.

Required Qualifications:

• Minimum of 12+ years of experience in Data Warehousing, Data Quality, or Data Engineering with emphasis on data validation.
• Expert-level proficiency in SQL, Oracle, and Big Query for data comparison and reconciliation.
• Deep knowledge of the full data migration lifecycle, including ETL/ELT processes.
• Proven ability to troubleshoot data quality issues and perform RCA in high-pressure environments.

Compensation:

Annual salary range: $115,000 to $135,000 USD - Bonus eligibility based on performance - Comprehensive benefits package including health insurance, retirement plans, and paid time off

What we offer:

• The chance to work with impact. Here, you're empowered to bring your biggest thinking to help our company and clients improve everyday life.
• Ownership over your career. Stay at the top of your game through our award-winning learning and development ecosystem. And when your ambitions change or we offer new opportunities, we help you pivot by providing reskilling, on-the-job learning and guidance to find new roles that might be a better fit.
• The opportunity to thrive on a high caliber team with heart. We celebrate each other's experiences and perspectives and promote a sense of belonging through our affinity groups and diversity and inclusion initiatives.
• A comprehensive total rewards package, including a competitive salary and pension plan with matching contributions.
• Flexible health and financial benefits to support you and your eligible dependents —from day one.
• True work-life balance. Be at your best through paid time off, flexible work arrangements, volunteering opportunities, social events, and so much more.

About us Cognizant is one of the world's leading professional services companies, transforming clients' business, operating, and technology models for the digital era. Our unique industry-based, consultative approach helps clients envision, build, and run more innovative and efficient businesses. Headquartered in the U.S., Cognizant (a member of the NASDAQ-100 and one of Forbes World's Best Employers 2025) is consistently listed among the most admired companies in the world.

Other employment-related information Cognizant is an equal opportunity employer. Your application and candidacy will not be considered based on race, color, sex, religion, creed, sexual orientation, gender identity, national origin, disability, genetic information, pregnancy, veteran status or any other characteristic protected by federal, provincial or local laws.

If you have a disability that requires reasonable accommodation to search for a job opening or submit an application, please email CareersNA2@cognizant.com with your request and contact information.

Language requirements vary depending on roles, but we ask that all candidates have basic English proficiency for company-wide communications purposes. For roles based in Quebec, professional English proficiency is required, as you'll deliver services to and collaborate with stakeholders outside the province who may not speak French.