Data Warehouse Quality Assurance Tester

Job# : 3011122

Job Description : Job Summary :

Apex Systems is seeking a detail-oriented Medicaid Enterprise Systems Tester to support the Medicaid Data Warehouse Migration Project. The successful candidate will be responsible for testing and validating ETL data pipelines and Cognos reports to ensure data accuracy, completeness, and integrity across key Medicaid data domains — including member, claims, encounters, and provider datasets. This role demands hands-on experience in data validation, report testing, and ETL verification within a Medicaid or healthcare data environment.

Key Responsibilities :

• Validate ETL pipelines after data migration from legacy systems to new data warehouses or cloud platforms.
• Test and verify Cognos reports for accuracy, completeness, formatting, and compliance with defined business rules.
• Develop and execute test plans, test cases, and scripts for both ETL and reporting validation.
• Perform data reconciliation between source, staging, and target systems to ensure integrity and correctness.
• Collaborate with data engineers and business analysts to understand reporting requirements and ETL transformations.
• Identify, log, and track defects or discrepancies using JIRA.
• Support the state team during User Acceptance Testing (UAT) for migrated data and reports.
• Document testing activities, results, and provide summary reports and recommendations.
• Ensure testing adheres to HIPAA, CMS, and state Medicaid compliance standards.

Required Skills and Experience :

Preferred Qualifications :

EEO Employer

Apex Systems is an equal opportunity employer. We do not discriminate or allow discrimination on the basis of race, color, religion, creed, sex (including pregnancy, childbirth, breastfeeding, or related medical conditions), age, sexual orientation, gender identity, national origin, ancestry, citizenship, genetic information, registered domestic partner status, marital status, disability, status as a crime victim, protected veteran status, political affiliation, union membership, or any other characteristic protected by law. Apex will consider qualified applicants with criminal histories in a manner consistent with the requirements of applicable law. If you have visited our website in search of information on employment opportunities or to apply for a position, and you require an accommodation in using our website for a search or application, please contact our Employee Services Department at or 844-463-6178.

Apex Systems is a world-class IT services company that serves thousands of clients across the globe. When you join Apex, you become part of a team that values innovation, collaboration, and continuous learning. We offer quality career resources, training, certifications, development opportunities, and a comprehensive benefits package. Our commitment to excellence is reflected in many awards, including ClearlyRated's Best of Staffing® in Talent Satisfaction in the United States and Great Place to Work® in the United Kingdom and Mexico.

Apex Benefits Overview :   Apex offers a range of supplemental benefits, including medical, dental, vision, life, disability, and other insurance plans that offer an optional layer of financial protection. We offer an ESPP (employee stock purchase program) and a 401K program which allows you to contribute typically within 30 days of starting, with a company match after 12 months of tenure. Apex also offers a HSA (Health Savings Account on the HDHP plan), a SupportLinc Employee Assistance Program (EAP) with up to 8 free counseling sessions, a corporate discount savings program and other discounts. In terms of professional development, Apex hosts an on-demand training program, provides access to certification prep and a library of technical and leadership courses / books / seminars once you have 6+ months of tenure, and certification discounts and other perks to associations that include CompTIA and IIBA. Apex has a dedicated customer service team for our Consultants that can address questions around benefits and other resources, as well as a certified Career Coach. You can access a full list of our benefits, programs, support teams and resources within our ‘Welcome Packet’ as well, which an Apex team member can provide.