Senior QA Test Engineer - Payments & AS/400 Expert

2Link Partners is seeking a seasoned Quality Assurance Test Engineer for a contract role in the Chicago area. You will own testing across payments, AS/400 environments, and complex enterprise applications, ensuring high-quality releases. You’ll design and execute tests, analyze data with SQL, and collaborate with offshore and onshore teams in Agile/Scrum and Waterfall settings. Local candidates only, strong attention to detail preferred.