About this opportunity
Mastercard Inc. lists this Senior Automation Engineer - API/UI & Performance opportunity in o’fallon, Missouri. Review the employer’s description below for duties, qualifications and application requirements.
Job description
Mastercard is hiring a Senior Integration Engineer in the US, focused on automation-first QA across API, UI, and performance layers. You will design robust test frameworks using Java, Selenium, REST Assured, and Cypress, and drive quality throughout the SDLC.
Strong collaboration with engineering teams and mentorship across QA are expected. The role emphasizes scalable automation, API quality, and performance testing in a high-stakes payments environment in Missouri.
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Who can apply
Review the original listing for work authorization, qualifications and employer requirements.