Senior Quality Engineer (Artificial Intelligence and Decision Product Enablement Program)

Mastercard • O’Fallon, MO

1d • Hybrid

About The Position

Mastercard is a global technology leader in payments, operating the world’s fastest and most secure payment processing network. We connect consumers, financial institutions, merchants, and governments across 210+ countries and territories—enabling frictionless, secure, and efficient commerce experiences.

Join Mastercard’s award-winning Artificial Intelligence and Decision Product Enablement (AI & DPE) program as a Senior Quality Engineer on the Clearing Decisioning team. In this role, you’ll work on a high-performance, real-time Artificial Intelligence (AI) and decisioning platform that leverages advanced AI solutions and processes hundreds of thousands of transactions every second --ensuring payment security at a global scale.

You will:

• Design and execute robust testing strategies for mission-critical systems that power global commerce and defend against fraud.

• Collaborate with world-class engineers and product teams to validate high-impact, client-facing solutions.

• Harness cutting-edge technologies, including Large Language Model (LLM) copilots and automation frameworks, to ensure reliability, scalability, and speed.

• Champion continuous improvement in quality engineering practices for a platform processing billions of dollars every day.

If you thrive in a fast-paced environment and are passionate about delivering excellence, join us and help shape the future of secure, intelligent payments.

Requirements

• Strong background in software quality assurance
• Proficiency in automation and CI/CD tools (e.g., Jenkins)
• Experience with testing frameworks such as Junit and TestNG
• Expertise in programming languages, such as Java
• Excellent problem-solving skills and self-motivation
• Ability to excel in a fast-paced environment

Responsibilities

• Design, execute, and maintain comprehensive testing strategies to ensure high-quality software product delivery
• Develop automated test scripts and perform occasional manual testing
• Analyze test results and collaborate with cross-functional teams to identify and resolve defects
• Lead initiatives to improve testing processes and CI/CD pipelines
• Ensure compliance with industry standards and best practices

Benefits

• insurance (including medical, prescription drug, dental, vision, disability, life insurance)
• flexible spending account and health savings account
• paid leaves (including 16 weeks of new parent leave and up to 20 days of bereavement leave)
• 80 hours of Paid Sick and Safe Time, 25 days of vacation time and 5 personal days, pro-rated based on date of hire
• 10 annual paid U.S. observed holidays
• 401k with a best-in-class company match
• deferred compensation for eligible roles
• fitness reimbursement or on-site fitness facilities
• eligibility for tuition reimbursement

What This Job Offers

• Job Type: Full-time
• Career Level: Senior
• Education Level: No Education Listed