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

Location: O'Fallon, Missouri

Time Type: Full time

Job Description

Our Purpose

Mastercard powers economies and empowers people in 200+ countries and territories worldwide. Together with our customers, we’re helping build a sustainable economy where everyone can prosper. We support a wide range of digital payments choices, making transactions secure, simple, smart and accessible. Our technology and innovation, partnerships and networks combine to deliver a unique set of products and services that help people, businesses and governments realize their greatest potential.

Title and Summary

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

Overview

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.



Location: St. Louis, Missouri (three onsite days per week)




Key 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



Required Skills

• 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

Mastercard is a merit-based, inclusive, equal opportunity employer that considers applicants without regard to gender, gender identity, sexual orientation, race, ethnicity, disabled or veteran status, or any other characteristic protected by law. We hire the most qualified candidate for the role. In the US or Canada, if you require accommodations or assistance to complete the online application process or during the recruitment process, please contact [email protected] and identify the type of accommodation or assistance you are requesting. Do not include any medical or health information in this email. The Reasonable Accommodations team will respond to your email promptly.

Corporate Security Responsibility

All activities involving access to Mastercard assets, information, and networks comes with an inherent risk to the organization and, therefore, it is expected that every person working for, or on behalf of, Mastercard is responsible for information security and must:

• Abide by Mastercard’s security policies and practices;

• Ensure the confidentiality and integrity of the information being accessed;

• Report any suspected information security violation or breach, and

• Complete all periodic mandatory security trainings in accordance with Mastercard’s guidelines.

In line with Mastercard’s total compensation philosophy and assuming that the job will be performed in the US, the successful candidate will be offered a competitive base salary and may be eligible for an annual bonus or commissions depending on the role. The base salary offered may vary depending on multiple factors, including but not limited to location, job-related knowledge, skills, and experience. Mastercard benefits for full time (and certain part time) employees generally include: 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; and many more. Mastercard benefits for interns generally include: 56 hours of Paid Sick and Safe Time; jury duty leave; and on-site fitness facilities in some locations.

Pay Ranges

O'Fallon, Missouri: $115,000 - $184,000 USD