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Lead Software Development Engineer in Test (Lead SDET)

Student-Friendly Entry-Level
Company

MasterCard

Location

O'Fallon, United States

Posted

June 07, 2026

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About This Opportunity

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

Lead Software Development Engineer in Test (Lead SDET)

Overview:
Mastercard’s Global Credit Card Authorization team is seeking a Lead Software Development Engineer in Test (Lead SDET) to drive quality engineering for one of the most critical transaction processing platforms in the world. This platform facilitates billions of transactions annually between issuers, acquirers, and service providers across the globe.