Lead Software Development Engineer in Test (Lead SDET)

MasterCard
Full time O'Fallon, Illinois Computer Occupations
Posted:
June 07, 2026
Location:
O'Fallon, Illinois, United States

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

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.

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Job Overview

Job Type: Full time
Location: O'Fallon, United States
Posted: June 07, 2026
Deadline: July 17, 2026