Mastercard
O’Fallon, Missouri

Software Development Engineer in Test (SDET) II

Hybrid$92,000 - $147,000/yrPosted May 4, 2026

Job details

Location
O’Fallon, Missouri
Work type
Hybrid
Compensation
$92,000 - $147,000/yr
Posted
May 4, 2026
Apply on
mastercard.wd1.myworkdayjobs.com

About this role

SDET with experience building functional, integration, and UAT test strategies for high-throughput systems. Linux, shell scripting, and programming in C/C++ or Java. Git experience. Bachelor’s in CS/SE/IT/Math. Strong communication.

What you'll do at Mastercard:

  • Develop tests
  • Design tests
  • Validate system

Apply to this Software Development Engineer in Test (SDET) II role at Mastercard with a tailored resume on ApplyBolt.

About Mastercard

Mastercard
O’Fallon, Missouri