Software & DataOn site
Software Engineer II
MastercardO'Fallon, MO
$92,000–147,000/yr
Posted Oct 1, 2026
What you’d do
Design, develop, test, and deploy software supporting AI and decisioning platforms, including automated test solutions and validation of complex applications. Full time role in O'Fallon, Missouri. Found on the employer's careers page on Oct 2, 2026. Apply through the link.
You’ll need
- Software engineering fundamentals
- Automation testing expertise
- Experience validating complex applications and system integrations
- Collaboration with Product, Engineering, and Business stakeholders
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