Software & DataEntry levelOn site
Software Engineer I
MastercardO'Fallon, MO
$72,000–115,000/yr
Posted Oct 7, 2026
What you’d do
Build, test, and support software applications and services for Mastercard's real-time payment network on the Transaction Stream team. Full time in O'Fallon, Missouri, working with engineers and product partners on globally scaled systems. Found on the employer's careers page on Oct 7, 2026. Apply through the link.
You’ll need
- Software development experience
- Writing clean, maintainable, secure code
- Software design from functional requirements
- Testing and supporting applications
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