Software & DataOn site
Senior, Software Engineer
MastercardO'Fallon, MO
$115,000–184,000/yr
Posted Oct 20, 2026
What you’d do
Own backend software delivery for Java-based applications, APIs, and services, including design, coding, automated testing, deployment, and troubleshooting. Full time role in O'Fallon, Missouri. Found on the employer's careers page on Oct 21, 2026. Apply through the link.
You’ll need
- Java development
- Backend application and API development
- Automated unit, functional, and integration testing
- Test automation in the SDLC
- Troubleshooting and refactoring existing code
Our summary of the listing. The full listing has the details.