Senior Software Engineer

Mastercard

O Fallon, Missouri, United States of America Posted October 27, 2026

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On-site Full-time Senior
Job Description

We are looking for a Senior Software Engineer to design and develop full stack applications supporting Mastercard's Core Payments and Foreign Exchange rate-setting capabilities. You will deliver new features, enhance automated testing, and collaborate with cross-functional teams. Ideal candidates have strong Java and Spring Boot expertise and experience in scalable, secure software solutions.

Required Skills
software development testing collaboration cross-functional collaboration Java Spring Spring Boot
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