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

Become part of our team as a Senior Software Engineer, leading the design and development of cloud-ready applications and distributed systems for Mastercard’s payment platforms. Drive technical architecture decisions and mentor engineers, leveraging strong Java, Spring Boot, and distributed systems expertise. Ideal for experienced professionals with a background in scalable, secure software engineering.

Required Skills
software development distributed systems Java Spring Spring Boot
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