Software Engineer II

Mastercard

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

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On-site Full-time Mid level
Job Description

We are seeking a Software Engineer II to design, build, and maintain secure, scalable payment-processing software. You will contribute to software development, quality engineering, and operational readiness, working with Java, Spring Boot, and relational SQL databases. Ideal candidates have experience in microservices and cloud-native architecture.

Required Skills
software development Java Spring Spring Boot SQL microservices cloud-native
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