Description
Mastercard is hiring a Senior Software Engineer for its Payment Gateway Services team to design, develop, test, deploy, and support large-scale payment gateway applications. The role focuses on backend services and full-stack development using Java 17+, Spring Framework, Spring Boot, React, Angular, or Vue, along with observability, CI/CD, cloud platforms, and performance engineering. The engineer will also provide technical leadership, code reviews, mentorship, and root-cause analysis for complex production issues. The position is based in O'Fallon, Missouri, with a base salary of $115,000–$184,000 USD and potential annual bonus or commissions.
