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Mastercard Builtin · Indexed 2026-08-22

Senior Software Engineer

O'Fallon, MO, USA 115K-184K Annually

Senior level Builtin
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Indexed description

Mastercard Senior Software Engineer Reposted 8 Hours AgoSaved Hybrid O'Fallon, MO, USA 115K-184K Annually Senior level 115K-184K Annually Senior levelBlockchain • Fintech • Payments • Consulting • Cryptocurrency • Cybersecurity • Quantum ComputingDesign, build, test, deploy, and support scalable, event-driven payment processing microservices using Java and Spring Boot. Implement Kafka-based messaging, optimize PostgreSQL database access, ensure observability and security, troubleshoot production issues, perform code reviews, and mentor engineers to drive operational excellence and reliable high-volume transaction processing.Top Skills: Application MonitoringCi/CdCloud PlatformsContainerized DeploymentsJavaKafkaMicroservicesObservability ToolingPostgresRest ApisSpring BatchSpring Boot

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