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Senior Software Engineer

O'Fallon, Missouri💼 Full-time💰 $115,000–$115,000🗓 2026-08-18 → 2026-09-27

Core

Design, build, and operate cloud-native Java microservices and distributed systems for Mastercard Send, enabling near real-time global money movement.

Role type

Senior Java Site Reliability Engineer (SRE)

Builds

Large-scale, real-time distributed payment platforms

Domain

Financial services / Payments

Required skills

Java, Spring Boot, Microservices, Kubernetes, AWS/Azure, OpenTelemetry, Dynatrace, CI/CD, API Security, Incident Response, Performance Tuning

Preferred skills

Payment processing experience, Financial services domain knowledge

Technologies

Java, Spring Framework, Spring Batch, Spring Cloud, Apache Kafka, Oracle, PostgreSQL, Redis, MongoDB, Jenkins, GitHub, Maven, JUnit, Mockito, Karate, Splunk, Prometheus, Grafana, Docker, PCF

Responsibilities

Design and develop cloud-native Java applications and microservices; Build scalable, resilient systems using distributed architecture; Drive production reliability through observability, monitoring, and incident response; Automate deployments and operational processes; Mentor engineers and promote operational excellence best practices.

Seniority

Senior, hands-on IC

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