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Software Engineer I

O'Fallon, Missouri💼 Full-time💰 $72,000–$72,000🗓 2026-07-20 → 2026-07-30

Core

Early-career Java developer building microservices for high-throughput, low-latency transaction processing platforms.

Role type

Junior IC Java Software Engineer

Builds

Cloud-ready microservices and distributed applications for payment transaction processing

Domain

Fintech / Payments / Distributed Systems

Deliverable

production ML models | product features

Required skills

Java, J2EE, Spring Boot, Kafka, RESTful Web Services, JPA, Unit Testing, Integration Testing, Microservices, Cloud-native development, Data Structures

Preferred skills

AI-assisted applications, CI/CD, Test-Driven Development

Technologies

Java, Spring, Kafka, JPA

Responsibilities

Translate product requirements into technical implementations, Write modular and performant code, Develop and maintain unit tests, Participate in functional and integration testing, Assist with troubleshooting production issues, Collaborate with cross-functional teams using Agile Scrum

Seniority

Junior, early-career IC

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