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Software Engineer II

O'Fallon, Missouri💼 Full-time🗓 2026-08-25 → 2026-09-27

Core

Design, develop, test, and maintain high-quality software solutions for fraud prevention and payment processing platforms using Java.

Role type

Software Engineer II (Backend/Platform)

Builds

Fraud detection capabilities, Decision Management Platform, and payment processing services

Domain

Financial Technology (Payments) / Fraud Prevention

Required skills

Java, Object-Oriented Design, Automated Testing (Unit/Functional/Integration), SQL/PL/SQL, Continuous Integration, Secure Coding, Troubleshooting, Performance Optimization

Preferred skills

Distributed Systems, Cloud-Native/Microservices, Performance Engineering, Observability

Technologies

Java, TestNG, Spock, Jenkins, Oracle, PL/SQL, Splunk, IntelliJ IDEA, JBoss Developer Studio, Postman, Toad

Responsibilities

Design and develop enterprise-scale software applications; Build and enhance features, services, and APIs; Develop and maintain automated tests; Participate in code reviews; Troubleshoot complex production issues; Contribute to performance engineering and scalability initiatives

Seniority

Mid-Level, hands-on IC

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