Hands-on senior engineering role supporting a digital payments modernization program. Responsibilities include designing and executing enterprise performance testing, building and modernizing backend services (primarily Java) on OpenShift with PostgreSQL/Oracle, instrumenting legacy and modern stacks (Tomcat, WebSphere), and working with event-driven architectures and PCI-related data pipelines. Requires 5+ years of software engineering experience and experience with relational databases and containerized deployments.

Senior Software Engineer working primarily in Java on backend services and performance testing for a card network integration program. Required: 5+ years experience, PostgreSQL or Oracle, containerized deployments (OpenShift/Kubernetes), experience with performance testing and profiling, familiarity with Tomcat/WebSphere and PCI/compliance considerations. Employer cannot provide visa sponsorship for this role.