Kunai seeks a Senior Software Engineer to join a digital payments modernization program integrating a major card network into a large U.S. financial institution. Responsibilities include designing domain/service architecture, building Spring Boot/JPA services, orchestrating integrations (Apache Camel), developing event-driven systems (Kafka), frontend micro-frontend work (Next.js/React/TypeScript), and owning OAuth2/OIDC identity flows. The role requires experience with PostgreSQL/Oracle, container platforms (OpenShift/Kubernetes), performance testing, CI/CD and test-driven practices. Minimum 5+ years professional software engineering experience. No sponsorship available.

Hands-on senior engineer embedded on a digital payments modernization program supporting integration of a major card network. Responsibilities include domain-driven design, building Spring Boot/JPA services with PostgreSQL/Aurora and Liquibase, integration/orchestration with Apache Camel, event-driven work with Kafka, micro-frontend development (Next.js/React/TypeScript), OAuth2/OIDC identity work (e.g., Okta), cloud architecture (AWS IAM, S3, CloudFront), OpenShift-based deployments, and enterprise performance testing. Role requires 5+ years professional software engineering experience (primarily Java). Visa sponsorship is not provided.