Senior Java Software Engineer

RE Partners is hiring a Senior Java Software Engineer in New York for a hybrid role based in New York or New Jersey, with some onsite work each week. The position involves building and supporting a high-volume payments platform, with a focus on low-latency services, performance tuning, concurrency, and production reliability. It calls for at least eight years of Java experience, strong work with multithreading, and familiarity with Kafka, distributed systems, and cloud-native architectures. The role is aimed at senior engineers who want substantial ownership in a small team and have experience with modern Java, Kubernetes, and ideally banking or payments work.