Senior Java Backend Engineer — Core Banking Platform

BEC Financial Technologies in Warszawa is seeking a skilled Java backend engineer to join our Technology Transformation Program. You will design and implement Java-based integrations for core banking services, collaborate with analysts and architects, and contribute to scalable, reliable software in a regulated environment.

You will work on RESTful APIs, Kafka-based integrations, and containerized deployments using Docker and OpenShift, while mentoring juniors and driving architectural