Senior Java Backend Engineer - Spring Boot, Java 21 & SQL

Diverse CG Sp. z o.o. Sp.k. is seeking a Java/Spring Boot engineer to upgrade applications to Java 17+ and Spring Boot 3.3.x, and to design and maintain Java solutions for savings and investments products.

You will work with PostgreSQL/SQL, JMS/MQ, OpenAPI/AsyncAPI, and CI/CD, collaborating with financial analysts to translate requirements into scalable software. Fluent English is required; the role offers ongoing support from a dedicated consultant.