The Java Developer role at streamboost GmbH in Darmstadt focuses on feature development and enhancement of their real-time marketing tools. Key responsibilities include utilizing Java 17 and Spring Boot, supporting the migration from Vert.x to Spring, and maintaining the existing ad platform while ensuring quality through testing. Candidates should have experience with Java, Spring Boot, RESTful APIs, and cloud platforms. streamboost is an innovative company aiming to lead in the European AdTech