Java Full Stack Developer (f/m/d)

We are seeking an experienced Java Full Stack Developer with a strong focus on backend development to join our agile team. You will be responsible for building and maintaining enterprise-grade services and automating business processes using BPMN (ideally with Camunda BPM).

Your role will involve designing and developing APIs, implementing microservice-based architectures, and integrating with databases, all while collaborating closely with cross-functional teams in an agile environment.

Experience in the telecommunications sector is highly desirable and will be considered a strong plus.€380 - €400 a dayKey Responsibilities

Design, develop, and maintain backend services using Java 21, Spring, and Spring Boot 3Implement and integrate REST APIs for internal and external systemsApply BPMN knowledge (Camunda BPM preferred) for long-running processesConduct unit testing using JUnit to ensure code qualityManage builds and dependencies with MavenWork with PostgreSQL, ideally with JSONBDesign and develop scalable, maintainable microservice architecturesCollaborate closely with product owners, architects, developers, and DevOps teamsContribute to the continuous improvement of development processes and toolsEnsure solutions meet performance, stability, and security standards

Required Skills & Experience

Proven professional experience in backend development with Java (Java 21 preferred)Strong knowledge of Spring and Spring Boot 3Solid understanding of BPMN (Camunda BPM is a strong advantage)Experience with REST API development and integrationProficiency in JUnit for unit testingExperience in Maven build managementSolid knowledge of PostgreSQL (JSONB is a plus)Strong background in microservice architecture design and implementationAgile mindset and experience working in Scrum/Kanban teamsExcellent command of English (spoken & written)Interested?

Please send your updated CV including availability and hourly rate expectations. We look forward to hearing from you!

Please contact me via Freelancermap by email at elena.kahraman@qualysoft.com, or via LinkedIn. Thank you for your understanding! +43 699 14402417We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses and identifying potential inconsistencies or verification signals in application materials based on available information. These tools assist our recruitment team but do not replace human judgment.

Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.