20 beste Stellen als system architect in wien – aktuell auf Personalsuche

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.

Key Responsibilities

Design, develop, and maintain backend services using Java 21, Spring, and Spring Boot 3

Implement and integrate REST APIs for internal and external systems

Apply BPMN knowledge (Camunda BPM preferred) for long-running processes

Conduct unit testing using JUnit to ensure code quality

Manage builds and dependencies with Maven

Work with PostgreSQL, ideally with JSONB

Design and develop scalable, maintainable microservice architectures

Collaborate closely with product owners, architects, developers, and DevOps teams

Contribute to the continuous improvement of development processes and tools

Ensure 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 3

Solid understanding of BPMN (Camunda BPM is a strong advantage)

Experience with REST API development and integration

Proficiency in JUnit for unit testing

Experience in Maven build management

Solid knowledge of PostgreSQL (JSONB is a plus)

Strong background in microservice architecture design and implementation

Agile mindset and experience working in Scrum/Kanban teams

Excellent 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 [email protected], or via LinkedIn. Thank you for your understanding! +43 699 14402417

We 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.

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