Java Full Stack Developer (f/m/d)

About the Position

Java Full Stack Developer (f/m/d)

Qualysoft is seeking an experienced Java Full Stack Developer with a strong focus on backend development to join our agile team in Wien. This is a contract position with a hybrid work arrangement.

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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 (preferably with Camunda BPM) 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

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Requirements

• 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)

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We Offer

• Competitive salary: €380 - €400 a day
• Hybrid work arrangement
• Opportunity to work with cutting-edge technologies

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About the Company

Qualysoft is a leading company in the telecommunications sector, committed to delivering high-quality software solutions. We value innovation, collaboration, and continuous improvement.

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Interested?

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

Contact us via Freelancermap by email at [email protected], or via LinkedIn. Thank you for your understanding!

Contact Information:

+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.