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# Java Full Stack Developer

- **Company:** Qualysoft GmbH
Java Full Stack DeveloperQualysoft GmbH
- **Location:** Wien, Austria (Remote available)
- **Contract:** Permanent contract
- **Skills:** Java (Programming Language), Application Programming Interfaces (APIs), Unit Testing, Business Process Model and Notation, Software Quality, Databases, DevOps, Junit, PostgreSQL, Apache Maven, Scrum Methodology, Systems Integration, Spring-boot, Backend, Build Management, Api Design, Restful APIs, Microservices
- **Published:** September 25, 2026
- **Apply:** https://devjobs.at/job/157fdc548009c38c3014818b14c60b9e

## About the Role

* We are seeking an experienced Java Full Stack Developer with a strong focus on backend development to join our agile team., * Strong knowledge of Spring and Spring Boot 3.
 * Solid understanding of BPMN (Camunda BPM is a strong advantage).
 * Proficiency in JUnit for unit testing.
 * Solid knowledge of PostgreSQL (JSONB is a plus).
 * Strong background in microservice architecture design and implementation.
 * Excellent command of English (spoken & written).

Erfahrung

 * Proven professional experience in backend development with Java (Java 21 preferred).
 * Experience with REST API development and integration.
 * Experience in Maven build management.
 * Agile mindset and experience working in Scrum/Kanban teams.

## Description

In diesem Job entwickelst du Backend-Services mit Java und Spring Boot, entwirfst APIs, implementierst Microservices und nutzt BPMN für automatisierte Geschäftsprozesse.

Job Technologien

 * Java
 * BPMN
 * PostgreSQL
 * JUnit
 * Spring
 * Spring Boot
 * Camunda
 * Maven, * 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.
 * 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.


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