Role: Full stack java Developer
Location: Brussels, Belgium
Duration: 12 months
Languages: ENG
Work Mode: Hybrid
Job Description:
So, what are the main responsibilities of a Java Full Stack Developer in Client location?
We are seeking an experienced Full Stack Developer to support digital solutions and application development initiatives. The successful consultant will contribute to the design, development, deployment, and maintenance of modern web applications, working across the full technology stack while ensuring scalability, security, performance, and compliance with EU Institution standards.
As a Java Full Stack Developer, you will:
Design, develop, and maintain responsive web applications across front-end and back-end layers.
Develop front-end architectures, user interfaces, and user interactions using modern web technologies.
Implement business logic, RESTful APIs, and server-side components using Java-based technologies.
Design and optimize relational and non-relational database solutions, ensuring data integrity and performance.
Apply secure development practices, including authentication, authorization, input validation, logging, and monitoring.
Perform unit and integration testing, debugging, issue resolution, and code validation activities.
Deploy, manage, and support applications in cloud environments using CI/CD pipelines and containerization technologies.
Produce technical documentation and collaborate with cross-functional teams to ensure seamless integration of system components.
Qualifications
What would make you a fit for the role:
Degree in Computer Science, Information Technology, Software Engineering, or a related field and minimum 6 years of professional experience as a Full-stack Software Engineer or in a similar software development role.
Strong expertise in Java development, including Spring Boot, Hibernate, and REST API implementation.
Solid knowledge of front-end technologies such as JavaScript, HTML, CSS, and modern frameworks including Angular, React, or Vue.js.
Experience with relational databases (PostgreSQL, Oracle) and non-relational databases (MongoDB), including schema design and query optimization.
Hands-on experience with cloud platforms such as AWS or Microsoft Azure and deployment of cloud-native applications.
Experience with containerization and orchestration technologies such as Docker and Kubernetes, as well as CI/CD pipeline implementation.
Knowledge of software security best practices, including OAuth 2.0, OpenID Connect, JWT, and secure application development principles.
Strong teamwork, communication, and stakeholder collaboration skills in multicultural environments.
Professional proficiency in English, both written and spoken.
Key Skills
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- Posted
- Jul 07, 2026
- Type
- Full-time
- Level
- Mid-Senior
- Location
- Brussels
- Company
- Sansaone
Industries
Categories
Related Jobs
3 roles aligned with this opportunity
Website Developer
2026-06-18
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2026-07-03
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2026-07-02