Application Developer - Full-Stack Java & Angular (Freelance possible)

Tasks and responsibilities

You will contribute to a large public-sector programme focused on taking over and modernising a portfolio of around thirty business applications.

The scope combines handover/takeover activities, operational maintenance, the development of new features, and where needed re-engineering or full rewrites to align existing applications with current development standards.

️ Responsibilities

• Develop and maintain business applications in a complex multi-system environment.
• Build and enhance application components and RESTful web services.
• Contribute to the design of architecture components and technical building blocks in close collaboration with the technical lead and software architects.
• Participate in technical working groups, Scrum ceremonies and user meetings when required.
• Support testing, technical documentation, deployment, evaluation and reporting, including follow-up in JIRA.

Your profile

Confirmed Application Developer with strong full-stack Java experience and a clear affinity for frontend development.

Experiences

• Minimum 7 years of full-time professional experience in Java development.
• Full-stack experience is preferred, with a backend focus and a strong interest in frontend work.
• Familiarity with multi-system integrations and complex application landscapes.

Competencies

Strong technical knowledge and hands-on experience are expected so you can contribute quickly to development and support activities.

Must have :

• Java 17+
• Spring 4+
• Spring Boot 3+
• Angular 19+
• REST(ful) web services
• OpenAPI
• Test-driven development (JUnit, Mockito, Cypress)
• Maven
• Docker
• GIT
• NPM
• Experience with relational databases and O/R mapping, such as PostgreSQL and SQL Server
• Ability to read and understand BPMN, UML and documentation practices
• Familiarity with Agile/Scrum, continuous integration and software engineering best practices
• Ability to analyse existing code quickly and solve problems effectively
• Solution-oriented and user-focused mindset
• Ability to integrate easily into an existing team

Nice to have:

• Keycloak
• Hibernate
• Lombok
• MapStruct
• OpenShift / Kubernetes
• GitLab CI
• Sonar
• OAuth 2.0
• Flyway or Liquibase
• JIRA / Confluence

Langues

• French or Dutch: expert level
• English: advanced written level

Mission & Working hours

• Work location: Brussels
• Hybrid setup with a minimum of 2 days on site per week
• Remote work is possible
• Working schedule: 7h48 per day
• EU nationals only

Offer

You will be part of a growing Belgian SME where initiative and personal development are encouraged. We will provide you with an enjoyable work environment with fun colleagues. We will work out a career plan with you, with attention and a budget for extra education/certification. You can count on an attractive salary, supplemented with extra-legal benefits, including a company car.

(Freelance is also possible)