Java Application Developer – Public Sector

What you will do

You will join a development team working on a platform that manages family allowances. You will be involved in the full application lifecycle, from technical design to production deployment, with a particular focus on backend robustness and user experience.

Development & Code Quality

• Design and develop complex features using Java 21+ and Spring Boot
• Build modern, reactive interfaces with Angular while maintaining the existing JSF codebase
• Ensure software quality through unit and integration testing and peer code reviews
• Handle data persistence with Hibernate and optimise queries to guarantee platform performance

Architecture & Ecosystem

• Participate in the design and delivery of secure, scalable REST APIs
• Work on continuous integration and deployment within an OpenShift environment
• Collaborate closely with business analysts to translate legislative requirements into elegant technical solutions

Continuous Improvement

• Contribute to the automation of development processes using CI/CD tools (GitLab, Jenkins, Renovate)
• Ensure code compliance through SonarQube
• Propose ideas to modernise the technical stack and optimise application performance

What we are looking for

Technical Skills

Backend:

• Java 21+
• Spring / Spring Boot / Spring Batch
• Hibernate
• RabbitMQ
• Oracle / Postgres
• XML
• JUnit / Selenium

Frontend:

• Angular
• Vue.js
• JSF / PrimeFaces

Environment:

• GitLab
• Jenkins
• OpenShift
• JIRA / Confluence
• Maven
• SonarQube
• Renovate
• Kibana
• Prometheus

API: Real experience in consuming and creating REST services.

Knowledge of networking and infrastructure is a plus.

Business Skills

In-depth knowledge of the family allowance sector (business processes, legislation, data flows) is a major asset for understanding the application's challenges.

Soft Skills

• Autonomy: ability to take ownership of a topic from start to finish
• Team spirit: you enjoy sharing your knowledge and learning from colleagues
• Precision: you attach great importance to clean code and documentation

The setting

This assignment runs for 12 months, starting on 4 January 2027. The role is based in Charleroi with hybrid working (on-site and remote).

You will need native-level French and active knowledge of English.