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OneSource Consulting

Java Developer

Full-time · Mid-Senior level · Posted

About the role

Job Title: Medior/Senior Java Developer Language: Dutch, French, English Location: Brussels, Belgium Duration: 01/08/2026 - 31/12/2026 (option to extend) Work Mode: Hybrid (2 or 3 days onsite per week) Work regime: Full time Job Description - Roles and Responsibilities Context: The Regul team is located in the Healthcare department and is responsible for a number of applications that make the necessary regularizations of the medical invoices and certificates of our 5 million members. This is a core function within our legal obligation of paying our members correctly Enjeu/bet : The developer/functional analyst will be responsible for the technical and functional support of the agile scrum team. This includes the daily follow-up and maintenance of the applications as well as the further development and expansion and also the necessary functional analyses to supplement the user stories. Responsibilities: You are responsible for implementing the User Stories and maintaining and managing the applications. You support the business analysts and the Product owner in the functional development of the user stories. You also create your own technical stories During development, you have to work closely with the business, analysts and testers to ensure that the functionalities are implemented and tested correctly You are well aware of the most recent developments in the field of AI (Agentic AI) and you can also use these Knowledge/tools to accelerate your development work and your analysis work. Tasks and deliverables/Taken as deliverables: You communicate efficiently with the various stakeholders (business/functional analysts, scrum master, testers, developers) so that they perfectly understand the priorities and status of the tasks. You ensure that your code is fully covered with unit tests You are able to make technical improvement proposals and defend them within the team and architects. You support the tester in automating functional tests (Cucumber). You analyze integrations with other parties and systems. You are able to work out the technical design based on a functional analysis. You will work together with infrastructure employees to install the applications and monitor their operation. You document your software thoroughly, without getting bogged down in details. You supplement the user stories with a functional analysis Profile You have a thorough knowledge of UML, SQL, JEE 7 & Java 8, Oracle SQL, Eclipselink, SOAP, REST, JMS, rich GUIs (Vaadin), Quarkus You have experience in the development and application maintenance of enterprise-class systems. You have experience in setting up and managing pipelines in Jenkins You have experience in deploying and rollout applications in Openshift You have notions of concepts such as Microservices, BCE principles, docker containers. You have experience in Agile methodologies and are willing to adapt to the operation within this framework (T-Profile) You are critical and have good analytical and synthesis skills You can work independently and, in a team, You have a sense of quality, accuracy and have a no-nonsense mentality You can work under stress with changing priorities You are result-oriented, proactive, dynamic, ... You have knowledge of the following tools: Maven, Git, Jenkins, Cucumber, Jira, IntelliJ, Postman, Dynatrace, ... You are Dutch or FR - speaking with good knowledge of the other national language. You are AGILE by nature, and you are therefore willing to fully participate in the scrum story. You are someone who constantly wants to learn

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