About the Mission

In the context of a major business transformation program, we are looking for a senior java developer to reinforce the existing teams. As a senior developer , you will join a department of about 7 0 people (in evolution) to ensure the hand-over, refactoring and/or greenfield development of business applications. The developer we’re looking for will be responsible for the development of Java application s , supporting the analysts and business objectives , while providing expertise in full -stack software development lifecycle, from concept and design to testing. Responsibilities: · Development / Maintenance of business applications · Development of application components/webservices · Contribute in the design of architecture components and building blocks (in close collaboration with technical lead or senior software architects) · Participation in technical working groups, Scrum meetings and meetings with the users if needed Assistance in the testing, the technical documentation, the deployment, the evaluation and the reporting (JUnit, JIRA) Experiences · Minimum 5-7 years of full-time professional Java Development experience is required · Minimum 5-7 years of full-time professional Angular Development experience is required · Familiarity with multi-system integration and complex environments Competencies : · Technical knowledge and practical experience of required technologies to be able to start development and support directly (below) : Java and Spring Framework JPA (with Hibernate as implementation) Security patterns (Spring security) Soap and RESTful Web Services Spring Batch SOA, microservices, CQRS Test driven development (Junit, Spring, CI, Mockito, Cypress, Selenium) Frontend (HTML/CSS/JavaScript, Angular) & backend abilities Maven, Jenkins, Docker, Openshift, SVN or GIT and Eclipse or IntelliJ, Sonar, JBoss, Tomcat… Experience with relational database and O/R mapping: PostgreSQL, SQL Server, Able to read and understand BPMN, UML & documentation practices Jira/Confluence A knowledge in the following technologies would be a nice to have, but not required: Talend, ZK, Oracle, Kafka · Familiar with AGILE/SCRUM methodologies, test-driven development and continuous integration · Problem solver, able to quickly understand existing code · Solution and customer oriented · Ability to integrate easily into an existing team and to supervise juniors Mission & Working hours We are based in Brussels (just in front of Midi Station). This will be an initial contract until 31/03/2025 – The mission is long term and can be extended beyond. 5 days from Monday until Friday (up to 9h per day on site). Homeworking is possible (3 days a week – 7h48). Languages French or Dutch: active knowledge (understanding / speaking / writing technical documentation / reading) of one language. English (written / team communication): active knowledge

Required Skills

Angular, jakarta-ee, REST API’s, Scrum (Agile), Sprinboot, Spring Batch

Practical Information

  • Company: SMALS
  • Location: Bruxelles – Hybrid
  • Start Date: 1 June 2026
  • End Date: 31 December 2026
  • Duration: 8 months
  • Contract Type: Freelance / Mission
  • Application Deadline: 4 June 2026