Application Architect Java

The role supports the modernization of existing platforms, the rollout of new functionalities and the continuous improvement of software engineering practices in a complex multi-system environment. Key activities include developing and maintaining business-critical applications and shared digital services, integrating internal and external systems through APIs and service-oriented architectures, improving and modernizing existing applications and technical platforms, and helping deliver resilient digital services for public sector organizations.

Responsibilities include developing and maintaining business applications, application components, APIs and web services; contributing to application and technical architecture, including integration architecture, API Gateway design and technical building blocks, in collaboration with technical leads and solution architects; participating in technical workshops, Agile/Scrum ceremonies and stakeholder meetings; supporting testing activities, technical documentation, deployments, quality assurance, monitoring, reporting and continuous improvement; working with multidisciplinary teams to align business and technical requirements; applying security, performance, interoperability and quality standards; and carrying out code reviews.

The profile requires a minimum of 7 years of professional experience in Java software development and 5 years in application architecture, experience in complex multi-system environments and large-scale digital transformation projects, experience in a public sector environment is an asset, and proven experience in Agile delivery environments. Technical skills include Java 21 or higher, Spring Boot and Spring Framework (Core, JDBC, Data, Security, AOP), JPA/Hibernate, RESTful Web Services, REST API, OpenAPI/Swagger and API Gateway principles, application architecture, technical architecture and integration architecture, IAM standards such as SAML2, OpenID and OAuth 2.0, security practices including OWASP, SOA, Backend-for-Frontend and CQRS, Angular 16 or newer, Keycloak, Lombok and MapStruct, test-driven development with JUnit, Mockito, Spring Test and Cypress, Selenium and Testlink, Maven and NPM, Docker, OpenShift/Kubernetes, Git and GitLab CI/CD, Jenkins, SonarQube, Flyway or Liquibase, PostgreSQL, SQL Server and relational databases, BPMN and UML, Jira and Confluence, Dollar Universe, JBoss 7.4 and Tomcat, business analysis and process descriptions, and Agile/Scrum methodologies.

Soft skills include strong analytical and problem-solving skills, ability to quickly understand and maintain existing codebases, solution-oriented communication, autonomous and proactive.

Languages: French expert level, English working proficiency. The working environment is hybrid with regular on-site presence possible. The offer includes a growing Belgian SME, career plan, budget for education/certification, attractive salary with extra-legal benefits including a company car. Freelance is also possible.