Development of back-end website applications.
Integration of user-facing elements developed by a front-end developer with server side logic.
Implement core business logic.
Creation of servers and databases for functionality.
Design and implementation of data storage solutions.
Understanding and implementation of security and data protection.
Optimization of the application for maximum speed and scalability.
Design and develop APIs.
Participating in the design and creation of scalable software.
Taking lead on projects, as needed.
Maintenance of code integrity and organisation.
Writing clean, functional code on the back-end.
Compile and analyse data, processes, and codes to troubleshoot problems and identify areas for improvement.
Testing and fixing bugs or other coding issues
Meet both technical and consumer needs.
Write technical documentation
At least 10 years of specific expertise in Back-end: Vert.x, Kotlin, Java (> 17), Spring Boot (WebFlux), Hibernate.
At least 6 years of specific expertise in Architecture & Integration: Microservices Architecture, API-driven Development, AS4.
At least 6 years of specific expertise in Database: MongoDB, PostgreSQL, Virtuoso Triple Store, OpenSearch.
At least 6 years of specific expertise in Containerization & Orchestration: Docker, Kubernetes.
At least 5 years of experience in Security: OpenID Connect, OAuth2, TLS, Keycloak.
At least 6 years of specific expertise in Security Testing & Dependency Management: SAST, DAST, Fortify, SonarQube, Sonatype, Dependency-Track, Maven.
At least 10 years of specific expertise in Collaboration & Productivity Tools: JIRA, Confluence, Office 365, SharePoint
Level : 10
Delivery mode: Near Site (Brussels)
Deadline 05/12/25