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Sword Group

Back-end developer- Java/Kotlin

Sword Group
Belgium · Full-time · Entry

Job Description

Job Tasks:

  • 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.


Job Requirements

Specific Expertise:

  • Back-end: Vert.x, Kotlin, Java (> 17), Spring Boot (WebFlux), Hibernate
  • Architecture & Integration: Microservices Architecture, API-driven Development, AS4
  • Database: MongoDB, PostgreSQL, Virtuoso Triple Store, OpenSearch
  • Containerization & Orchestration: Docker, Kubernetes
  • Security: OpenID Connect, OAuth2, TLS, Keycloak
  • Security Testing & Dependency Management: SAST, DAST, Fortify, SonarQube, Sonatype, Dependency-Track, Maven
  • Collaboration & Productivity Tools: JIRA, Confluence, Office 365, SharePoint


Knowledge and (Non-Technical) Skills:

  • Ability to apply high quality standards to all tasks
  • Ability to participate in multi-lingual meetings, good communication skills
  • Capability of working in an international/multicultural environment, rapid self-starting capability and experience in working in a team, understanding the needs, objectives, and constraints of those in other disciplines and functions
  • Ability to adapt to unplanned changes or decisions
  • Ability to understand, speak and write in English C2
  • High degree of discretion and integrity is required as the applications managed and maintained in SANTE.R.4 contain personal and confidential data

Key Skills

Ranked by relevance

microservices spring boot postgresql confluence storage kotlin docker server java jira
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Posted
Jan 29, 2026
Type
Full-time
Level
Entry
Location
Brussels

Industries

IT Services IT Consulting

Categories

Engineering Information Technology

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