GIS DEVELOPER – MEDIOR BACKEND/ FRONTEND / R-SHINY - Brussels - Freelance / CDI

AlterSolutions

Brussels, Brussels, Belgium permanent

Posted: April 7, 2026

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Quick Summary

Develop and maintain GIS applications using open-source Java technologies and web frontend frameworks, collaborating with business teams to translate mapping requirements into robust technical solutions.

Required Skills

GIS Development Java Development Spring Framework Frontend Development JavaScript Angular OpenLayers Leaflet Spatial Databases PostGIS Oracle Spatial GeoServer

Job Description

Our client is a leading international telecommunications and digital services provider, operating in a highly regulated and large‑scale environment.

• Develop and maintain GIS applications based on open-source Java technologies and web frontend frameworks.

• Design and deploy mapping services using GeoServer, PostGIS, and Oracle Spatial.

• Develop dashboards and interactive applications with R / Shiny.

• Set up development and deployment environments via Docker.

• Collaborate with business teams to translate mapping requirements into robust technical solutions.

• Proficiency in Java and associated frameworks (Spring, etc.).

• Skills in cartographic frontend development (JavaScript, Angular, OpenLayers/Leaflet).

• Knowledge of spatial databases (PostGIS, Oracle Spatial).

• Experience with GeoServer and OGC standards.

• Hands-on experience with Docker (containerization, deployment).

• Development in R / Shiny for interactive visualizations.

• DevOps knowledge (CI/CD, etc.).

Profile:

Experience in GIS projects (at least 2–3 years)

Knowledge: See above – Telco HFC and FTTP

Languages: 

Fluent in French and English

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