16533
16-04-2026
GIS Developer
Brussels, BE

Key Duties / Responsibilities

  • GIS Application Development
    • Design, develop, and deploy web-based GIS applications
    • Use tools like ArcGIS Maps SDK for JavaScript and modern web frameworks
  • Web Mapping & Data Integration
    • Implement and update web mapping functionalities
    • Integrate spatial data via REST APIs
    • Work with both classified and unclassified geospatial data sources
  • Data Processing & Management
    • Perform data conversion and preprocessing using Python and spatial ETL tools
    • Create and manage geospatial data models, layers, and map services
  • System Performance & Optimization
    • Configure map services for efficient web delivery
    • Optimize backend queries and map rendering performance
  • Documentation
    • Maintain technical documentation (code, architecture, service endpoints)
  • Compliance & Quality
    • Ensure applications meet security, usability, and accessibility standards
  • Collaboration & Support
    • Work under supervision of the GIS Project Manager
    • Support development and maintenance of GIS systems
    • Provide knowledge transfer to internal staff
    • Contribute to additional projects as required

Requirements (Experience, Skills, Qualifications)

Experience

  • Minimum 5 years in web development (JavaScript/HTML frameworks like React, Vue, Angular)
  • Hands-on experience with web mapping tools (e.g., ArcGIS Maps SDK)
  • Strong experience in Python for geospatial processing (ArcPy, GeoPandas, GDAL, etc.)
  • Experience building backend services or geospatial processing pipelines

Technical Skills

  • GIS/web mapping development
  • REST API integration
  • Spatial data handling and ETL processes
  • Performance tuning (backend frontend)
  • Version control (Git)
  • Agile development practices

Education

  • Bachelor’s degree in:
    • Computer Science
    • Geography
    • IT or related field

Languages

  • English: Advanced
  • French: Beginner

Soft Skills

  • Strong communication skills
  • Ability to work independently and in teams
  • Analytical and problem-solving abilities

Other Requirements

  • Familiarity with security and compliance standards
  • Willingness to work 100% on-site in Brussels

Security Clearance

  • Must hold active NATO Secret clearance
  • Must sign a Non-Disclosure Agreement (NDA)

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