Job Description

Open Source Developer (Java | GIS | Cloud)

Namur, Belgium (Hybrid)

Contract: June 2026 – April 2027

Experience: 3–5 Years

About the Role

We are looking for a passionate Open Source Developer to design and build innovative applications where mapping, geolocation, and computing come together.

You will work in a collaborative team of analysts, architects, and developers, contributing to the development of high-performance, user-centric solutions and helping shape the future of geospatial platforms.

Key Responsibilities

• 
  Develop scalable applications using Java, Spring Boot, and modern JavaScript frameworks
• 
  Contribute to software architecture design and evolution
• 
  Ensure code quality, testing, and performance optimization
• 
  Participate in all phases of development:
  • 
    Design
  • 
    Development
  • 
    Integration
  • 
    Optimization
• 
  Solve complex technical challenges and stay updated on emerging technologies

Tech Stack

• Backend: Java, Spring Boot
• Frontend: React, Vue.js (or similar), HTML5, CSS3
• GIS & Mapping: OpenLayers, Geographic Information Systems (GIS)
• Databases: Relational & NoSQL (JPA, Hibernate)
• Cloud: AWS, GCP, Azure
• Other: Linux, Docker, NGINX/HTTPD, Microservices, REST APIs

Required Skills & Experience

Core Requirements

• 
  Bachelor's or Master's degree in Computer Science or related field
• 
  3–5 years of experience in software development
• 
  Strong proficiency in Java
• 
  Experience with at least one modern front-end framework (React preferred)
• 
  Experience or interest in GIS / geospatial technologies

Additional Skills

• 
  Knowledge of cloud platforms (AWS, Azure, or GCP)
• 
  Familiarity with microservices architecture and APIs
• 
  Experience