Webgis Developer

Title: WebGIS Full Stack Developer (Contract/Freelance)

Employment type: Contract / Freelance

Work style: Hybrid – on-site approximately once per week (or one day twice per month - dependent on location), Main Office based in Ispra

Overview

We are looking for an experienced WebGIS Full Stack Developer to support the design, development and maintenance of web-based GIS applications. The role involves working across the full stack with a focus on Drupal, cloud storage, and integrating large language models via the OpenAI API.

Responsibilities

• Design, develop and maintain WebGIS applications and services.
• Implement and customise Drupal-based solutions for web mapping and related content.
• Integrate and manage data storage using S3 buckets.
• Develop and integrate LLM-based features using the OpenAI API.
• Build, consume and maintain RESTful APIs and backend services.
• Ensure application performance, scalability and security across the stack.
• Troubleshoot and resolve issues across front-end, back-end and infrastructure components.
• Collaborate with stakeholders to translate functional requirements into technical solutions.
• Produce clear technical documentation and handover materials.

Required Experience & Skills

• Bachelor’s degree in Computer Science, Software Engineering, GIS or a related field.
• Minimum 10 years of professional software development experience.
• Strong experience with WebGIS or web-based mapping applications.
• Solid hands-on experience with Drupal (configuration, custom modules, theming).
• Experience managing and integrating S3 bucket storage (e.G. for assets, data, backups).
• Proven experience integrating LLMs and/or AI features using the OpenAI API or similar.
• Full stack development experience, including front-end and back-end technologies.
• Strong knowledge of REST APIs and JSON-based integrations.
• Experience working with cloud-based environments.

If you meet the above requirements and are available for contract work, please apply with your CV, availability and a brief summary of your relevant WebGIS and Drupal experience.