Job Description

Senior GIS Systems Developer (ArcGIS Platform)
Start Date: 03 August 2026
End Date: 12 July 2027

We are looking for a Senior GIS Systems Developer to support the development, administration, and optimization of enterprise GIS solutions. You will play a key role in maintaining and enhancing the ArcGIS environment, developing GIS applications, and ensuring the reliability and performance of the GIS platform.

Key Responsibilities:

• 
  Develop, test, debug, and maintain GIS applications and solutions.
• 
  Administer and support the ArcGIS Enterprise platform, including installation, upgrades, troubleshooting, and architecture.
• 
  Manage ArcGIS Portal, ArcGIS Online, and ArcGIS Pro environments.
• 
  Perform geocoding, spatial data processing, and database query development.
• 
  Implement GIS best practices for server infrastructure, monitoring, load balancing, logging, and patch management.
• 
  Collaborate within Agile development teams and contribute to continuous platform improvements.
• 
  Support GIS operations through system optimization and technical expertise.

Key Requirements:

• 
  Minimum 5 years' experience developing GIS systems.
• 
  At least 6 years' experience with ArcGIS Enterprise administration and ArcGIS platform best practices.
• 
  Strong expertise in ArcGIS Portal, ArcGIS Online, ArcGIS Pro, and Windows Server administration.
• 
  Experience with geocoding, vector and raster data, spatial databases, and SQL queries.
• 
  Knowledge of Agile methodologies and ITIL.
• 
  Experience with VertiGIS, Geocortex, Kibana, and Identity Provider (IDP) integration is an advantage.
• 
  Native-level Dutch (CEFR C2).
• 
  Hybrid working available by mutual agreement.