Senior GIS Specialist

Mechelen, Belgium
Full-time (100%) | Hybrid | Time & Materials
Start Date: 23 June 2026
Application Deadline: 20 May 2026
Contract Duration: Until 23 June 2027

We are looking for a Senior GIS Specialist to support the maintenance, optimisation, and further development of large-scale ESRI Enterprise GIS environments within a complex utility and asset management landscape.

You will join a multidisciplinary product team of IT and business specialists working on the continuous evolution of a GIS-centric asset management platform. The role combines GIS expertise, infrastructure management, automation, development, and operational support within enterprise-scale ESRI environments.

Key Responsibilities

• Maintain and improve ESRI Enterprise GIS systems
• Monitor GIS environments and platform performance
• Upgrade software and supporting server infrastructure
• Deploy patches and manage application lifecycle updates
• Automate application deployments and release processes
• Perform technical analyses and propose improvements
• Develop scripts and automation solutions using PowerShell and Python
• Contribute to development tasks using .NET technologies
• Support operational management and standard maintenance activities
• Troubleshoot and resolve technical incidents affecting GIS applications
• Work with SOAP and REST web interfaces and integrations
• Collaborate closely with IT, infrastructure, and business teams

Required Experience & Skills

Minimum 5 years' experience with Geocortex and/or VertiGIS Studio products
Minimum 5 years' experience maintaining and improving ESRI Enterprise systems
Minimum 5 years' experience developing in .NET
Minimum 5 years' experience developing GIS systems
Minimum 5 years' experience with SOAP and REST web interfaces
Strong analytical, organisational, and communication skills
Proactive, solution-oriented, and adaptable mindset
Dutch proficiency at CEFR C2 level

Nice to Have

• Experience with OTAP release environments
• Experience with IIS web server software
• Knowledge of relational databases such as Oracle and SQL
• Experience working with Agile development methodologies
• Experience with automated deployment and release management
• Experience within enterprise-scale GIS environments

Candidate Profile

You are:

• A senior GIS professional with strong technical and development expertise
• Comfortable working in complex ESRI Enterprise environments
• Experienced in infrastructure maintenance, upgrades, and automation
• Strong in troubleshooting and operational support
• Able to balance hands-on technical work with strategic improvements
• Collaborative, communicative, and proactive in problem-solving
• Comfortable working within large multidisciplinary teams

Work Environment

• Hybrid working model with telework flexibility
• Occasional travel to other office locations may be required
• Full-time assignment within a large-scale GIS transformation programme
• Occasional after-hours work may be required for releases and deployments
• Opportunity to contribute to enterprise GIS innovation and operational excellence