Senior GIS Architect / Expert (Esri Ecosystem)
Couillet (Charleroi), Belgium (Hybrid)
Full-time | 12-month contract (renewable)
Start: September 2026
About the Role
We are looking for a Senior GIS Architect / Expert to support the evolution of a large-scale geospatial platform used across public-sector water operators.
You will play a key role in designing, developing, and optimizing GIS solutions, working across the full lifecycle—from business analysis and functional design to development, deployment, and continuous improvement.
This is a high-impact, expert-level position within a complex and data-rich environment leveraging the Esri ecosystem, spatial databases, and data integration tools.
Key Responsibilities
Business & Functional Analysis
* Lead workshops with business stakeholders to gather and refine requirements
* Challenge needs to ensure consistency, feasibility, and added value
* Produce detailed functional specifications, including:
o Business rules
o Use cases
o Acceptance criteria
* Model business processes (UML/BPMN) and data flows
GIS Solution Design & Development
* Design and configure solutions using:
o ArcGIS Enterprise & ArcGIS Pro
o Experience Builder, Field Maps, Survey123, Dashboards
* Publish and manage GIS services and layers
* Develop and maintain custom geospatial applications
Data Integration & Automation
* Design and optimize FME workflows (Desktop & Flow)
* Integrate data from multiple sources:
o PostgreSQL / PostGIS
o Web services (REST / OGC)
* Automate processes using Python (ArcPy)
Testing & Quality Assurance
* Define and execute test scenarios and UAT support
* Perform unit testing, debugging, and issue resolution
* Ensure solutions meet performance, quality, and security standards
Documentation & Change Management
* Produce technical and functional documentation
* Support user adoption and change management initiatives
* Contribute to user guides and operational documentation
Required Skills & Experience
* Minimum 10 years of experience in GIS (functional analysis and/or development)
* Strong expertise in the Esri ecosystem:
o ArcGIS Pro & ArcGIS Enterprise (administration, publishing, optimization)
o Experience Builder, Survey123, Field Maps, Dashboards
* Advanced knowledge of Utility Network concepts
* Strong experience with:
o SQL, PostgreSQL, PostGIS
o Python (ArcPy)
o FME Desktop / FME Flow
* Solid skills in:
o UML / BPMN modeling
o Functional specifications and workshop facilitation
Nice to Have
* Experience with DevOps practices (Git, CI/CD, deployments)
* Esri certifications (Enterprise Administration, Utility Network, Desktop Professional)
* FME Certification (Certified Professional)
* Experience in water, utilities, or public sector GIS projects
Languages
* French – Native or bilingual proficiency
* English – Technical knowledge required