Senior GIS Migration Developer

This role is for one of Weekday’s clients

Requirements

• Lead enterprise migration project from Geocortex Essentials and HTML5 web mapping applications to ESRI JavaScript API 4.x.
• Critical role requiring deep expertise in legacy GIS migrations and modern web mapping technologies.

• Lead end-to-end migration of 20+ enterprise web mapping applications from JavaScript API 3.x to ESRI JavaScript API 4.x, ensuring functional equivalency with Geocortex Essentials 4.15.

Core GIS Technologies & Versions

• ESRI JavaScript API 4.x – Expert (4.15+ preferred)
• VertiGIS Studio – Extensive hands-on workflow development
• Geocortex Essentials 4.15 – Deep architecture & functionality knowledge
• ArcGIS Enterprise – Server configuration & deployment
• Utility Network (UN) – Migration experience required
• Geometric Network – Legacy system understanding

Web Development Stack

• JavaScript/TypeScript (ES6+, modern frameworks) – Advanced
• HTML5/CSS3 – Responsive development expert
• C#/.NET Framework – Web services, custom modules, handlers
• SQL Server – Database design, stored procedures, optimization
• SOAP/REST Web Services – Development & integration

Workflow Technologies

• Geocortex Workflow (GWF4) – Migration experience required
• VertiGIS Studio Workflow 5 (VWF5) – Implementation expertise
• Custom Workflow Development – Business logic migration

Enterprise Integration Technologies

• Active Directory Federation Services (ADFS) – Authentication
• SQL Server Reporting Services (SSRS) – Report migration & development
• Payment Gateway Integration (e.g., Moneris)
• Document Management Systems – Integration experience

• Permit management systems (ROW permits, banner permits)
• Asset management (water, sanitary, storm infrastructure)
• Contractor portals with secure access
• Incident management & inspection systems
• Maintenance scheduling (snow clearing, street sweeping)
• Public-facing land inventory systems
• Defect logging & tracking systems

• ADFS Integration – Enterprise authentication
• Role-Based Access Control – Multi-level security
• Secure Portal Development – Public/internal differentiation

• Legacy system migration – Large-scale GIS migrations
• Data migration – Spatial & attribute data conversion
• Workflow translation – GWF4 → VWF5
• API modernization – JavaScript 3.x → 4.x
• Template development – Reusable frameworks

• Migration of 15+ enterprise GIS apps in a single project
• Geocortex → VertiGIS Studio migration projects
• Municipal/government GIS implementations
• Utility industry asset management systems
• Complex workflow migration (50+ custom workflows)

• Third-party services integration
• Database synchronization
• Email notification systems
• File/document retrieval systems
• Reporting system migration
• Payment processing integration

• ESRI ArcGIS JavaScript API 4.x
• VertiGIS Studio Developer Tools
• Visual Studio / .NET Development
• SQL Server Management Studio
• Git Version Control
• ESRI ArcGIS Pro

• 8+ years enterprise GIS development
• 3+ years Geocortex → VertiGIS migration experience
• Proven JavaScript API 3.x → 4.x migrations
• Enterprise project leadership experience
• Bachelor’s degree in GIS, Computer Science, or equivalent

• Applications include:

• Banner Management (permit workflows, approvals)
• ROW Permits (payment integration, validation)
• Contractor Mapping (secure access, document retrieval)
• Community Services (property searches, reporting)
• Defect Log Management (asset tracking, workflows)
• Water/Sanitary/Storm Management (incidents, valve tracking)
• Snow/Street Operations (routing, scheduling)
• Land Inventory (public portal, hold management)

• Maintain functional equivalency with Geocortex Essentials 4.15
• Preserve security standards (ADFS, access control)
• Maintain SSRS integration & reporting
• Ensure Utility Network readiness (2026 migration)
• Create reusable templates for future apps

• ESRI JavaScript API Developer Certification
• VertiGIS Studio Developer Certification
• Microsoft .NET Certifications

• Duration: 11–12 months
• Start Date: Immediate
• Methodology: Agile (staged migrations)

1. Portfolio of similar migration projects with before/after examples
2. Technical documentation of previous Geocortex migrations
3. Client references from enterprise GIS migration projects
4. Detailed timeline & methodology for this project