GIS Web Developer

Job Description

REQUIREMENTS

• 3+ years working with ArcGIS REST API and Feature Services
• Strong JavaScript/React experience with Hooks and state management
• Understanding of spatial concepts: coordinate systems (4326/3857), projections, buffers, spatial queries
• Experience building interactive web maps with Leaflet, Mapbox, or ArcGIS Maps SDK
• Proficiency with REST APIs and asynchronous JavaScript (async/await, Promises)
• SQL and database experience (SQLite, PostgreSQL, or similar)

Preferred

• esri-leaflet library and OAuth 2.0 token management experience
• OpenAI API or LLM integration background
• Geospatial algorithms knowledge (Haversine, centroid calculations, polygon operations)
• Node.js/Express backend development skills
• Docker/containerization experience
• Previous GIS chatbot or natural language query work

RESPONSIBILITIES

• Implement spatial query types including polygon intersections and multi-layer queries
• Build interactive Leaflet-based map visualizations with custom styling and popups
• Optimize ArcGIS REST API performance and reduce query latency
• Develop data pipelines connecting SQLite, ArcGIS, and React frontend
• Create natural language to SQL WHERE clause generators
• Implement client-side filtering, caching strategies, and geometry rendering optimization

Are you interested in this position?

Apply by clicking on the “Apply Now” button below!

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