Ammar Y.

I build fast, interactive web maps and GIS platforms, from ArcGIS Experience Builder widgets to custom Mapbox/React dashboards and AI-powered geospatial tools. $40K+ earned · 1,000+ hours on Upwork · MSc Geospatial Technologies (Münster / NOVA Lisbon) · GIS Developer at TU Dresden WHAT I BUILD • Web GIS apps & dashboards: React + Mapbox GL JS, Leaflet, OpenLayers, ArcGIS Maps SDK for JavaScript • ArcGIS Online/Enterprise: custom Experience Builder widgets, dashboards, spatial analysis • Geospatial backends: PostgreSQL/PostGIS, GeoServer, Node.js/Django APIs, vector tiles • Spatial data pipelines: H3 indexing, Landsat/raster processing, GDAL, GeoPandas, tile servers • GeoAI & automation: AI agents and knowledge graphs on spatial data, automated map/video pipelines • Fixing existing map apps: slow performance, broken layers, projection and coordinate bugs RECENT WORK • H3 spatial indexing project: 400 hrs, 5★ • Automated aerial map videos (Google Aerial View API): "Amazing work 10/10" • Real-time truck tracking map in React, delivered in 1 day, 5★ • Carbon sequestration ArcGIS map: "Excellent GIS developer" • Web GIS water infrastructure dashboard (Sabah, Malaysia) HOW I WORK Clear scope and estimate before I start · regular demos · clean, documented code on Git · good overlap with EU and US hours TOOLS: ArcGIS Pro, QGIS, CesiumJS, Potree, Turf.js, D3.js, Python, SQL, React Native, Docker, AWS, FME Send me your map, data and goal, and I'll reply within a few hours with how I'd build it.