Andrii D.

I am a GIS Specialist with 15+ years of professional experience in geospatial data creation, processing, cleaning, analysis, and visualization. My main focus is helping clients turn raw spatial data into accurate, well-structured, and useful maps, datasets, and analytical outputs. I can help with: • Creating, editing, cleaning, and validating geospatial data • Spatial analysis and geoprocessing in QGIS, ArcGIS, and PostGIS • Working with OpenStreetMap, custom datasets, satellite imagery, and DEM data • Geocoding, address validation, and location-based analysis • Data conversion between Shapefile, GeoJSON, KML/KMZ, GeoPackage, CSV, and other GIS formats • Georeferencing historical maps, plans, drawings, and scanned documents • Digitizing features and creating clean polygon, line, and point datasets • Preparing spatial data for web maps and online platforms • Creating simple interactive web maps using Mapbox, Leaflet, and related tools • Building custom Mapbox styles and clear map visualizations • Automating repetitive GIS tasks with Python scripts, including AI-assisted scripting when useful • Data quality control, topology checks, and final dataset preparation I pay close attention to data accuracy, clean structure, topology, attributes, and visual presentation. My goal is to deliver GIS results that are not only technically correct but also easy to understand and ready to use. If you need reliable help with GIS data, spatial analysis, geocoding, map creation, data cleaning, or web mapping, I would be glad to support your project.