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.
PostGIS
Mapbox
Spatial Analysis
Leaflet
ArcGIS
Python Script
Mapinfo
OpenStreetMap
GIS
Geospatial Data
QGIS
GeoJSON
Georeferencing
SQL
Digital Mapping
KML
Python
Cartography
Google Maps
Google Earth
Serhii S.
Kyiv, Ukraine
$20/hr
5.0
1 jobs
I am an Urban Planning & GIS Specialist with 7+ years of experience in architectural design and spatial data analysis. My work combines traditional urban planning expertise with modern GIS tools — ArcGIS, QGIS, and Python automation — to deliver accurate, well-structured territorial solutions.
What I do best:
— Development of urban planning documentation (general plans, detailed territory plans)
— GIS analysis: land use assessment, spatial and environmental research
— Geodatabase management and workflow automation with ArcPy/Python
— Compliance verification with urban planning legislation and standards
— Preparation of presentation and reporting documentation
I prioritize clear communication, structured workflows, and meeting deadlines. I work closely with engineers, ecologists, and local authorities to coordinate complex multi-discipline projects.
If you need a specialist who understands both the planning side and the technical GIS layer. Currently expanding expertise into spatial data analytics and geospatial data science — combining urban planning domain knowledge with modern data tools.
Architecture
GIS
ArcGIS
Spatial Analysis
Urban Planning
Python
Autodesk AutoCAD
Geospatial Data
Data Analysis
QGIS
Remote Sensing
Python Script
Automation
Scripting
Ihor K.
Lviv, Ukraine
$65/hr
5.0
105 jobs
🌍 GIS Developer | 15+ Years Building Geospatial Systems that Reduce Costs and Scale Operations. Most businesses collect location data but don't fully leverage it. I build geospatial solutions that turn location data into smarter decisions, streamlined operations, and measurable business results:
- 🗺️ Interactive web maps and GIS dashboards
- 🧭 Route optimization and fleet management systems
- 🛰️ Real-time asset tracking and monitoring platforms
- 📊 Spatial analysis and decision-support solutions
💡 I don’t just write code. I focus on solving business problems by leveraging geospatial data to drive smarter decisions, reduce costs, and scale operations.
🚀 Track record:
✔ 15+ years in GIS & full-stack development
✔ 13,700+ hours worked
✔ 120+ milestones completed
✔ 90+ successful projects
✔ 55+ satisfied clients
🏆 Key achievements:
✔ Developed a Non-Emergency Medical Transportation (NEMT) platform with GIS features that helped the client win contracts and grow revenue by more than 30 times
✔ Built a GIS tool that reduced the duration of the land property development potential assessment by more than 1000 times (from days to seconds).
✔ Developed a service for automatic scheduling and routing shared rides, which increased the fleet capacity by more than 20%.
These are examples of how GIS can create a measurable business impact.
🌐 Industries I serve:
- 🚚 Logistics
- 🚑 Healthcare & NEMT (Non-Emergency Medical Transportation)
- 🏡 Real Estate & PropTech
- 🌳 Environmental Monitoring & Sustainability
- and beyond.
🛠️ My services
- GIS consulting and discovery
- Proof of concept for GIS solutions
- Web GIS development
- Mobile GIS development
- Geospatial analysis
- Object detection and recognition on satellite imagery
🤝 How I work
Every project starts with understanding your business processes and goals. This allows me to design a solution that solves the actual problem.
My development process is iterative and usually consists of the following stages:
- Discovery: Analysis and specification of your business needs, project goals, data, and requirements; UI/UX design; high-level architecture design; cost estimation; and development planning
- Implementation
- Testing
- Delivery
After each iteration (typically 1–2 weeks), I provide a demo of completed features and incorporate your feedback. This approach reduces risks, improves transparency, and ensures we stay aligned with your goals.
To improve quality, accelerate development, and reduce costs, I often involve other specialists from our team, such as a Business Analyst, a QA Engineer, a DevOps Engineer, and a Data Analyst. I also use AI tools to accelerate writing code.
🌐 Industry experience
🚚 Logistics & Healthcare Transportation
✔ Transportation request booking and management platforms
✔ Fleet management systems
✔ Route optimization
✔ Dispatch automation: Vehicle Routing Problems (VRP), Dial-a-Ride Problem (DARP)
✔ Cost optimization for Google Maps API
✔ GPS and ETA tracking
✔ Geofencing
✔ API integration with dispatch software
✔ Billing (EDI 837, 835) and payment processing
🏡 Real Estate & PropTech
✔ Integration of geospatial data from multiple sources
✔ Multi-layer map visualization (zones, cadastral data, infrastructure, etc.)
✔ Site selection and suitability analysis tools
✔ Automated geospatial reporting
🌳 Environmental Monitoring & Sustainability
✔ Map-based inventory management systems
✔ Satellite imagery processing and analysis
✔ Object recognition on aerial and satellite imagery using AI/ML
✔ Spatial analytics and decision-support tools
⚙️ Core skills
✔ GIS & Mapping: Mapbox, Leaflet, OpenLayers, Google Maps API, ArcGIS, OSM, OSRM, PostGIS
✔ Frontend: JavaScript, Vue.js, React
✔ Backend: Python, Node.js, PHP (Laravel, CodeIgniter), C#
✔ Databases: PostgreSQL, MySQL
✔ Other: AWS, Docker, API Integration, AI/ML, OpenCV, Data Scraping
Other experience and skills:
✔ Development of ArcGIS (ArcMap, ArcGIS Server) extensions and tools
✔ Building GIS components that can be used in both desktop and web environments (ArcMap, ArcGIS Engine Runtime, ArcGIS Server based web applications)
✔ Implementation of fast boolean operations on large polygon sets (10+ millions)
✔ GIS Specialist
✔ Web GIS Developer
✔ Interactive Map Development
✔ GIS mapping
✔ Web mapping application developer
✔ Mapbox developer
✔ Mobile application developer
✔ Database architecture design
✔ Data analysis
✔ SaaS developer
✔ Logistics supply chain software developer
✔ Supply chain management system
✔ Transportation Management System
✔ TMS software developer
✔ Trucking logistics software developer
✔ Freight management system
✔ NEMT software developer
✔ Booking Management System
✔ Dispatch software developer
📅 Available: 09:00 - 19:00 (GMT+2)
👉 Let’s discuss your goals, challenges, or ideas and explore how geospatial technology can help your business grow.
PostGIS
Web Development
Full-Stack Development
GIS
Mapbox
Google Maps API
ArcGIS
Geospatial Data
Routing
SaaS Development
Logistics Management
Dispatch & Tracking Solutions LETS
Transportation & Warehousing
Dispatch Technologies Dispatch
Data Analysis
Python
Machine Learning
Web Application
Leaflet
QGIS
Vladimir O.
Kharkiv, Ukraine
$80/hr
5.0
134 jobs
Do you need MVP with a map? Do your PostgreSQL works very slow? Do you need customize Mapbox style? Contact me!
Interactive map development (full-stack: Mapbox, Leaflet, Node.js, JavaScript, Vue, React, Python, PostgreSQL, PostGIS), ETL, geospatial data analysis, data visualization (2D and 3D), data entry.
Invite me for an interview and I will make a demo solution for you for free.
Skills:
- interactive map development,
- geospatial data entry,
- real estate data pulling and processing,
- data visualization,
- geodata conversion,
- indoor map (floor plan),
- geodata transformation,
- geospatial analysis,
- cartography,
- vectorization,
- digitizing maps,
- tracing of map data,
- cadastre,
- route map,
- precision agriculture
- VNIR.
Tools and frameworks:
- PostgreSQL,
- PostGIS,
- GDAL/OGR
- Node.js,
- QGIS,
- UMN Mapserver,
- Leafletjs,
- gvSIG,
- JOSM,
- ArcGIS Online,
- Mapbox GL,
- HERE Map JavaScript API
Languages:
- PHP,
- JavaScript,
- Python,
- HTML,
- CSS,
- SQL
Formats:
- Shapefile,
- GeoJSON
- GeoJSON for ServiceNow Facilities Workbench map,
- GeoTIFF,
- KML
- Vector Tiles (mbTiles, .PBF)
- netCDF.
PostGIS
JavaScript
SQL
Digital Mapping
Python
QGIS
ETL Pipeline
Data Mining
Geospatial Data
BigQuery
Mapbox
Data Analysis
Node.js
GIS
Andrii S.
Derazhnia, Ukraine
$15/hr
5.0
5 jobs
Lead GIS Specialist | QA/QC Expert | LiDAR Data Analyst (Ready for remote work worldwide)
With 8 years of experience as a Lead GIS Specialist, I automate QA/QC and LiDAR processing to deliver clean, production-ready datasets 3x faster using Python
Why work with me?
My background as a Lead GIS Specialist means I don't just find errors; I understand the lifecycle of spatial data. I specialize in identifying and fixing topology issues, attribute inconsistencies, and projection errors that others miss.
What I bring to your project:
Expert QA/QC: Deep audit of vector layers (MicroStationV8, QGIS, ArcGIS, MapInfo) to ensure strict adherence to topology rules.
Data Cleaning & Standardization: Transforming messy raw data into clean, production-ready spatial formats.
Large-scale Digitization Management: Expertise in overseeing satellite imagery vectorization from start to finish.
Technical Proficiency: High-performance processing using my dedicated workstation (32GB RAM / RTX GPU) for fast rendering and data handling.
I am focused on efficiency, precision, and clear communication. Let’s ensure your spatial data is accurate and ready for analysis.
GIS
Lidar
QGIS
ArcGIS
Spatial Analysis
Quality Control
Python
Data Analysis
Database Management
Cartography
Satellite Image
JSON
Geospatial Data
GPS
Adobe Photoshop
Mapbox
Oleksandr K.
Kharkiv, Ukraine
$55/hr
5.0
310 jobs
✔︎ Custom geospatial and GIS (Geographic Information System) development
✔︎ GIS data capture and conversion
✔︎ Geoprocessing and geocoding
✔︎ GIS database design
✔︎ 3D GIS mapping and modeling
✔︎ UAV (drone) data processing
✔︎ Remote sensing data processing (Planet, Sentinel-2, Landsat 8)
✔︎ Creating offline maps for iOS and Android applications
✔︎ GIS consulting and training
Based in Ukraine (GMT +3) 🇺🇦
Tools:
⭐ QGIS, ESRI ArcGIS (ArcGIS Pro), MapInfo, GRASS, gvSIG, Global Mapper, CloudCompare, Google Earth Pro
⭐ PostgreSQL/PostGIS, MySQL, SQLite/SpatiaLite
⭐ GeoServer, Mapnik
⭐ Leaflet, Mapbox GL, MapLibre, OpenLayers, Google Maps API, CesiumJS, Potree, Turf.js, MapillaryJS, GeoCV
⭐ Tippecanoe, Tegola, t-rex, Tileserver GL
⭐ GDAL/OGR, rasterio, PDAL, LASTools, sen2cor
⭐ JOSM, iD, imposm3, osm2pgsql, Nominatim, Photon, Pelias
⭐ Agisoft Metashape (Agisoft Photoscan), Agisoft Metashape Python API, Agisoft Metashape Network Processing
⭐ Pix4D, DroneDeploy, OpenDroneMap, WebODM
⭐ OpenSlide, OpenSeadragon
⭐ xeokit-sdk, xeokit-bim-viewer
⭐ Hyper-V, Docker
⭐ npm, Webpack
⭐ Google Cloud Platform, IBM Cloud, DigitalOcean, Bluehost
⭐ AWS EC2, AWS S3
⭐ Windows, Linux (Ubuntu)
⭐ Open Source Routing Machine (OSRM)
Programming languages:
⭐ HTML, CSS, JavaScript
⭐ jQuery, Bootstrap
⭐ Vue.js, Vuetify, Vuex, Vue Router
⭐ Python, Django, Flask, FastAPI
⭐ PHP, Laravel Mix
Data Formats:
📌 ESRI Shapefile (.shp)
📌 ESRI File/Personal Geodatabase (.mdb, .fgdb)
📌 GeoJSON
📌 GeoPackage
📌 SQLite/SpatiaLite
📌 GeoTIFF (.tif, .tiff)
📌 ECW
📌 KML, KMZ
📌 GPS eXchange Format (GPX)
📌 mbtiles
📌 vector tiles (.mvt, .pbf)
📌 OpenStreetMap (.osm, .pbf)
📌 DWG/DXF
📌 LAS/LAZ/PLY/XYZ (Point Cloud, LiDAR)
📌 OBJ (3D Mesh)
📌 NIR, NDVI, NDWI, SWIR, Moisture index
📌 MIRAX (.mrxs), Aperio (.svs, .tif)
📌 Orthomosaic, DSM, DTM, Point Cloud, Contours
Web mapping services & API:
✔︎ OpenStreetMap
✔︎ Mapbox API
✔︎ HERE Maps API for JavaScript
✔︎ Google Maps API
✔︎ 2GIS Maps API
✔︎ Yandex Maps API
Data providers:
✔︎ OpenStreetMap
✔︎ Landsat 8, Sentinel-2, Planet
✔︎ USGS.gov
✔︎ OpenAddresses
✔︎ OpenMapTiles, Planetiler
✔︎ Property parcels data (cadastre)
✔︎ National Hydrography Dataset (NHD)
✔︎ National Agriculture Imagery Program (NAIP)
Industries:
✔︎ Archeology
✔︎ Agriculture
✔︎ Construction
✔︎ Forestry
✔︎ Government
✔︎ Maritime
✔︎ Navigation
✔︎ News and Media
✔︎ Oil and Gas
✔︎ Real Estate
✔︎ Telecom
✔︎ Travel, Tourism
Drones&cameras:
✔︎ DJI Phantom/Mavic/Inspire/Matrice
✔︎ senseFly eBee, Parrot Sequoia
✔︎ XAG
✔︎ MicaSense RedEdge
PostGIS
Python
QGIS
ArcGIS
Data Mining
Mapbox
Photogrammetry
GIS Software
JavaScript
Vuetify
Map Integration
Geospatial Data
Vue.js
OpenStreetMap
GIS
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