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🌍 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.

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.

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.

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.

𝗙𝗼𝗿 𝗳𝗼𝘂𝗻𝗱𝗲𝗿𝘀, 𝗖𝗘𝗢𝘀, 𝗖𝗧𝗢𝘀, 𝗮𝗻𝗱 𝗜𝗧 𝗠𝗮𝗻𝗮𝗴𝗲𝗿𝘀 - a senior System Administrator, at your service. How can I help you? I'll fix and keep your linux and windows servers, email, AWS infra, CI/CD, and networks running to your requirements. With 20+ years of IT experience, I work across Linux, Windows Server, AWS, and VM/VPS environments. I'm an expert in troubleshooting infrastructure problems, planning and deploying new infrastructure, migrating systems, documenting existing environments. And I provide ongoing support with server management. My advantage is a cross-layer experience: • If a page takes 40 seconds to load, I can trace the problem through the application, web server, OS, network, database, and storage instead of guessing at one layer. • When I plan a cloud infrastructure, I consider not only AWS Well-Architected Framework, but also the application and OS fundamentals themselves. Combined with deep operational and business experience and the ability to learn unfamiliar systems quickly, this helps me build solutions that fit the actual business. A few examples: • Migrated a complex WordPress environment from Amazon Web Services to Vultr after 4+ months of failed attempts: used Terraform, Ansible, and Cloudflare Workers. The migration was completed in 1 week. • Reduced PostgreSQL query times from 40-80 seconds to 0.4-2 seconds on a 35 GB / 31M-record dataset: used query optimization, indexing, materialized views, and PostgreSQL tuning. • Reduced WordPress/server response times from 5-9 seconds to 0.8-1.2 seconds: fixed ModSecurity, MySQL, RAM pressure, and PHP-FPM issues. • Recovered a 5+ GB MySQL database with damaged InnoDB tables where there were no usable backups: used sysadmin magic and a bit of luck. I troubleshoot costs and performance using the scientific method, not random guesses. My IT management and customer support background let me prepare and apply changes systematically, test them, and keep a rollback plan. I work iteratively with planned changes, priorities, automation, monitoring and documentation. I have a 100% Job Success Score and 5.0 rating on Upwork. After all, I prefer long-term partnership, so put the quality at the top. 𝗛𝗮𝘃𝗲 𝘀𝗼𝗺𝗲𝘁𝗵𝗶𝗻𝗴 𝘁𝗵𝗮𝘁 𝗻𝗲𝗲𝗱𝘀 𝗳𝗶𝘅𝗶𝗻𝗴, 𝗺𝗶𝗴𝗿𝗮𝘁𝗶𝗻𝗴, 𝗼𝗽𝘁𝗶𝗺𝗶𝘇𝗶𝗻𝗴, 𝗼𝗿 𝗯𝘂𝗶𝗹𝗱𝗶𝗻𝗴? 𝗦𝗲𝗻𝗱 𝗺𝗲 𝗮 𝗯𝗿𝗶𝗲𝗳. 𝗜’𝗹𝗹 𝗹𝗼𝗼𝗸 𝗮𝘁 𝗶𝘁 𝗮𝗻𝗱 𝘁𝗲𝗹𝗹 𝘆𝗼𝘂 𝘄𝗵𝗮𝘁 𝗜’𝗱 𝗱𝗼. As an expert and specialist, as a Linux Server Administrator, I work with Ubuntu, Debian, CentOS, AlmaLinux, and CloudLinux. As a Windows Server Administrator, I work with Microsoft Active Directory, Group Policy, patching, hardening, and access control. My system administration work includes Linux, Windows Server, Virtual Private Server environments, Docker, VPN, firewalls, DNS, SSL/TLS, Cloudflare, monitoring, network administration and network security. I'm an experienced sysadmin, so you can bet on getting a reliable, hands-on Senior Systems Administrator for your tasks, a kind of infrastructure specialist. For automation and DevOps, I use Python, Bash, Terraform, and Ansible. I also work with WordPress, PHP, Nginx, Apache, cPanel/WHM, Plesk, and email infrastructure in Linux System Administration environments. For databases, I work with MySQL, PostgreSQL, and MSSQL, including performance tuning, indexing, migrations, backup and recovery, and troubleshooting across the application and infrastructure layers.

✔︎ 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