Oleksandr Skrypnychuk

Backend/Full-stack developer specializing in .NET (C#, ASP.NET Core) and React. Currently studying Software Engineering at Lviv Polytechnic National University (GPA 97.6), while building my own commercial-grade projects in parallel. I actively use modern AI tools (Claude Code) to speed up development — the same way most teams in the industry do today. I pick up new technologies quickly, take deadlines seriously, and prefer shipping projects to a working state rather than leaving them half-finished.

Key Skills

• Backend:
  • ASP.NET Core (C#) — REST API, Entity Framework Core, OAuth2 authorization
  • Python / FastAPI
  • PostgreSQL, MongoDB — schema design, query optimization
  • Docker — containerization and deployment
• Frontend:
  • React (Vite), TypeScript
  • Map integrations (Leaflet), interactive dashboard development
• Other:
  • Working with external APIs (Gemini Vision AI, Copernicus Data Space)
  • Image processing (SkiaSharp), cloud storage (Cloudinary)
  • Git/GitHub, basic CI/CD

Portfolio Project

GeoAI-UrbanTracker — a full-stack geospatial application for detecting urban development changes from Sentinel-2 satellite imagery, using Gemini 2.5 Flash Vision AI for image analysis. Implements spectral index computation (NDVI/NDBI/NDWI), pixel-level diff analysis, token caching, and a React frontend with interactive maps and animated UI. Stack: .NET 10, React/Vite, PostgreSQL, Docker.

Experience

• Practical test assignment for a Junior Web Designer position (INFUSE) — table-based email template and two landing page designs for the ExtraHop Networks campaign.
• Technical test assignment for VectorShift — React/Python pipeline builder with DAG-based logic.
• 3rd place at a Robotics Hackathon (ROS2, DoBot MG400).

Open to backend/full-stack tasks, API integrations, bug fixes, and MVPs — delivered quickly and with quality, while growing a portfolio of real-world cases.