Владислав Орлов

I build full-cycle GIS-platforms—from prototype to high-load production—using React, TS, Node.js (Express), SQLite, Leaflet, Docker, and Webpack. I’ve been the single developer responsible for client-side architecture and infrastructure.

I drive performance with a hands-on approach: I audited and refactored resource loading (lazy loading, defer scripts, WebP/AVIF), raising Lighthouse Performance from 50% → 95% (Desktop) and 30% → 85% (Mobile). I also implemented tile caching in IndexedDB, cutting repeat map load time by 70%, and tuned Webpack (module caching, bundle optimization) to reduce build time from 3 minutes to 10 seconds—accelerating CI/CD and development for a 7-person team.

On the backend, I designed and implemented a modular REST API on Express.js using Prisma for PostgreeSQL, and added JWT-authentication with RBAC for clean admin/user access control. On the client, I built a custom dynamic clustering algorithm in Leaflet to aggregate/de-aggregate >10 000 geoobjects in real time without FPS drops, and delivered event logging with advanced filtering and pagination. I containerized with Docker (docker-compose), set reverse-proxy via Nginx, organized Zero-Downtime deploys to remote Linux servers, and ran CI/CD pipelines on push to main—while supporting the team through >30 code reviews, onboarding, task decomposition, and technical communication with stakeholders.