Владислав

DOVHAL VLADYSLAV
Node.js Backend About Me:
Developer
Backend developer with 0.5 years of
[open contact info](look above in the "contact info" section) commercial experience. Specializing in
@[open contact info](look above in the "contact info" section) authentication systems, Dockerized
applications and database design. Also
Telegram GitHub LinkedIn worked with dashborads and e-commerce.

Skills Languages
Backend: JS, TypeScript, NodeJS, English (B1-B2)
Express, NestJS, SQL, PostgreSQL, Ukrainian (Native)
Docker, WebSockets, PrismaORM Russian (Native)

Frontend: React, NextJS, Redux,
Redux Toolkit

Freelance Experience
Nest Auth
Backend authentication/authorization service

Stack: NestJS, TypeScript, Prisma, PostgreSQL, Docker, JWT, React
Project: https://github.com/montenwav/nest-auth

• Built authentication service supporting JWT access/refresh tokens,
token rotation and multi-device session management.
• Implemented Google OAuth authentication and role-based access control.
• Added Docker Compose configuration for local development and testing.
• Developed a frontend interface for API testing and authentication flow validation.

CS2 Demo Analyzer
Backend service for analyzing Counter-Strike 2 demo files.
Stack: JS, NodeJS, MongoDB, GeoJSON

• Built a spatial analysis pipeline for CS2 demos using GeoJSON map data.
• Implemented player-to-zone detection algorithms based on in-game coordinates.
• Developed statistical modules for kill hotspots, trap positions,
and player movement analysis.
• Verified algorithm accuracy using real demo recordings.