Дмитро

DMITRIY
VOLOTKOVSKIY
Full-stack developer

Projects
chat-core — fullstack chat application (2026, in progress)
Built with NestJS + Prisma + PostgreSQL on backend, Next.js + React + TypeScript +

Contact Tailwind on frontend, structured as workspaces monorepo
Implemented JWT authentication with refresh token rotation and axios interceptor
deduplication
Phone Built JWT-authenticated WebSocket gateway; designed data-layer authorization
[відкрити контакти](див. вище в блоці «контактна інформація»)
Core Prisma models: User, RefreshToken, Chat, Participant, Message
[відкрити контакти](див. вище в блоці «контактна інформація»)

Email Fishing Store — fullstack E-commerce university team project
[відкрити контакти](див. вище в блоці «контактна інформація»)
Built with Express + PostgreSQL + Prisma (backend) and Next.js + React + TypeScript

Address (frontend)
Hungary, Mosonmagyaróvár Designed the database schema (normalized, hierarchical categories) and
implemented JWT-based authentication
Telegram Integrations: GitHub Webhooks, Nova Poshta API, maps
@Volotkovskiy_Dmitriy

GitHub
VolotDmitriy
Technologies / Stack
Programming Languages & Tools
Education JavaScript (ES6+), TypeScript
Java (Swing, AWT, OOP, Multithreading) university coursework - basics
V. N. Karazin Kharkiv C, C++ (Pointers, Memory Management) university coursework - basics
National University Git, GitHub

Bachelor of Cybersecurity v0 (Vercel) — UI prototyping/scaffolding
2020 - 2024 JSON Server (mock API for frontend development)

Magister of Cybersecurity Backend
2024 - 2025 Node.js (Express.js, NestJS)
RESTful API, WebSockets

Soft skills JWT Authentication
Prisma ORM
Express middleware (auth guards, error handling)
Flexibility Webhooks (GitHub)
Teamwork
Frontend
Problem-Solving
React.js, Next.js
Ability to adapt quickly Redux Toolkit

Time-management React Hook Form, Zod (validation) - basic
ShadCN/UI, Tailwind CSS,
Critical thinking TanStack Table (sorting, filtering, pagination)
Self-reliance HTML5, CSS3, SCSS

Databases & Storage
Language PostgreSQL
MongoDB — basic experience

English - B1 Render (database hosting)

Ukrainian - Native Speaker Learning Goals
Docker, AWS S3, CI/CD, WebRTC, LLM integrations, and deepening
Russian - Native Speaker current stack to build more advanced projects