Vitaliy

Full-Stack Developer with 1.5+ year of commercial
experience in building and maintaining scalable web
applications. Skilled in front-end and back-end development,
API integrations, and deployment automation. Experienced in
team collaboration with QA engineers, DevOps specialists,
UI/UX designers, and project managers within an agile
environment.

Front-End

- TypeScript, JavaScript (ES6+), React, Next.js, React Native
(Expo), Ionic.
- React Hook Form, React Router, Redux Toolkit, Zustand
(Persist), TanStack (Query,Table).
- HTML5, CSS3, Tailwind CSS, MUI, Shadcn, responsive UI
development, Recharts
- Form validation (Zod, Yup), rich-text editors (React Quill),
SSR/SPA architecture, i18n
- Authentication via NextAuth, Google Cloud Oauth
Vitaliy Khatsey - Integration with REST APIs and WebSockets (Socket.io,
reconnect-websocket)
- Canvas-based graphics and image editing using Fabric.js
Full-Stack Developer (object manipulation, transformations, export, custom
controls)
Details
Back-End
[открыть контакты](см. выше в блоке «контактная информация»)
- Node.js, Express, NestJS
[открыть контакты](см. выше в блоке «контактная информация») - Prisma ORM, (PostgreSQL, MongoDB), Mongoose, Redis
- Supabase (auth, storage, cron actions, triggers)
GitHub - Email and push notifications (SendGrid, Twilio, OneSignal,
Brevo)
- Background jobs and scheduling (NestJS Cron, Supabase
LinkedIn
Edge Functions)
- API documentation and testing (Swagger / Postman)
- Database seeders and initial data setup

Languages Payments & Integrations
• English — Intermediate + - Experience integrating payment systems including Paytiko,
(B1-B2) Stripe
- Implemented secure transaction flows, webhook handling,
• Ukrainian — Native and payment status tracking

DevOps & Tools
Education - Git / GitHub (branching strategy, PR review)
- Docker, GitHub Actions
Master’s degree in Cyber Security - AWS (EC2, Amplify, Route 53, S3): hosting front-end and
back-end, domain management, DNS configuration, and file
National Aviation University, Kyiv storage
- Monorepo (Yarn, Husky): modular project structure, shared
libraries, pre-commit hooks, and efficient build pipelines