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PINIAIEV YEVHENII
JavaScript Developer
Profile
Experienced Full Stack JavaScript developer with expertise in
React.js for frontend and Node.js/Express.js for backend
development. Skilled in designing and implementing robust,
scalable web applications and RESTful APIs. Passionate about
writing clean, efficient code and staying up-to-date with the
latest industry trends and best practices. Committed to delivering
high-quality solutions that meet both technical requirements and
business objectives. Adept at collaborating with cross-functional
[открыть контакты](см. выше в блоке «контактная информация») teams and translating complex technical concepts into clear,
actionable insights.
[открыть контакты](см. выше в блоке «контактная информация»)

github.com/Y-Piniaiev Experience
Ukraine, Kharkiv
Jan Meduzzen Internship — Full Stack Developer
Preferred Contact Method: email 2026 Developed backend with NestJS, PostgreSQL, TypeORM
– Implemented auth (JWT + Auth0), role system, permissions
Ready to move
Apr Built features: users, companies, invitations, quizzes, analytics
Used Redis for temporary data storage
Education 2026
Implemented WebSockets for notifications
Added Docker, CI/CD (GitHub Actions), AWS deploy
Covered business logic with tests
NURE University (Kharkiv)
Frontend:
Bachelor of Software Engineering Built UI with Next.js + shadcn/ui
2020-2026 State management with Redux Toolkit
SSR/CSR data fetching (native fetch)
Working with various technologies
Routing, protected pages, i18n (EN/UA), charts
(Frontend, Backend, Mobile, IoT).
Tech Stack: NestJS, Next.js, TypeScript, PostgreSQL, Redis, Docker, AWS
Learning Computer Science.
Acquainted with Flutter, PHP, Java,
C#, Python. ElifTech IT School (AIR Monitoring System)
2025

Tech Stack: React 18.3.1, Fastify, PostgreSQL, Drizzle ORM, tRPC, Material-UI,
Expertise Tailwind CSS, NX monorepo
Key Features:
JavaScript, TypeScript Interactive map with real-time sensor data visualization (Leaflet,
React-Leaflet)
HTML, CSS, React User management system with role-based access control
(admin/superadmin)
MySQL, MongoDB Type-safe API communication via tRPC with end-to-end type safety
Advanced map features: marker clustering, geocoding (LocationIQ API),
Node.js Express.js lazy loading
Secure authentication with JWT + bcrypt password hashing
Git, GitHub Real-time data updates through WebSocket connections
Form validation using Zod schemas

VS CODE

Language Student years and diploma project
2021
- Developed a full backend system using Node.js, Express.js, and
English pre-intermediate 2026 MongoDB, including a robust API structure and data modeling.
Successfully delivered a large-scale project with complex business
Ukrainian native logic.