Євгеній

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
2025 ElifTech IT School (AIR Monitoring System)
Preferred Contact Method: email Tech Stack: React 18.3.1, Fastify, PostgreSQL, Drizzle ORM, tRPC, Material-UI,
Tailwind CSS, NX monorepo
Key Features:
Education Interactive map with real-time sensor data visualization (Leaflet,
React-Leaflet)
User management system with role-based access control
NURE University (Kharkiv) (admin/superadmin)
Bachelor of Software Engineering Type-safe API communication via tRPC with end-to-end type safety
2020-2026 Advanced map features: marker clustering, geocoding (LocationIQ API),
lazy loading
Working with various technologies
Secure authentication with JWT + bcrypt password hashing
(Frontend, Backend, Mobile, IoT). Real-time data updates through WebSocket connections
Learning Computer Science. Form validation using Zod schemas
Acquainted with Flutter, PHP, Java, Architecture Highlights:
C#, Python. NX monorepo for efficient code organization and build processes
Comprehensive error handling and logging system
Password recovery system and session management
Expertise
Student years and diploma project
JavaScript, TypeScript
2021 Developed a comprehensive backend system using Node.js and
HTML, CSS, React - Express.js, demonstrating proficiency in server-side JavaScript
2026 development.
MySQL, MongoDB Implemented a MongoDB database solution, showcasing skills in
working with NoSQL databases and data modeling.
Node.js Express.js Utilized the Model-View-Controller (MVC) architectural pattern,
ensuring a well-structured and maintainable codebase.
Git, GitHub Created a robust API structure to handle complex data operations
and business logic.
VS CODE Successfully completed a large-scale project, highlighting
capability to manage and deliver substantial development work.

Language Introduction to JavaScript

English pre-intermediate 2020
Gained foundational knowledge of JavaScript through a series of
intensive laboratory works focused on algorithmic problem-solving.
Ukrainian native Tackled a diverse range of practical coding challenges, developing
strong skills in logic, data structures, and efficient code writing.