Яна

YANA Email: [open contact info](look above in the "contact info" section)

KARACHUN
Linkedin:[open contact info](look above in the "contact info" section)
yana-karachun-549484357/

BACKEND DEVELOPER

TECHNICAL
SKILLS
Languages & Core: JavaScript, Tools: Git, GitHub, Postman
Node.js Technologies: REST APIs,
Frameworks: Express.js, Koa.js GraphQL, Socket.io, RxJS,
Databases: MySQL, MongoDB Methodologies & Tools:
ORMs: Sequelize, Mongoose SCRUM, Notion, Jira
LANGUAGE
SKILLS
English: B1
Ukrainian: Native

EXPERIENCE
OCTOBER2025 - NOVEMBER2025
Title: Course Work - Train Schedule Manager
Description: A full-stack desktop application built with JavaScript and Electron.js
for managing train schedules. The project implements complete functionality for
scheduling operations, data persistence using JSON files, and a dynamic UI with
advanced sorting and filtering capabilities.
Responsibilities:
Designed and implemented object-oriented architecture with proper
separation of concerns (models, services, UI layers)
Built data models with
validation and custom error handling
Created UI components with HTML/CSS and interactive JavaScript
functionality
Established IPC communication between main and renderer processes for
safe inter-process data exchange

DECEMBER2025 - FEBRUARY2026
Title: Advanced Backend with Node.js, SoftServe Academy
Description: Comprehensive backend development course focused on building
scalable web applications, REST/GraphQL APIs, and real-time services.
Practical Experience:
API Development: Built robust RESTful and GraphQL APIs using
Express.js and Koa.js.
Database Integration: Managed relational (MySQL) and NoSQL
(MongoDB) databases using ORMs/ODMs like Sequelize and Mongoose.
Architecture & Performance: Applied OOP principles, asynchronous
programming, child processes, and worker threads to optimize application
flow.
Security & Real-Time: Implemented JWT-based authentication and built
bidirectional communication features using Socket.io and RxJS.
Testing & Tools: Ensured code reliability through unit testing, integrated
EJS templating, and managed version control via GitHub.

EDUCATION
2024-PRESENT
Software engineering, Lviv Polytechnic National University.