Андрій

ANDRII HAVRYLIN
fullstack developer (React, TypeScript, Node.js)
Email: [відкрити контакти](див. вище в блоці «контактна інформація») | Odesa, Ukraine (remote/office) | LinkedIn | Telegram | GitHub | Djinni

SUMMARY
Fullstack developer specializing in high-performance web applications, server-side rendering, and modular e-
commerce interfaces. Proficient in React, TypeScript, JavaScript (ES6+), Node.js, REST APIs, and SCSS
Modules following Atomic Design principles. Built and shipped key components for the Nice Gadgets e-
commerce platform, along with an interactive 2048 game and a full-featured React To-Do application. Integrates AI
agents (Claude Code and Gemini) directly into daily workflows to automate refactoring, debug complex UI state,
write fullstack API routes, and accelerate delivery.

SKILLS
HTML5, CSS3, Sass (SCSS), REST API Node.js
BEM, Tailwind Git, Eslint, Prettier
React Based knowledge of Microsoft Access
Typescript, JavaScript database
Claude Code, Gemini Jira
SQL Knowledge of Atomic design concepts
LANGUAGES
English – Intermediate
Ukrainian – Native

PORTFOLIO
Todo App
Technologies: React, TypeScript, REST API, SASS/SCSS, Classnames utility.
Full CRUD Operations: Create, read, update, and delete tasks in real time via API requests.
Inline Task Editing: Double-click any task title to modify its contents directly.
Task Filtering: Seamlessly switch between All, Active, and Completed tasks.
Batch Actions: Toggle All: Mark all tasks as completed or active with a single click, Clear Completed: Remove all finished
tasks concurrently.
Optimistic UI & Loaders: Smooth user experience featuring temporary tasks (tempTodo), overlay loaders for pending items,
and auto-focus fields.
Error Handling: Dynamic notification system with auto-dismissal for network failures or input errors.
Demo GitHub code

E-commerсe group project (Nice Gadgets store)
Technologies: React, TypeScript, SCSS Modules, React Router, Supabase, Skeleton, HTML5, CSS3.
Developed core e-commerce features, including interactive Search, dynamic Cart management, product catalog Filters,
and the "Shop by Category" section.
Built a fast, typo-tolerant search and catalog filtering system with real-time UI response to optimize product discovery.
Implemented state management and URL synchronization for filters and cart actions to ensure a seamless user experience
across page reloads.
Applied SCSS Modules and Atomic Design principles to maintain a modular architecture and clean code standards within a
5-person development team.
Optimized mobile responsiveness across all devices and actively debugged cross-browser layout and state issues.
Live Website GitHub code

2048 Game
Technologies: JavaScript, HTML5, SCSS, BEM
Developed a fully interactive, responsive 2048 grid puzzle game using React and TypeScript with strict type definitions.
Implemented complex tile-merging, movement logic, and score calculation algorithms to handle matrix state updates
accurately.
Integrated swipe and keyboard event listeners alongside local storage persistence to save high scores and maintain state
across sessions.
Applied modular SCSS for smooth UI animations and layout responsiveness across desktop and mobile browsers.
Demo GitHub code

Landing Page
Technologies: JavaScript, HTML5, SCSS, BEM
Developed a fully responsive, pixel-perfect landing page following a mobile-first approach for seamless rendering
across all screen sizes.
Structured component architecture using the BEM methodology and modular SCSS to deliver clean, highly scalable,
and maintainable styling.
Optimized performance, page layout shifts, and asset delivery to ensure fast loading times and smooth cross-browser
compatibility.
Resolved layout edge cases and refined interactive UI elements to improve user navigation and visual consistency.
Demo GitHub code

EDUCATION
Specialized Diploma in Web Design, Computer Graphics & Programming Odesa Corporate Computer College | 2024–2026
Focus: Web Design, Computer Graphics, Software Programming, and Systems & Network Administration.

Complete General Secondary Education
Separate Structural Unit "Odesa Technical College of Computer Technologies of Odesa I.I. Mechnikov National University" |
2024–2026

ADDITIONAL EDUCATION
Fullstack course at Mate academy - certificate
GoIteens Frontend Course - certificate