Юрій

YURII SABAT
React / Next.js Frontend Developer

[open contact info](look above in the "contact info" section) | [open contact info](look above in the "contact info" section) | Lviv, Ukraine

SUMMARY
Frontend Developer with 1.5+ years of commercial experience building modern, responsive, and scalable
web and mobile applications using React, Next.js, TypeScript, and React Native. Experienced in developing
complex user interfaces, integrating REST APIs, implementing state management solutions (Redux Toolkit,
Zustand), and collaborating in Agile/Scrum teams. Passionate about clean architecture, reusable UI
components, performance optimization, and delivers high-quality user experiences

KEY SKILLS

Frontend: React, Next.js, React Native, JavaScript (ES6+), TypeScript
Styling & UI: HTML5, CSS3, SCSS, Tailwind, Bootstrap, Material UI
State Management: Redux, Redux Toolkit, Zustand, Context API
Data Fetching: TanStack Query (React Query), RTK Query, SWR
Databases & Backend: Firebase, MongoDB, SQL
Forms & Validation: React Hook Form, Formik, Zod, Yup
Testing: Jest, Vitest, React Testing Library
AI Tools: OpenAI API, Gemini API, Copilot, Bolt.new
Tools & Workflow: Git, GitHub, GitLab, Jira, Figma, Photoshop, Slack
Architecture & Practices: REST API, OOP, SOLID, React Patterns, Agile, Scrum

WORK EXPERIENCE

DelightCore — Full-Stack / Frontend Developer March 2025 - October 2025
Developed responsive and interactive web applications using React, Next.js, and TypeScript
with clean component architecture.
Built cross-platform mobile application features using React Native.
Implemented scalable application state management using Redux Toolkit and Zustand for
efficient data flow.
Integrated REST APIs and asynchronous backend services for seamless client-server
interaction.
Implemented AI-driven capabilities using the OpenAI API to enhance application features.
Participated in feature planning, code reviews, debugging, and performance optimizations.
Collaborated in an Agile development environment using Git, GitLab, and Jira.
Technologies: React, Next.js, TypeScript, React Native, Redux Toolkit, Zustand, REST API, OpenAI
API, Git, Firebase, TailWind

Linkcom — Full-Stack / Frontend Developer September 2023 - May 2024
Developed and maintained the company’s corporate website and internal CRM system.
Built responsive user interface components and business workflow tools.
Integrated interactive maps and complex data visualizations using Leaflet.js and D3.js.
Collaborated closely with cross-functional team members to deliver features, fix bugs, and
optimize existing user flows.
Technologies: JavaScript, Perl, SQL, Git, D3.js, Leaflet.js, HTML, CSS.
EDUCATION

Lviv Polytechnic National University
Master’s Degree in Information Sep 2024 - May 2026
Systems and Technologies
Bachelor’s Degree in Information Sep 2021 - May 2024
Technologies

College of LPNU
Junior Specialist in Computer Sep 2017 - May 2021
Engineering

LANGUAGES

Ukrainian — Native (C2)
English — Intermediate (B2)

PERSONAL PROJECTS

Project management tool with AI assistant | React
Developed an AI-powered project management app that automates workflows and database
mutations via natural language prompt processing.
Built interactive Kanban boards with drag-and-drop, real-time task filtering, team
management, and theme personalization.
Integrated Firebase Auth, Firestore DB, and Google Gemini API with clean, fully typed modular
architecture.
Optimized application performance and rendering speed through dynamic imports,
memoization, and efficient Firestore indexing, achieving high Lighthouse performance scores.
Ensured high code reliability and maintainability by setting up strict TypeScript configurations,
custom hooks for shared business logic, and comprehensive unit/integration testing.
Implemented robust fallback mechanisms and structured response validation for the Gemini
API to handle edge cases and prevent prompt-injection or malformed database mutations.
GitHub: link

E-Commerce Platform | React
Developed a modern, fully responsive e-commerce application featuring product catalog,
shopping cart, and user authentication.
Implemented modular component architecture and centralized state management.
GitHub: github.com/YuraSab/ecom-project | Live Demo: link