Юрій

YURII SABAT
Full-Stack / Frontend Engineer
Lviv, Ukraine | [open contact info](look above in the "contact info" section) | [open contact info](look above in the "contact info" section)
Telegram | LinkedIn| GitHub

SUMMARY

Full-Stack Engineer with 2 years of commercial experience specializing in building modern,
scalable web and mobile applications using TypeScript, React, Next.js, Node.js, and React Native.
Proficient in designing responsive UIs, building RESTful APIs, working with SQL/NoSQL databases
(PostgreSQL, Prisma, Firebase), and implementing state management (Zustand, Redux Toolkit,
TanStack Query). Open to leveraging AI-assisted tools (Cursor, Copilot, Gemini API, OpenAI API
etc) to accelerate development productivity and optimize product workflows while maintaining
strict architectural quality.

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
Backend: Node.js, NestJS, Express.js, REST API
Databases & ORM: SQL, PostgreSQL, Prisma, Mongoose, MongoDB, Supabase, Firebase
Forms & Validation: React Hook Form, Formik, Zod, Yup
Testing: Jest, Vitest, React Testing Library
AI Tools: Google Gemini API, OpenAI API, Cursor, GitHub Copilot (AI-assisted engineering)
Tools & Workflow: Git, GitHub, GitLab, Jira, Figma, Photoshop, Slack
Architecture & Patterns: OOP, SOLID, GoF / Design Patterns (Singleton, Factory, Builder, Facade,
Adapter, Decorator, Strategy, Observer, Pub-Sub), React Patterns (Custom Hooks, HOC,
Container/Presentational)

WORK EXPERIENCE

DelightCore — Full-Stack Developer | March 2025 - November 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, TanStack Query,
REST API, OpenAI API, Tailwind CSS, Firebase, Git.

Linkcom — Full-Stack Developer | August 2023 - September 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 Systems and Technologies | Sep 2024 - May 2026
Bachelor’s Degree in Information Technologies | Sep 2021 - May 2024
College of LPNU
Junior Specialist in Computer Engineering | Sep 2017 - May 2021

LANGUAGES

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

PERSONAL PROJECTS

AI-Driven Project management tool
Built a commercial-grade project management application featuring natural language AI task
decomposition, interactive Kanban boards with drag-and-drop (@hello-pangea/dnd), real-
time filtering, and team analytics.
Architected the frontend with React 19, TypeScript, Vite, React Router v7, Zustand, TanStack
Query, and Tailwind CSS v4.
Integrated Firebase (Auth & Firestore) and Google Gemini API (@google/generative-ai) with
structured response validation, prompt-injection defense, and fallback mechanisms.
Optimized application rendering and load speed via dynamic imports, memoization, and
efficient Firestore indexing.
Maintained high code quality through strict TypeScript configs, modular custom hooks for
shared business logic, and unit testing with Vitest.
GitHub: link
Demo: link

E-Commerce Platform | React
Developed a responsive e-commerce web app with product filtering, shopping cart state
persistence, and auth flows.
Built modular UI components with React, TypeScript, and Tailwind CSS, managing application
state with Zustand/Redux.
GitHub: link
Demo: link