Ростислав

ROSTYSLAV MYKHATS
React / Front-End Developer — React.js, Next.js, TypeScript
Lviv, Ukraine (Remote) • [open contact info](look above in the "contact info" section) • [open contact info](look above in the "contact info" section)
SUMMARY
Front-end developer with 3+ years of commercial experience building React and Next.js web applications end-to-end — from front-end architecture and UI implementation through REST API integration, performance optimization, and production release. Solid TypeScript/JavaScript (ES6+) foundation, hands-on with Tailwind CSS, Redux Toolkit, and React Query, and used to collaborating closely with UI/UX designers, back-end engineers, and Project Managers to ship features on schedule. AI-first workflow (Cursor, Claude, GitHub Copilot) helps deliver clean, maintainable code faster. Also bring React Native experience, extending the same component-driven approach to cross-platform mobile.
EXPERIENCE
Frontend DeveloperJun 2023 – May 2024
WebStudio RED • Drohobych, Ukraine
• Architected a scalable front-end using Next.js and TypeScript, using SSR/SSG rendering to improve application performance and SEO.
• Integrated the front-end with REST APIs and implemented state management with Redux Toolkit and React Query, streamlining data caching and API integration.
• Built a reusable, accessible UI component library with Tailwind CSS, standardizing the design system and ensuring responsive, cross-browser layouts across projects.
• Led performance optimization and refactoring efforts, writing clean, scalable, and maintainable code that kept latency low and stability high in production.
• Built and shipped cross-platform mobile apps with React Native/Expo, maintaining full feature parity between iOS and Android.
Frontend DeveloperJun 2024 – Nov 2024
ItSites • Remote
• Architected front-end structure for multiple web applications, working with UI/UX designers, back-end developers, and Project Managers to keep delivery on schedule.
• Built data visualization dashboards using Recharts, LightningChart, and D3, turning complex REST API data into clear, interactive analytics for end users.
• Worked directly with UI/UX designers in Figma to ensure pixel-accurate implementation and technical feasibility of new features.
• Owned full-cycle development and deployment of applications, from architecture through release, ensuring high performance and stability in production.
• Used Firebase for backend services and extended functionality with custom Native Modules (Swift/Kotlin) for mobile builds.
INDEPENDENT & FREELANCE PROJECTS
Storyflow.so — AI-Driven WorkspaceFeb 2026 – Jun 2026
Freelance • Remote
• Contributed to a React-based AI workspace product for organizing projects and research, building side-navigation UI services.
• Participated in designing the AI pipeline used for content analysis within the workspace.
BegleitFix — Professional Services AppSep 2025 – Jun 2026
Freelance • begleitfix.de
• Developed and shipped a React Native/TypeScript mobile app for iOS and Android, including auto-renewable subscriptions and paywall logic.
• Handled full-cycle debugging and performance optimization, and managed the release process for both app stores.
Telegram Automation Bot & Admin PanelFeb 2022 – Present
1991 Fund • Volunteer
• Built an admin panel UI for real-time monitoring and configuration of bot operations, plus a companion web portal with data filtering and search.
• Collaborated with a Python back-end handling high-speed message processing for the underlying Telegram bot.
SKILLS
Frontend: React.js, Next.js (SSR/SSG), TypeScript, JavaScript (ES6+), React Native, Expo
Styling & Layout: Tailwind CSS, Styled Components, SCSS, MUI, Bootstrap — responsive & cross-browser layouts
State & Data: Redux Toolkit, React Query, Context API, REST API integration, Firebase
Data Visualization: D3.js, Recharts, LightningChart
Backend (working knowledge): NestJS, Node.js, Python, PostgreSQL
Tools: Git, Figma, Zeplin, Postman, Android Studio, Xcode
AI Tools: Cursor, Claude, GitHub Copilot, OpenAI API (GPT)
Languages: Ukrainian (native), English (professional working proficiency)
EDUCATION
Frontend Developer ProgramJun 2022 – Mar 2023
ITStep Academy • Drohobych, Ukraine
Computer ScienceSep 2016 – Jun 2020
SCLNAU • Stryi, Ukraine