Особисті дані приховані

ROMAN KOZYREV
Frontend Developer
[відкрити контакти](див. вище в блоці «контактна інформація») [відкрити контакти](див. вище в блоці «контактна інформація») Germany, Cloppenburg

LinkedIn Portfolio

PROFILE
Frontend developer with 3+ years hands-on experience building fast, user-friendly, and scalable
web applications using React, TypeScript, and Next.js. I optimize performance, reduce load
times, and increase organic traffic through clean, maintainable code. Passionate about tackling
complex challenges and finding elegant solutions that enhance usability and efficiency. I value
teamwork, initiative, and continuous growth. Ready to contribute to a European company by
developing cutting-edge products that bring real value to users.

PROFICIENCIES
JavaScript, TypeScript, React, Next.js, Redux/MobX, HTML, CSS, Framer Motion, Tailwind,
Boostrap, Webpack/Vite, REST API, Node.js, NPM, WebSockets

WORK EXPERIENCE
Frontend Developer, InfoStyle December 2024 — March 2025
Implemented animations of varying complexity for a Telegram MiniApp using both pure CSS
(transitions, keyframes, CSS Houdini) and Framer Motion for advanced, interactive behaviors ensured
smooth performance and alignment with Telegram UX guidelines.
Defined and implemented best coding practices and scalable architecture, improving maintainability
and performance.

Middle Frontend Developer, Ruliad LTD September 2023 — October 2024
Designed and developed a scalable and reusable component library in React and TypeScript with
Storybook, improving UI consistency and accelerating development across projects.
Implemented advanced real-time data synchronization with WebSockets, reducing latency and
enhancing live updates for thousands of users.
Boosted SEO and performance with Next.js SSR, lazy loading, and code-splitting, cutting load time by
25% and driving 15% more organic traffic.
Conducted code reviews and mentorship sessions for junior developers, promoting best coding
practices and continuous learning.

Frontend Developer, ScrumLaunch July 2021 — September 2023
Led development of a core event management module with creation, editing, and sharing features
using React, Redux, and TypeScript.
Reduced service requests by 20% by optimizing request handling and improving application
performance.
Reduced re-renders and improved data caching, leading to a 30% decrease in initial load time.

EDUCATION
Bachelor’s degree in Law,
Master’s degree in State Security
National Academy of the Security Service of Ukraine, Kyiv, September 2010 — June 2015

Full Stack Developer Course
IT School GOIT, June 2020 — July 2021