Сергій

SERHII RAZUMENKO
Front-End Developer (JavaScript, TypeScript, React)
Ukraine · Open to remote
Email: [відкрити контакти](див. вище в блоці «контактна інформація») | Phone: [відкрити контакти](див. вище в блоці «контактна інформація»)
Telegram: @SergeyRazumenko
LinkedIn: [відкрити контакти](див. вище в блоці «контактна інформація»)
PROFESSIONAL SUMMARY
Front-End Developer with 10+ years of commercial experience focused on building clean, scalable and user-centered web interfaces. Strong expertise in React and TypeScript, component-driven UI architecture, modern CSS, and API integrations. Comfortable working in product teams, participating in code reviews, and delivering maintainable solutions in Agile environments.
CORE SKILLS
JavaScript (ES6+), TypeScript, React, Redux, Redux-Saga, HTML5, CSS3, SASS/SCSS, Tailwind CSS, Bootstrap, REST APIs, GraphQL (Apollo), Git, Docker, AWS, Jest, Playwright, Figma, Adobe Photoshop
PROFESSIONAL EXPERIENCE
Front-End Developer — UBRAINIANS | Nov 2024 – Present
• Develop and maintain React-based web applications
• Build reusable UI components using TypeScript
• Integrate REST APIs and collaborate closely with backend teams
• Follow accessibility standards and clean code practices
Front-End Developer — Lestro | Mar 2024 – Nov 2024
• Developed responsive layouts and JavaScript functionality
• Created internal documentation for reusable templates
• Refactored legacy front-end codebases
Software Engineer — AMC Bridge | Feb 2021 – May 2023
• Implemented front-end features using React and TypeScript
• Integrated GraphQL APIs and payment workflows
• Wrote unit and end‑to‑end tests (Jest, Playwright)
• Participated in code reviews and Agile ceremonies
Front-End Developer — Crumina WP | Apr 2015 – Feb 2021
• Developed HTML and WordPress templates
• Implemented UI animations and optimized performance
• Maintained long-term production projects
EDUCATION
Bachelor of Electronic Engineering — Sumy State University, Ukraine, 2007
LANGUAGES
English — Intermediate